+++ /dev/null
-/*
- * Copyright 2005 Juan Lang
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * This file implements ASN.1 DER encoding and decoding of a limited set of
- * types. It isn't a full ASN.1 implementation. Microsoft implements BER
- * encoding of many of the basic types in msasn1.dll, but that interface is
- * undocumented, so I implement them here.
- *
- * References:
- * "A Layman's Guide to a Subset of ASN.1, BER, and DER", by Burton Kaliski
- * (available online, look for a PDF copy as the HTML versions tend to have
- * translation errors.)
- *
- * RFC3280, http://www.faqs.org/rfcs/rfc3280.html
- *
- * MSDN, especially:
- * http://msdn.microsoft.com/library/en-us/seccrypto/security/constants_for_cryptencodeobject_and_cryptdecodeobject.asp
- */
-#include <assert.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define NONAMELESSUNION
-
-#include "windef.h"
-#include "winbase.h"
-#include "excpt.h"
-#include "wincrypt.h"
-#include "winreg.h"
-#include "snmp.h"
-#include "wine/debug.h"
-#include "wine/exception.h"
-#include "crypt32_private.h"
-
-/* This is a bit arbitrary, but to set some limit: */
-#define MAX_ENCODED_LEN 0x02000000
-
-/* a few asn.1 tags we need */
-#define ASN_BOOL (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x01)
-#define ASN_BITSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x03)
-#define ASN_ENUMERATED (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x0a)
-#define ASN_SETOF (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x11)
-#define ASN_NUMERICSTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x12)
-#define ASN_PRINTABLESTRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x13)
-#define ASN_IA5STRING (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x16)
-#define ASN_UTCTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x17)
-#define ASN_GENERALTIME (ASN_UNIVERSAL | ASN_PRIMITIVE | 0x18)
-
-#define ASN_FLAGS_MASK 0xe0
-#define ASN_TYPE_MASK 0x1f
-
-WINE_DEFAULT_DEBUG_CHANNEL(crypt);
-
-typedef BOOL (WINAPI *CryptEncodeObjectFunc)(DWORD, LPCSTR, const void *,
- BYTE *, DWORD *);
-typedef BOOL (WINAPI *CryptEncodeObjectExFunc)(DWORD, LPCSTR, const void *,
- DWORD, PCRYPT_ENCODE_PARA, BYTE *, DWORD *);
-typedef BOOL (WINAPI *CryptDecodeObjectFunc)(DWORD, LPCSTR, const BYTE *,
- DWORD, DWORD, void *, DWORD *);
-typedef BOOL (WINAPI *CryptDecodeObjectExFunc)(DWORD, LPCSTR, const BYTE *,
- DWORD, DWORD, PCRYPT_DECODE_PARA, void *, DWORD *);
-
-/* Prototypes for built-in encoders/decoders. They follow the Ex style
- * prototypes. The dwCertEncodingType and lpszStructType are ignored by the
- * built-in functions, but the parameters are retained to simplify
- * CryptEncodeObjectEx/CryptDecodeObjectEx, since they must call functions in
- * external DLLs that follow these signatures.
- * FIXME: some built-in functions are suitable to be called directly by
- * CryptEncodeObjectEx/CryptDecodeObjectEx (they implement exception handling
- * and memory allocation if requested), others are only suitable to be called
- * internally. Comment which are which.
- */
-static BOOL WINAPI CRYPT_AsnEncodeOid(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodePubKeyInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeOctets(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeBitsSwapBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeUnsignedInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-static BOOL WINAPI CRYPT_AsnEncodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded);
-
-static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodePubKeyInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeExtensions, except assumes rgExtension is set ahead of
- * time, doesn't do memory allocation, and doesn't do exception handling.
- * (This isn't intended to be the externally-called one.)
- */
-static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodeOid(const BYTE *pbEncoded, DWORD cbEncoded,
- DWORD dwFlags, LPSTR pszObjId, DWORD *pcbObjId);
-/* Assumes algo->Parameters.pbData is set ahead of time. Internal func. */
-static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Assumes the CRYPT_DATA_BLOB's pbData member has been initialized */
-static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeBits, but assumes the CRYPT_INTEGER_BLOB's pbData
- * member has been initialized, doesn't do exception handling, and doesn't do
- * memory allocation.
- */
-static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeInteger, but assumes the CRYPT_INTEGER_BLOB's pbData
- * member has been initialized, doesn't do exception handling, and doesn't do
- * memory allocation.
- */
-static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo);
-/* Like CRYPT_AsnDecodeInteger, but unsigned. */
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
- DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo);
-
-BOOL WINAPI CryptEncodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const void *pvStructInfo, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- HCRYPTOIDFUNCADDR hFunc;
- CryptEncodeObjectFunc pCryptEncodeObject;
-
- TRACE("(0x%08lx, %s, %p, %p, %p)\n", dwCertEncodingType,
- debugstr_a(lpszStructType), pvStructInfo, pbEncoded,
- pcbEncoded);
-
- if (!pbEncoded && !pcbEncoded)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
-
- /* Try registered DLL first.. */
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_ENCODE_OBJECT_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&pCryptEncodeObject, &hFunc);
- if (pCryptEncodeObject)
- {
- ret = pCryptEncodeObject(dwCertEncodingType, lpszStructType,
- pvStructInfo, pbEncoded, pcbEncoded);
- CryptFreeOIDFunctionAddress(hFunc, 0);
- }
- else
- {
- /* If not, use CryptEncodeObjectEx */
- ret = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType,
- pvStructInfo, 0, NULL, pbEncoded, pcbEncoded);
- }
- return ret;
-}
-
-/* Helper function to check *pcbEncoded, set it to the required size, and
- * optionally to allocate memory. Assumes pbEncoded is not NULL.
- * If CRYPT_ENCODE_ALLOC_FLAG is set in dwFlags, *pbEncoded will be set to a
- * pointer to the newly allocated memory.
- */
-static BOOL CRYPT_EncodeEnsureSpace(DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded,
- DWORD bytesNeeded)
-{
- BOOL ret = TRUE;
-
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- {
- if (pEncodePara && pEncodePara->pfnAlloc)
- *(BYTE **)pbEncoded = pEncodePara->pfnAlloc(bytesNeeded);
- else
- *(BYTE **)pbEncoded = LocalAlloc(0, bytesNeeded);
- if (!*(BYTE **)pbEncoded)
- ret = FALSE;
- else
- *pcbEncoded = bytesNeeded;
- }
- else if (bytesNeeded > *pcbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- return ret;
-}
-
-static BOOL CRYPT_EncodeLen(DWORD len, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- DWORD bytesNeeded, significantBytes = 0;
-
- if (len <= 0x7f)
- bytesNeeded = 1;
- else
- {
- DWORD temp;
-
- for (temp = len, significantBytes = sizeof(temp); !(temp & 0xff000000);
- temp <<= 8, significantBytes--)
- ;
- bytesNeeded = significantBytes + 1;
- }
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- return TRUE;
- }
- if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- return FALSE;
- }
- if (len <= 0x7f)
- *pbEncoded = (BYTE)len;
- else
- {
- DWORD i;
-
- *pbEncoded++ = significantBytes | 0x80;
- for (i = 0; i < significantBytes; i++)
- {
- *(pbEncoded + significantBytes - i - 1) = (BYTE)(len & 0xff);
- len >>= 8;
- }
- }
- *pcbEncoded = bytesNeeded;
- return TRUE;
-}
-
-struct AsnEncodeSequenceItem
-{
- const void *pvStructInfo;
- CryptEncodeObjectExFunc encodeFunc;
- DWORD size; /* used during encoding, not for your use */
-};
-
-static BOOL WINAPI CRYPT_AsnEncodeSequence(DWORD dwCertEncodingType,
- struct AsnEncodeSequenceItem items[], DWORD cItem, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- DWORD i, dataLen = 0;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", items, cItem, dwFlags, pEncodePara,
- pbEncoded, *pcbEncoded);
- for (i = 0, ret = TRUE; ret && i < cItem; i++)
- {
- ret = items[i].encodeFunc(dwCertEncodingType, NULL,
- items[i].pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL,
- NULL, &items[i].size);
- /* Some functions propagate their errors through the size */
- if (!ret)
- *pcbEncoded = items[i].size;
- dataLen += items[i].size;
- }
- if (ret)
- {
- DWORD lenBytes, bytesNeeded;
-
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCE;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; ret && i < cItem; i++)
- {
- ret = items[i].encodeFunc(dwCertEncodingType, NULL,
- items[i].pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG,
- NULL, pbEncoded, &items[i].size);
- /* Some functions propagate their errors through the size */
- if (!ret)
- *pcbEncoded = items[i].size;
- pbEncoded += items[i].size;
- }
- }
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-struct AsnConstructedItem
-{
- BYTE tag;
- const void *pvStructInfo;
- CryptEncodeObjectExFunc encodeFunc;
-};
-
-static BOOL WINAPI CRYPT_AsnEncodeConstructed(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- const struct AsnConstructedItem *item =
- (const struct AsnConstructedItem *)pvStructInfo;
- DWORD len;
-
- if ((ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
- item->pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &len)))
- {
- DWORD dataLen, bytesNeeded;
-
- CRYPT_EncodeLen(len, NULL, &dataLen);
- bytesNeeded = 1 + dataLen + len;
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
- pbEncoded, pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_CONTEXT | ASN_CONSTRUCTOR | item->tag;
- CRYPT_EncodeLen(len, pbEncoded, &dataLen);
- pbEncoded += dataLen;
- ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
- item->pvStructInfo, dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL,
- pbEncoded, &len);
- if (!ret)
- {
- /* Some functions propagate their errors through the size */
- *pcbEncoded = len;
- }
- }
- }
- else
- {
- /* Some functions propagate their errors through the size */
- *pcbEncoded = len;
- }
- return ret;
-}
-
-struct AsnEncodeTagSwappedItem
-{
- BYTE tag;
- const void *pvStructInfo;
- CryptEncodeObjectExFunc encodeFunc;
-};
-
-/* Sort of a wacky hack, it encodes something using the struct
- * AsnEncodeTagSwappedItem's encodeFunc, then replaces the tag byte with the tag
- * given in the struct AsnEncodeTagSwappedItem.
- */
-static BOOL WINAPI CRYPT_AsnEncodeSwapTag(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- const struct AsnEncodeTagSwappedItem *item =
- (const struct AsnEncodeTagSwappedItem *)pvStructInfo;
-
- ret = item->encodeFunc(dwCertEncodingType, lpszStructType,
- item->pvStructInfo, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- if (ret && pbEncoded)
- *pbEncoded = item->tag;
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCertVersion(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- const DWORD *ver = (const DWORD *)pvStructInfo;
- BOOL ret;
-
- /* CERT_V1 is not encoded */
- if (*ver == CERT_V1)
- {
- *pcbEncoded = 0;
- ret = TRUE;
- }
- else
- {
- struct AsnConstructedItem item = { 0, ver, CRYPT_AsnEncodeInt };
-
- ret = CRYPT_AsnEncodeConstructed(dwCertEncodingType, X509_INTEGER,
- &item, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_CopyEncodedBlob(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- const CRYPT_DER_BLOB *blob = (const CRYPT_DER_BLOB *)pvStructInfo;
- BOOL ret;
-
- if (!pbEncoded)
- {
- *pcbEncoded = blob->cbData;
- ret = TRUE;
- }
- else if (*pcbEncoded < blob->cbData)
- {
- *pcbEncoded = blob->cbData;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- if (blob->cbData)
- memcpy(pbEncoded, blob->pbData, blob->cbData);
- *pcbEncoded = blob->cbData;
- ret = TRUE;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeValidity(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- /* This has two filetimes in a row, a NotBefore and a NotAfter */
- const FILETIME *timePtr = (const FILETIME *)pvStructInfo;
- struct AsnEncodeSequenceItem items[] = {
- { timePtr++, CRYPT_AsnEncodeChoiceOfTime, 0 },
- { timePtr, CRYPT_AsnEncodeChoiceOfTime, 0 },
- };
-
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeAlgorithmId(
- DWORD dwCertEncodingType, LPCSTR lpszStructType, const void *pvStructInfo,
- DWORD dwFlags, PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded,
- DWORD *pcbEncoded)
-{
- const CRYPT_ALGORITHM_IDENTIFIER *algo =
- (const CRYPT_ALGORITHM_IDENTIFIER *)pvStructInfo;
- BOOL ret;
- struct AsnEncodeSequenceItem items[] = {
- { algo->pszObjId, CRYPT_AsnEncodeOid, 0 },
- { &algo->Parameters, CRYPT_CopyEncodedBlob, 0 },
- };
-
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodePubKeyInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_PUBLIC_KEY_INFO *info =
- (const CERT_PUBLIC_KEY_INFO *)pvStructInfo;
- struct AsnEncodeSequenceItem items[] = {
- { &info->Algorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
- { &info->PublicKey, CRYPT_AsnEncodeBits, 0 },
- };
-
- TRACE("Encoding public key with OID %s\n",
- debugstr_a(info->Algorithm.pszObjId));
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCert(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_SIGNED_CONTENT_INFO *info =
- (const CERT_SIGNED_CONTENT_INFO *)pvStructInfo;
- struct AsnEncodeSequenceItem items[] = {
- { &info->ToBeSigned, CRYPT_CopyEncodedBlob, 0 },
- { &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
- { &info->Signature, CRYPT_AsnEncodeBitsSwapBytes, 0 },
- };
-
- if (dwFlags & CRYPT_ENCODE_NO_SIGNATURE_BYTE_REVERSAL_FLAG)
- items[2].encodeFunc = CRYPT_AsnEncodeBits;
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Like in Windows, this blithely ignores the validity of the passed-in
- * CERT_INFO, and just encodes it as-is. The resulting encoded data may not
- * decode properly, see CRYPT_AsnDecodeCertInfo.
- */
-static BOOL WINAPI CRYPT_AsnEncodeCertInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_INFO *info = (const CERT_INFO *)pvStructInfo;
- struct AsnEncodeSequenceItem items[10] = {
- { &info->dwVersion, CRYPT_AsnEncodeCertVersion, 0 },
- { &info->SerialNumber, CRYPT_AsnEncodeInteger, 0 },
- { &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
- { &info->Issuer, CRYPT_CopyEncodedBlob, 0 },
- { &info->NotBefore, CRYPT_AsnEncodeValidity, 0 },
- { &info->Subject, CRYPT_CopyEncodedBlob, 0 },
- { &info->SubjectPublicKeyInfo, CRYPT_AsnEncodePubKeyInfo, 0 },
- { 0 }
- };
- struct AsnConstructedItem constructed[3] = { { 0 } };
- DWORD cItem = 7, cConstructed = 0;
-
- if (info->IssuerUniqueId.cbData)
- {
- constructed[cConstructed].tag = 1;
- constructed[cConstructed].pvStructInfo = &info->IssuerUniqueId;
- constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeBits;
- items[cItem].pvStructInfo = &constructed[cConstructed];
- items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
- cConstructed++;
- cItem++;
- }
- if (info->SubjectUniqueId.cbData)
- {
- constructed[cConstructed].tag = 2;
- constructed[cConstructed].pvStructInfo = &info->SubjectUniqueId;
- constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeBits;
- items[cItem].pvStructInfo = &constructed[cConstructed];
- items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
- cConstructed++;
- cItem++;
- }
- if (info->cExtension)
- {
- constructed[cConstructed].tag = 3;
- constructed[cConstructed].pvStructInfo = &info->cExtension;
- constructed[cConstructed].encodeFunc = CRYPT_AsnEncodeExtensions;
- items[cItem].pvStructInfo = &constructed[cConstructed];
- items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
- cConstructed++;
- cItem++;
- }
-
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
- dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCRLEntry(const CRL_ENTRY *entry,
- BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- struct AsnEncodeSequenceItem items[3] = {
- { &entry->SerialNumber, CRYPT_AsnEncodeInteger, 0 },
- { &entry->RevocationDate, CRYPT_AsnEncodeChoiceOfTime, 0 },
- { 0 }
- };
- DWORD cItem = 2;
- BOOL ret;
-
- TRACE("%p, %p, %p\n", entry, pbEncoded, pcbEncoded);
-
- if (entry->cExtension)
- {
- items[cItem].pvStructInfo = &entry->cExtension;
- items[cItem].encodeFunc = CRYPT_AsnEncodeExtensions;
- cItem++;
- }
-
- ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
- pbEncoded, pcbEncoded);
-
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCRLEntries(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- DWORD cCRLEntry = *(const DWORD *)pvStructInfo;
- DWORD bytesNeeded, dataLen, lenBytes, i;
- const CRL_ENTRY *rgCRLEntry = *(const CRL_ENTRY **)
- ((const BYTE *)pvStructInfo + sizeof(DWORD));
- BOOL ret = TRUE;
-
- for (i = 0, dataLen = 0; ret && i < cCRLEntry; i++)
- {
- DWORD size;
-
- ret = CRYPT_AsnEncodeCRLEntry(&rgCRLEntry[i], NULL, &size);
- if (ret)
- dataLen += size;
- }
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; i < cCRLEntry; i++)
- {
- DWORD size = dataLen;
-
- ret = CRYPT_AsnEncodeCRLEntry(&rgCRLEntry[i], pbEncoded, &size);
- pbEncoded += size;
- dataLen -= size;
- }
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCRLVersion(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- const DWORD *ver = (const DWORD *)pvStructInfo;
- BOOL ret;
-
- /* CRL_V1 is not encoded */
- if (*ver == CRL_V1)
- {
- *pcbEncoded = 0;
- ret = TRUE;
- }
- else
- ret = CRYPT_AsnEncodeInt(dwCertEncodingType, X509_INTEGER, ver,
- dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- return ret;
-}
-
-/* Like in Windows, this blithely ignores the validity of the passed-in
- * CRL_INFO, and just encodes it as-is. The resulting encoded data may not
- * decode properly, see CRYPT_AsnDecodeCRLInfo.
- */
-static BOOL WINAPI CRYPT_AsnEncodeCRLInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CRL_INFO *info = (const CRL_INFO *)pvStructInfo;
- struct AsnEncodeSequenceItem items[7] = {
- { &info->dwVersion, CRYPT_AsnEncodeCRLVersion, 0 },
- { &info->SignatureAlgorithm, CRYPT_AsnEncodeAlgorithmId, 0 },
- { &info->Issuer, CRYPT_CopyEncodedBlob, 0 },
- { &info->ThisUpdate, CRYPT_AsnEncodeChoiceOfTime, 0 },
- { 0 }
- };
- DWORD cItem = 4;
-
- if (info->NextUpdate.dwLowDateTime || info->NextUpdate.dwHighDateTime)
- {
- items[cItem].pvStructInfo = &info->NextUpdate;
- items[cItem].encodeFunc = CRYPT_AsnEncodeChoiceOfTime;
- cItem++;
- }
- if (info->cCRLEntry)
- {
- items[cItem].pvStructInfo = &info->cCRLEntry;
- items[cItem].encodeFunc = CRYPT_AsnEncodeCRLEntries;
- cItem++;
- }
- if (info->cExtension)
- {
- items[cItem].pvStructInfo = &info->cExtension;
- items[cItem].encodeFunc = CRYPT_AsnEncodeExtensions;
- cItem++;
- }
-
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
- dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL CRYPT_AsnEncodeExtension(CERT_EXTENSION *ext, BYTE *pbEncoded,
- DWORD *pcbEncoded)
-{
- BOOL ret;
- struct AsnEncodeSequenceItem items[3] = {
- { ext->pszObjId, CRYPT_AsnEncodeOid, 0 },
- { NULL, NULL, 0 },
- { NULL, NULL, 0 },
- };
- DWORD cItem = 1;
-
- TRACE("%p, %p, %ld\n", ext, pbEncoded, *pcbEncoded);
-
- if (ext->fCritical)
- {
- items[cItem].pvStructInfo = &ext->fCritical;
- items[cItem].encodeFunc = CRYPT_AsnEncodeBool;
- cItem++;
- }
- items[cItem].pvStructInfo = &ext->Value;
- items[cItem].encodeFunc = CRYPT_AsnEncodeOctets;
- cItem++;
-
- ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
- pbEncoded, pcbEncoded);
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded, dataLen, lenBytes, i;
- const CERT_EXTENSIONS *exts = (const CERT_EXTENSIONS *)pvStructInfo;
-
- ret = TRUE;
- for (i = 0, dataLen = 0; ret && i < exts->cExtension; i++)
- {
- DWORD size;
-
- ret = CRYPT_AsnEncodeExtension(&exts->rgExtension[i], NULL, &size);
- if (ret)
- dataLen += size;
- }
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; i < exts->cExtension; i++)
- {
- DWORD size = dataLen;
-
- ret = CRYPT_AsnEncodeExtension(&exts->rgExtension[i],
- pbEncoded, &size);
- pbEncoded += size;
- dataLen -= size;
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeOid(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- LPCSTR pszObjId = (LPCSTR)pvStructInfo;
- DWORD bytesNeeded = 0, lenBytes;
- BOOL ret = TRUE;
- int firstPos = 0;
- BYTE firstByte = 0;
-
- TRACE("%s\n", debugstr_a(pszObjId));
-
- if (pszObjId)
- {
- const char *ptr;
- int val1, val2;
-
- if (sscanf(pszObjId, "%d.%d.%n", &val1, &val2, &firstPos) != 2)
- {
- SetLastError(CRYPT_E_ASN1_ERROR);
- return FALSE;
- }
- bytesNeeded++;
- firstByte = val1 * 40 + val2;
- ptr = pszObjId + firstPos;
- while (ret && *ptr)
- {
- int pos;
-
- /* note I assume each component is at most 32-bits long in base 2 */
- if (sscanf(ptr, "%d%n", &val1, &pos) == 1)
- {
- if (val1 >= 0x10000000)
- bytesNeeded += 5;
- else if (val1 >= 0x200000)
- bytesNeeded += 4;
- else if (val1 >= 0x4000)
- bytesNeeded += 3;
- else if (val1 >= 0x80)
- bytesNeeded += 2;
- else
- bytesNeeded += 1;
- ptr += pos;
- if (*ptr == '.')
- ptr++;
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_ERROR);
- return FALSE;
- }
- }
- CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
- }
- else
- lenBytes = 1;
- bytesNeeded += 1 + lenBytes;
- if (pbEncoded)
- {
- if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pbEncoded++ = ASN_OBJECTIDENTIFIER;
- CRYPT_EncodeLen(bytesNeeded - 1 - lenBytes, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- if (pszObjId)
- {
- const char *ptr;
- int val, pos;
-
- *pbEncoded++ = firstByte;
- ptr = pszObjId + firstPos;
- while (ret && *ptr)
- {
- sscanf(ptr, "%d%n", &val, &pos);
- {
- unsigned char outBytes[5];
- int numBytes, i;
-
- if (val >= 0x10000000)
- numBytes = 5;
- else if (val >= 0x200000)
- numBytes = 4;
- else if (val >= 0x4000)
- numBytes = 3;
- else if (val >= 0x80)
- numBytes = 2;
- else
- numBytes = 1;
- for (i = numBytes; i > 0; i--)
- {
- outBytes[i - 1] = val & 0x7f;
- val >>= 7;
- }
- for (i = 0; i < numBytes - 1; i++)
- *pbEncoded++ = outBytes[i] | 0x80;
- *pbEncoded++ = outBytes[i];
- ptr += pos;
- if (*ptr == '.')
- ptr++;
- }
- }
- }
- }
- }
- *pcbEncoded = bytesNeeded;
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeNameValue(DWORD dwCertEncodingType,
- CERT_NAME_VALUE *value, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BYTE tag;
- DWORD bytesNeeded, lenBytes, encodedLen;
- BOOL ret = TRUE;
-
- switch (value->dwValueType)
- {
- case CERT_RDN_NUMERIC_STRING:
- tag = ASN_NUMERICSTRING;
- encodedLen = value->Value.cbData;
- break;
- case CERT_RDN_PRINTABLE_STRING:
- tag = ASN_PRINTABLESTRING;
- encodedLen = value->Value.cbData;
- break;
- case CERT_RDN_IA5_STRING:
- tag = ASN_IA5STRING;
- encodedLen = value->Value.cbData;
- break;
- case CERT_RDN_ANY_TYPE:
- /* explicitly disallowed */
- SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
- return FALSE;
- default:
- FIXME("String type %ld unimplemented\n", value->dwValueType);
- return FALSE;
- }
- CRYPT_EncodeLen(encodedLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + encodedLen;
- if (pbEncoded)
- {
- if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pbEncoded++ = tag;
- CRYPT_EncodeLen(encodedLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- switch (value->dwValueType)
- {
- case CERT_RDN_NUMERIC_STRING:
- case CERT_RDN_PRINTABLE_STRING:
- case CERT_RDN_IA5_STRING:
- memcpy(pbEncoded, value->Value.pbData, value->Value.cbData);
- }
- }
- }
- *pcbEncoded = bytesNeeded;
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeRdnAttr(DWORD dwCertEncodingType,
- CERT_RDN_ATTR *attr, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- DWORD bytesNeeded = 0, lenBytes, size;
- BOOL ret;
-
- ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL, attr->pszObjId,
- 0, NULL, NULL, &size);
- if (ret)
- {
- bytesNeeded += size;
- /* hack: a CERT_RDN_ATTR is identical to a CERT_NAME_VALUE beginning
- * with dwValueType, so "cast" it to get its encoded size
- */
- ret = CRYPT_AsnEncodeNameValue(dwCertEncodingType,
- (CERT_NAME_VALUE *)&attr->dwValueType, NULL, &size);
- if (ret)
- {
- bytesNeeded += size;
- CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
- bytesNeeded += 1 + lenBytes;
- if (pbEncoded)
- {
- if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pbEncoded++ = ASN_SEQUENCE;
- CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
- &lenBytes);
- pbEncoded += lenBytes;
- size = bytesNeeded - 1 - lenBytes;
- ret = CRYPT_AsnEncodeOid(dwCertEncodingType, NULL,
- attr->pszObjId, 0, NULL, pbEncoded, &size);
- if (ret)
- {
- pbEncoded += size;
- size = bytesNeeded - 1 - lenBytes - size;
- ret = CRYPT_AsnEncodeNameValue(dwCertEncodingType,
- (CERT_NAME_VALUE *)&attr->dwValueType, pbEncoded,
- &size);
- }
- }
- }
- *pcbEncoded = bytesNeeded;
- }
- }
- return ret;
-}
-
-static int BLOBComp(const void *l, const void *r)
-{
- CRYPT_DER_BLOB *a = (CRYPT_DER_BLOB *)l, *b = (CRYPT_DER_BLOB *)r;
- int ret;
-
- if (!(ret = memcmp(a->pbData, b->pbData, min(a->cbData, b->cbData))))
- ret = a->cbData - b->cbData;
- return ret;
-}
-
-/* This encodes as a SET OF, which in DER must be lexicographically sorted.
- */
-static BOOL WINAPI CRYPT_AsnEncodeRdn(DWORD dwCertEncodingType, CERT_RDN *rdn,
- BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- CRYPT_DER_BLOB *blobs = NULL;
-
- __TRY
- {
- DWORD bytesNeeded = 0, lenBytes, i;
-
- blobs = NULL;
- ret = TRUE;
- if (rdn->cRDNAttr)
- {
- blobs = CryptMemAlloc(rdn->cRDNAttr * sizeof(CRYPT_DER_BLOB));
- if (!blobs)
- ret = FALSE;
- else
- memset(blobs, 0, rdn->cRDNAttr * sizeof(CRYPT_DER_BLOB));
- }
- for (i = 0; ret && i < rdn->cRDNAttr; i++)
- {
- ret = CRYPT_AsnEncodeRdnAttr(dwCertEncodingType, &rdn->rgRDNAttr[i],
- NULL, &blobs[i].cbData);
- if (ret)
- bytesNeeded += blobs[i].cbData;
- }
- if (ret)
- {
- CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
- bytesNeeded += 1 + lenBytes;
- if (pbEncoded)
- {
- if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- for (i = 0; ret && i < rdn->cRDNAttr; i++)
- {
- blobs[i].pbData = CryptMemAlloc(blobs[i].cbData);
- if (!blobs[i].pbData)
- ret = FALSE;
- else
- ret = CRYPT_AsnEncodeRdnAttr(dwCertEncodingType,
- &rdn->rgRDNAttr[i], blobs[i].pbData,
- &blobs[i].cbData);
- }
- if (ret)
- {
- qsort(blobs, rdn->cRDNAttr, sizeof(CRYPT_DER_BLOB),
- BLOBComp);
- *pbEncoded++ = ASN_CONSTRUCTOR | ASN_SETOF;
- CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
- &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; ret && i < rdn->cRDNAttr; i++)
- {
- memcpy(pbEncoded, blobs[i].pbData, blobs[i].cbData);
- pbEncoded += blobs[i].cbData;
- }
- }
- }
- }
- *pcbEncoded = bytesNeeded;
- }
- if (blobs)
- {
- for (i = 0; i < rdn->cRDNAttr; i++)
- CryptMemFree(blobs[i].pbData);
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- CryptMemFree(blobs);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_NAME_INFO *info = (const CERT_NAME_INFO *)pvStructInfo;
- DWORD bytesNeeded = 0, lenBytes, size, i;
-
- TRACE("encoding name with %ld RDNs\n", info->cRDN);
- ret = TRUE;
- for (i = 0; ret && i < info->cRDN; i++)
- {
- ret = CRYPT_AsnEncodeRdn(dwCertEncodingType, &info->rgRDN[i], NULL,
- &size);
- if (ret)
- bytesNeeded += size;
- }
- CRYPT_EncodeLen(bytesNeeded, NULL, &lenBytes);
- bytesNeeded += 1 + lenBytes;
- if (ret)
- {
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
- pbEncoded, pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(bytesNeeded - lenBytes - 1, pbEncoded,
- &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; ret && i < info->cRDN; i++)
- {
- size = bytesNeeded;
- ret = CRYPT_AsnEncodeRdn(dwCertEncodingType,
- &info->rgRDN[i], pbEncoded, &size);
- if (ret)
- {
- pbEncoded += size;
- bytesNeeded -= size;
- }
- }
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL val = *(const BOOL *)pvStructInfo, ret;
-
- TRACE("%d\n", val);
-
- if (!pbEncoded)
- {
- *pcbEncoded = 3;
- ret = TRUE;
- }
- else if (*pcbEncoded < 3)
- {
- *pcbEncoded = 3;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pcbEncoded = 3;
- *pbEncoded++ = ASN_BOOL;
- *pbEncoded++ = 1;
- *pbEncoded++ = val ? 0xff : 0;
- ret = TRUE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL CRYPT_AsnEncodeAltNameEntry(const CERT_ALT_NAME_ENTRY *entry,
- BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
- DWORD dataLen;
-
- ret = TRUE;
- switch (entry->dwAltNameChoice)
- {
- case CERT_ALT_NAME_RFC822_NAME:
- case CERT_ALT_NAME_DNS_NAME:
- case CERT_ALT_NAME_URL:
- if (entry->u.pwszURL)
- {
- DWORD i;
-
- /* Not + 1: don't encode the NULL-terminator */
- dataLen = lstrlenW(entry->u.pwszURL);
- for (i = 0; ret && i < dataLen; i++)
- {
- if (entry->u.pwszURL[i] > 0x7f)
- {
- SetLastError(CRYPT_E_INVALID_IA5_STRING);
- ret = FALSE;
- *pcbEncoded = i;
- }
- }
- }
- else
- dataLen = 0;
- break;
- case CERT_ALT_NAME_IP_ADDRESS:
- dataLen = entry->u.IPAddress.cbData;
- break;
- case CERT_ALT_NAME_REGISTERED_ID:
- /* FIXME: encode OID */
- case CERT_ALT_NAME_OTHER_NAME:
- case CERT_ALT_NAME_DIRECTORY_NAME:
- FIXME("name type %ld unimplemented\n", entry->dwAltNameChoice);
- return FALSE;
- default:
- SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
- return FALSE;
- }
- if (ret)
- {
- DWORD bytesNeeded, lenBytes;
-
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + dataLen + lenBytes;
- if (!pbEncoded)
- *pcbEncoded = bytesNeeded;
- else if (*pcbEncoded < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbEncoded = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- *pbEncoded++ = ASN_CONTEXT | (entry->dwAltNameChoice - 1);
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- switch (entry->dwAltNameChoice)
- {
- case CERT_ALT_NAME_RFC822_NAME:
- case CERT_ALT_NAME_DNS_NAME:
- case CERT_ALT_NAME_URL:
- {
- DWORD i;
-
- for (i = 0; i < dataLen; i++)
- *pbEncoded++ = (BYTE)entry->u.pwszURL[i];
- break;
- }
- case CERT_ALT_NAME_IP_ADDRESS:
- memcpy(pbEncoded, entry->u.IPAddress.pbData, dataLen);
- break;
- }
- if (ret)
- *pcbEncoded = bytesNeeded;
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeAltName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_ALT_NAME_INFO *info =
- (const CERT_ALT_NAME_INFO *)pvStructInfo;
- DWORD bytesNeeded, dataLen, lenBytes, i;
-
- ret = TRUE;
- /* FIXME: should check that cAltEntry is not bigger than 0xff, since we
- * can't encode an erroneous entry index if it's bigger than this.
- */
- for (i = 0, dataLen = 0; ret && i < info->cAltEntry; i++)
- {
- DWORD len;
-
- ret = CRYPT_AsnEncodeAltNameEntry(&info->rgAltEntry[i], NULL,
- &len);
- if (ret)
- dataLen += len;
- else if (GetLastError() == CRYPT_E_INVALID_IA5_STRING)
- {
- /* CRYPT_AsnEncodeAltNameEntry encoded the index of
- * the bad character, now set the index of the bad
- * entry
- */
- *pcbEncoded = (BYTE)i <<
- CERT_ALT_NAME_ENTRY_ERR_INDEX_SHIFT | len;
- }
- }
- if (ret)
- {
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
- pbEncoded, pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; ret && i < info->cAltEntry; i++)
- {
- DWORD len = dataLen;
-
- ret = CRYPT_AsnEncodeAltNameEntry(&info->rgAltEntry[i],
- pbEncoded, &len);
- if (ret)
- {
- pbEncoded += len;
- dataLen -= len;
- }
- }
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeBasicConstraints2(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CERT_BASIC_CONSTRAINTS2_INFO *info =
- (const CERT_BASIC_CONSTRAINTS2_INFO *)pvStructInfo;
- struct AsnEncodeSequenceItem items[2] = { { 0 } };
- DWORD cItem = 0;
-
- if (info->fCA)
- {
- items[cItem].pvStructInfo = &info->fCA;
- items[cItem].encodeFunc = CRYPT_AsnEncodeBool;
- cItem++;
- }
- if (info->fPathLenConstraint)
- {
- items[cItem].pvStructInfo = &info->dwPathLenConstraint;
- items[cItem].encodeFunc = CRYPT_AsnEncodeInt;
- cItem++;
- }
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items, cItem,
- dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeRsaPubKey(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const BLOBHEADER *hdr =
- (const BLOBHEADER *)pvStructInfo;
-
- if (hdr->bType != PUBLICKEYBLOB)
- {
- SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
- ret = FALSE;
- }
- else
- {
- const RSAPUBKEY *rsaPubKey = (const RSAPUBKEY *)
- ((const BYTE *)pvStructInfo + sizeof(BLOBHEADER));
- CRYPT_INTEGER_BLOB blob = { rsaPubKey->bitlen / 8,
- (BYTE *)pvStructInfo + sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) };
- struct AsnEncodeSequenceItem items[] = {
- { &blob, CRYPT_AsnEncodeUnsignedInteger, 0 },
- { &rsaPubKey->pubexp, CRYPT_AsnEncodeInt, 0 },
- };
-
- ret = CRYPT_AsnEncodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeOctets(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CRYPT_DATA_BLOB *blob = (const CRYPT_DATA_BLOB *)pvStructInfo;
- DWORD bytesNeeded, lenBytes;
-
- TRACE("(%ld, %p), %08lx, %p, %p, %ld\n", blob->cbData, blob->pbData,
- dwFlags, pEncodePara, pbEncoded, *pcbEncoded);
-
- CRYPT_EncodeLen(blob->cbData, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + blob->cbData;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_OCTETSTRING;
- CRYPT_EncodeLen(blob->cbData, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- if (blob->cbData)
- memcpy(pbEncoded, blob->pbData, blob->cbData);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CRYPT_BIT_BLOB *blob = (const CRYPT_BIT_BLOB *)pvStructInfo;
- DWORD bytesNeeded, lenBytes, dataBytes;
- BYTE unusedBits;
-
- /* yep, MS allows cUnusedBits to be >= 8 */
- if (!blob->cUnusedBits)
- {
- dataBytes = blob->cbData;
- unusedBits = 0;
- }
- else if (blob->cbData * 8 > blob->cUnusedBits)
- {
- dataBytes = (blob->cbData * 8 - blob->cUnusedBits) / 8 + 1;
- unusedBits = blob->cUnusedBits >= 8 ? blob->cUnusedBits / 8 :
- blob->cUnusedBits;
- }
- else
- {
- dataBytes = 0;
- unusedBits = 0;
- }
- CRYPT_EncodeLen(dataBytes + 1, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataBytes + 1;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_BITSTRING;
- CRYPT_EncodeLen(dataBytes + 1, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- *pbEncoded++ = unusedBits;
- if (dataBytes)
- {
- BYTE mask = 0xff << unusedBits;
-
- if (dataBytes > 1)
- {
- memcpy(pbEncoded, blob->pbData, dataBytes - 1);
- pbEncoded += dataBytes - 1;
- }
- *pbEncoded = *(blob->pbData + dataBytes - 1) & mask;
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeBitsSwapBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CRYPT_BIT_BLOB *blob = (const CRYPT_BIT_BLOB *)pvStructInfo;
- CRYPT_BIT_BLOB newBlob = { blob->cbData, NULL, blob->cUnusedBits };
-
- ret = TRUE;
- if (newBlob.cbData)
- {
- newBlob.pbData = CryptMemAlloc(newBlob.cbData);
- if (newBlob.pbData)
- {
- DWORD i;
-
- for (i = 0; i < newBlob.cbData; i++)
- newBlob.pbData[newBlob.cbData - i - 1] = blob->pbData[i];
- }
- else
- ret = FALSE;
- }
- if (ret)
- ret = CRYPT_AsnEncodeBits(dwCertEncodingType, lpszStructType,
- &newBlob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- CryptMemFree(newBlob.pbData);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- CRYPT_INTEGER_BLOB blob = { sizeof(INT), (BYTE *)pvStructInfo };
-
- return CRYPT_AsnEncodeInteger(dwCertEncodingType, X509_MULTI_BYTE_INTEGER,
- &blob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD significantBytes, lenBytes;
- BYTE padByte = 0, bytesNeeded;
- BOOL pad = FALSE;
- const CRYPT_INTEGER_BLOB *blob =
- (const CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- significantBytes = blob->cbData;
- if (significantBytes)
- {
- if (blob->pbData[significantBytes - 1] & 0x80)
- {
- /* negative, lop off leading (little-endian) 0xffs */
- for (; significantBytes > 0 &&
- blob->pbData[significantBytes - 1] == 0xff; significantBytes--)
- ;
- if (blob->pbData[significantBytes - 1] < 0x80)
- {
- padByte = 0xff;
- pad = TRUE;
- }
- }
- else
- {
- /* positive, lop off leading (little-endian) zeroes */
- for (; significantBytes > 0 &&
- !blob->pbData[significantBytes - 1]; significantBytes--)
- ;
- if (significantBytes == 0)
- significantBytes = 1;
- if (blob->pbData[significantBytes - 1] > 0x7f)
- {
- padByte = 0;
- pad = TRUE;
- }
- }
- }
- if (pad)
- CRYPT_EncodeLen(significantBytes + 1, NULL, &lenBytes);
- else
- CRYPT_EncodeLen(significantBytes, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + significantBytes;
- if (pad)
- bytesNeeded++;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_INTEGER;
- if (pad)
- {
- CRYPT_EncodeLen(significantBytes + 1, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- *pbEncoded++ = padByte;
- }
- else
- {
- CRYPT_EncodeLen(significantBytes, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- }
- for (; significantBytes > 0; significantBytes--)
- *(pbEncoded++) = blob->pbData[significantBytes - 1];
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeUnsignedInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD significantBytes, lenBytes;
- BYTE bytesNeeded;
- BOOL pad = FALSE;
- const CRYPT_INTEGER_BLOB *blob =
- (const CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- significantBytes = blob->cbData;
- if (significantBytes)
- {
- /* positive, lop off leading (little-endian) zeroes */
- for (; significantBytes > 0 && !blob->pbData[significantBytes - 1];
- significantBytes--)
- ;
- if (significantBytes == 0)
- significantBytes = 1;
- if (blob->pbData[significantBytes - 1] > 0x7f)
- pad = TRUE;
- }
- if (pad)
- CRYPT_EncodeLen(significantBytes + 1, NULL, &lenBytes);
- else
- CRYPT_EncodeLen(significantBytes, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + significantBytes;
- if (pad)
- bytesNeeded++;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_INTEGER;
- if (pad)
- {
- CRYPT_EncodeLen(significantBytes + 1, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- *pbEncoded++ = 0;
- }
- else
- {
- CRYPT_EncodeLen(significantBytes, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- }
- for (; significantBytes > 0; significantBytes--)
- *(pbEncoded++) = blob->pbData[significantBytes - 1];
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeEnumerated(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- CRYPT_INTEGER_BLOB blob;
- BOOL ret;
-
- /* Encode as an unsigned integer, then change the tag to enumerated */
- blob.cbData = sizeof(DWORD);
- blob.pbData = (BYTE *)pvStructInfo;
- ret = CRYPT_AsnEncodeUnsignedInteger(dwCertEncodingType,
- X509_MULTI_BYTE_UINT, &blob, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- if (ret && pbEncoded)
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- pbEncoded[0] = ASN_ENUMERATED;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeUtcTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- SYSTEMTIME sysTime;
- /* sorry, magic number: enough for tag, len, YYMMDDHHMMSSZ\0. I use a
- * temporary buffer because the output buffer is not NULL-terminated.
- */
- char buf[16];
- static const DWORD bytesNeeded = sizeof(buf) - 1;
-
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- /* Sanity check the year, this is a two-digit year format */
- ret = FileTimeToSystemTime((const FILETIME *)pvStructInfo,
- &sysTime);
- if (ret && (sysTime.wYear < 1950 || sysTime.wYear > 2050))
- {
- SetLastError(CRYPT_E_BAD_ENCODE);
- ret = FALSE;
- }
- if (ret)
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
- pbEncoded, pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- buf[0] = ASN_UTCTIME;
- buf[1] = bytesNeeded - 2;
- snprintf(buf + 2, sizeof(buf) - 2,
- "%02d%02d%02d%02d%02d%02dZ", sysTime.wYear >= 2000 ?
- sysTime.wYear - 2000 : sysTime.wYear - 1900,
- sysTime.wDay, sysTime.wMonth, sysTime.wHour,
- sysTime.wMinute, sysTime.wSecond);
- memcpy(pbEncoded, buf, bytesNeeded);
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeGeneralizedTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- SYSTEMTIME sysTime;
- /* sorry, magic number: enough for tag, len, YYYYMMDDHHMMSSZ\0. I use a
- * temporary buffer because the output buffer is not NULL-terminated.
- */
- char buf[18];
- static const DWORD bytesNeeded = sizeof(buf) - 1;
-
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- ret = FileTimeToSystemTime((const FILETIME *)pvStructInfo,
- &sysTime);
- if (ret)
- ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded);
- if (ret)
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- buf[0] = ASN_GENERALTIME;
- buf[1] = bytesNeeded - 2;
- snprintf(buf + 2, sizeof(buf) - 2, "%04d%02d%02d%02d%02d%02dZ",
- sysTime.wYear, sysTime.wDay, sysTime.wMonth, sysTime.wHour,
- sysTime.wMinute, sysTime.wSecond);
- memcpy(pbEncoded, buf, bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- SYSTEMTIME sysTime;
-
- /* Check the year, if it's in the UTCTime range call that encode func */
- if (!FileTimeToSystemTime((const FILETIME *)pvStructInfo, &sysTime))
- return FALSE;
- if (sysTime.wYear >= 1950 && sysTime.wYear <= 2050)
- ret = CRYPT_AsnEncodeUtcTime(dwCertEncodingType, lpszStructType,
- pvStructInfo, dwFlags, pEncodePara, pbEncoded, pcbEncoded);
- else
- ret = CRYPT_AsnEncodeGeneralizedTime(dwCertEncodingType,
- lpszStructType, pvStructInfo, dwFlags, pEncodePara, pbEncoded,
- pcbEncoded);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeSequenceOfAny(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded, dataLen, lenBytes, i;
- const CRYPT_SEQUENCE_OF_ANY *seq =
- (const CRYPT_SEQUENCE_OF_ANY *)pvStructInfo;
-
- for (i = 0, dataLen = 0; i < seq->cValue; i++)
- dataLen += seq->rgValue[i].cbData;
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara, pbEncoded,
- pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; i < seq->cValue; i++)
- {
- memcpy(pbEncoded, seq->rgValue[i].pbData,
- seq->rgValue[i].cbData);
- pbEncoded += seq->rgValue[i].cbData;
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL CRYPT_AsnEncodeDistPoint(const CRL_DIST_POINT *distPoint,
- BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret = TRUE;
- struct AsnEncodeSequenceItem items[3] = { { 0 } };
- struct AsnConstructedItem constructed = { 0 };
- struct AsnEncodeTagSwappedItem swapped[3] = { { 0 } };
- DWORD cItem = 0, cSwapped = 0;
-
- switch (distPoint->DistPointName.dwDistPointNameChoice)
- {
- case CRL_DIST_POINT_NO_NAME:
- /* do nothing */
- break;
- case CRL_DIST_POINT_FULL_NAME:
- swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 0;
- swapped[cSwapped].pvStructInfo = &distPoint->DistPointName.u.FullName;
- swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeAltName;
- constructed.tag = 0;
- constructed.pvStructInfo = &swapped[cSwapped];
- constructed.encodeFunc = CRYPT_AsnEncodeSwapTag;
- items[cItem].pvStructInfo = &constructed;
- items[cItem].encodeFunc = CRYPT_AsnEncodeConstructed;
- cSwapped++;
- cItem++;
- break;
- case CRL_DIST_POINT_ISSUER_RDN_NAME:
- FIXME("unimplemented for CRL_DIST_POINT_ISSUER_RDN_NAME\n");
- ret = FALSE;
- break;
- default:
- ret = FALSE;
- }
- if (ret && distPoint->ReasonFlags.cbData)
- {
- swapped[cSwapped].tag = ASN_CONTEXT | 1;
- swapped[cSwapped].pvStructInfo = &distPoint->ReasonFlags;
- swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeBits;
- items[cItem].pvStructInfo = &swapped[cSwapped];
- items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
- cSwapped++;
- cItem++;
- }
- if (ret && distPoint->CRLIssuer.cAltEntry)
- {
- swapped[cSwapped].tag = ASN_CONTEXT | ASN_CONSTRUCTOR | 2;
- swapped[cSwapped].pvStructInfo = &distPoint->CRLIssuer;
- swapped[cSwapped].encodeFunc = CRYPT_AsnEncodeAltName;
- items[cItem].pvStructInfo = &swapped[cSwapped];
- items[cItem].encodeFunc = CRYPT_AsnEncodeSwapTag;
- cSwapped++;
- cItem++;
- }
- if (ret)
- ret = CRYPT_AsnEncodeSequence(X509_ASN_ENCODING, items, cItem, 0, NULL,
- pbEncoded, pcbEncoded);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnEncodeCRLDistPoints(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const void *pvStructInfo, DWORD dwFlags,
- PCRYPT_ENCODE_PARA pEncodePara, BYTE *pbEncoded, DWORD *pcbEncoded)
-{
- BOOL ret;
-
- __TRY
- {
- const CRL_DIST_POINTS_INFO *info =
- (const CRL_DIST_POINTS_INFO *)pvStructInfo;
-
- if (!info->cDistPoint)
- {
- SetLastError(HRESULT_FROM_WIN32(ERROR_INVALID_PARAMETER));
- ret = FALSE;
- }
- else
- {
- DWORD bytesNeeded, dataLen, lenBytes, i;
-
- ret = TRUE;
- for (i = 0, dataLen = 0; ret && i < info->cDistPoint; i++)
- {
- DWORD len;
-
- ret = CRYPT_AsnEncodeDistPoint(&info->rgDistPoint[i], NULL,
- &len);
- if (ret)
- dataLen += len;
- else if (GetLastError() == CRYPT_E_INVALID_IA5_STRING)
- {
- /* Have to propagate index of failing character */
- *pcbEncoded = len;
- }
- }
- if (ret)
- {
- CRYPT_EncodeLen(dataLen, NULL, &lenBytes);
- bytesNeeded = 1 + lenBytes + dataLen;
- if (!pbEncoded)
- {
- *pcbEncoded = bytesNeeded;
- ret = TRUE;
- }
- else
- {
- if ((ret = CRYPT_EncodeEnsureSpace(dwFlags, pEncodePara,
- pbEncoded, pcbEncoded, bytesNeeded)))
- {
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG)
- pbEncoded = *(BYTE **)pbEncoded;
- *pbEncoded++ = ASN_SEQUENCEOF;
- CRYPT_EncodeLen(dataLen, pbEncoded, &lenBytes);
- pbEncoded += lenBytes;
- for (i = 0; ret && i < info->cDistPoint; i++)
- {
- DWORD len = dataLen;
-
- ret = CRYPT_AsnEncodeDistPoint(
- &info->rgDistPoint[i], pbEncoded, &len);
- if (ret)
- {
- pbEncoded += len;
- dataLen -= len;
- }
- }
- }
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-BOOL WINAPI CryptEncodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const void *pvStructInfo, DWORD dwFlags, PCRYPT_ENCODE_PARA pEncodePara,
- void *pvEncoded, DWORD *pcbEncoded)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- CryptEncodeObjectExFunc encodeFunc = NULL;
- HCRYPTOIDFUNCADDR hFunc = NULL;
-
- TRACE("(0x%08lx, %s, %p, 0x%08lx, %p, %p, %p)\n", dwCertEncodingType,
- debugstr_a(lpszStructType), pvStructInfo, dwFlags, pEncodePara,
- pvEncoded, pcbEncoded);
-
- if (!pvEncoded && !pcbEncoded)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
- if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING
- && (dwCertEncodingType & CMSG_ENCODING_TYPE_MASK) != PKCS_7_ASN_ENCODING)
- {
- SetLastError(ERROR_FILE_NOT_FOUND);
- return FALSE;
- }
-
- SetLastError(NOERROR);
- if (dwFlags & CRYPT_ENCODE_ALLOC_FLAG && pvEncoded)
- *(BYTE **)pvEncoded = NULL;
- if (!HIWORD(lpszStructType))
- {
- switch (LOWORD(lpszStructType))
- {
- case (WORD)X509_CERT:
- encodeFunc = CRYPT_AsnEncodeCert;
- break;
- case (WORD)X509_CERT_TO_BE_SIGNED:
- encodeFunc = CRYPT_AsnEncodeCertInfo;
- break;
- case (WORD)X509_CERT_CRL_TO_BE_SIGNED:
- encodeFunc = CRYPT_AsnEncodeCRLInfo;
- break;
- case (WORD)X509_EXTENSIONS:
- encodeFunc = CRYPT_AsnEncodeExtensions;
- break;
- case (WORD)X509_NAME:
- encodeFunc = CRYPT_AsnEncodeName;
- break;
- case (WORD)X509_PUBLIC_KEY_INFO:
- encodeFunc = CRYPT_AsnEncodePubKeyInfo;
- break;
- case (WORD)X509_ALTERNATE_NAME:
- encodeFunc = CRYPT_AsnEncodeAltName;
- break;
- case (WORD)X509_BASIC_CONSTRAINTS2:
- encodeFunc = CRYPT_AsnEncodeBasicConstraints2;
- break;
- case (WORD)RSA_CSP_PUBLICKEYBLOB:
- encodeFunc = CRYPT_AsnEncodeRsaPubKey;
- break;
- case (WORD)X509_OCTET_STRING:
- encodeFunc = CRYPT_AsnEncodeOctets;
- break;
- case (WORD)X509_BITS:
- case (WORD)X509_KEY_USAGE:
- encodeFunc = CRYPT_AsnEncodeBits;
- break;
- case (WORD)X509_INTEGER:
- encodeFunc = CRYPT_AsnEncodeInt;
- break;
- case (WORD)X509_MULTI_BYTE_INTEGER:
- encodeFunc = CRYPT_AsnEncodeInteger;
- break;
- case (WORD)X509_MULTI_BYTE_UINT:
- encodeFunc = CRYPT_AsnEncodeUnsignedInteger;
- break;
- case (WORD)X509_ENUMERATED:
- encodeFunc = CRYPT_AsnEncodeEnumerated;
- break;
- case (WORD)X509_CHOICE_OF_TIME:
- encodeFunc = CRYPT_AsnEncodeChoiceOfTime;
- break;
- case (WORD)X509_SEQUENCE_OF_ANY:
- encodeFunc = CRYPT_AsnEncodeSequenceOfAny;
- break;
- case (WORD)PKCS_UTC_TIME:
- encodeFunc = CRYPT_AsnEncodeUtcTime;
- break;
- case (WORD)X509_CRL_DIST_POINTS:
- encodeFunc = CRYPT_AsnEncodeCRLDistPoints;
- break;
- default:
- FIXME("%d: unimplemented\n", LOWORD(lpszStructType));
- }
- }
- else if (!strcmp(lpszStructType, szOID_CERT_EXTENSIONS))
- encodeFunc = CRYPT_AsnEncodeExtensions;
- else if (!strcmp(lpszStructType, szOID_RSA_signingTime))
- encodeFunc = CRYPT_AsnEncodeUtcTime;
- else if (!strcmp(lpszStructType, szOID_CRL_REASON_CODE))
- encodeFunc = CRYPT_AsnEncodeEnumerated;
- else if (!strcmp(lpszStructType, szOID_KEY_USAGE))
- encodeFunc = CRYPT_AsnEncodeBits;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_KEY_IDENTIFIER))
- encodeFunc = CRYPT_AsnEncodeOctets;
- else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS2))
- encodeFunc = CRYPT_AsnEncodeBasicConstraints2;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME))
- encodeFunc = CRYPT_AsnEncodeAltName;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME2))
- encodeFunc = CRYPT_AsnEncodeAltName;
- else if (!strcmp(lpszStructType, szOID_NEXT_UPDATE_LOCATION))
- encodeFunc = CRYPT_AsnEncodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME))
- encodeFunc = CRYPT_AsnEncodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME2))
- encodeFunc = CRYPT_AsnEncodeAltName;
- else
- TRACE("OID %s not found or unimplemented, looking for DLL\n",
- debugstr_a(lpszStructType));
- if (!encodeFunc)
- {
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_ENCODE_OBJECT_EX_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&encodeFunc, &hFunc);
- }
- if (encodeFunc)
- ret = encodeFunc(dwCertEncodingType, lpszStructType, pvStructInfo,
- dwFlags, pEncodePara, pvEncoded, pcbEncoded);
- else
- SetLastError(ERROR_FILE_NOT_FOUND);
- if (hFunc)
- CryptFreeOIDFunctionAddress(hFunc, 0);
- return ret;
-}
-
-BOOL WINAPI CryptDecodeObject(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo,
- DWORD *pcbStructInfo)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- CryptDecodeObjectFunc pCryptDecodeObject;
- HCRYPTOIDFUNCADDR hFunc;
-
- TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p)\n", dwCertEncodingType,
- debugstr_a(lpszStructType), pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, pcbStructInfo);
-
- if (!pvStructInfo && !pcbStructInfo)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
-
- /* Try registered DLL first.. */
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&pCryptDecodeObject, &hFunc);
- if (pCryptDecodeObject)
- {
- ret = pCryptDecodeObject(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags, pvStructInfo, pcbStructInfo);
- CryptFreeOIDFunctionAddress(hFunc, 0);
- }
- else
- {
- /* If not, use CryptDecodeObjectEx */
- ret = CryptDecodeObjectEx(dwCertEncodingType, lpszStructType, pbEncoded,
- cbEncoded, dwFlags, NULL, pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-/* Gets the number of length bytes from the given (leading) length byte */
-#define GET_LEN_BYTES(b) ((b) <= 0x7f ? 1 : 1 + ((b) & 0x7f))
-
-/* Helper function to get the encoded length of the data starting at pbEncoded,
- * where pbEncoded[0] is the tag. If the data are too short to contain a
- * length or if the length is too large for cbEncoded, sets an appropriate
- * error code and returns FALSE.
- */
-static BOOL WINAPI CRYPT_GetLen(const BYTE *pbEncoded, DWORD cbEncoded,
- DWORD *len)
-{
- BOOL ret;
-
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (pbEncoded[1] <= 0x7f)
- {
- if (pbEncoded[1] + 1 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else
- {
- *len = pbEncoded[1];
- ret = TRUE;
- }
- }
- else
- {
- BYTE lenLen = GET_LEN_BYTES(pbEncoded[1]);
-
- if (lenLen > sizeof(DWORD) + 1)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- ret = FALSE;
- }
- else if (lenLen + 2 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- DWORD out = 0;
-
- pbEncoded += 2;
- while (--lenLen)
- {
- out <<= 8;
- out |= *pbEncoded++;
- }
- if (out + lenLen + 1 > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else
- {
- *len = out;
- ret = TRUE;
- }
- }
- }
- return ret;
-}
-
-/* Helper function to check *pcbStructInfo, set it to the required size, and
- * optionally to allocate memory. Assumes pvStructInfo is not NULL.
- * If CRYPT_DECODE_ALLOC_FLAG is set in dwFlags, *pvStructInfo will be set to a
- * pointer to the newly allocated memory.
- */
-static BOOL CRYPT_DecodeEnsureSpace(DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
- DWORD bytesNeeded)
-{
- BOOL ret = TRUE;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- {
- if (pDecodePara && pDecodePara->pfnAlloc)
- *(BYTE **)pvStructInfo = pDecodePara->pfnAlloc(bytesNeeded);
- else
- *(BYTE **)pvStructInfo = LocalAlloc(0, bytesNeeded);
- if (!*(BYTE **)pvStructInfo)
- ret = FALSE;
- else
- *pcbStructInfo = bytesNeeded;
- }
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- return ret;
-}
-
-/* tag:
- * The expected tag of the item. If tag is 0, decodeFunc is called
- * regardless of the tag value seen.
- * offset:
- * A sequence is decoded into a struct. The offset member is the
- * offset of this item within that struct.
- * decodeFunc:
- * The decoder function to use. If this is NULL, then the member isn't
- * decoded, but minSize space is reserved for it.
- * minSize:
- * The minimum amount of space occupied after decoding. You must set this.
- * optional:
- * If true, and the tag doesn't match the expected tag for this item,
- * or the decodeFunc fails with CRYPT_E_ASN1_BADTAG, then minSize space is
- * filled with 0 for this member.
- * hasPointer, pointerOffset, minSize:
- * If the item has dynamic data, set hasPointer to TRUE, pointerOffset to
- * the offset within the (outer) struct of the data pointer (or to the
- * first data pointer, if more than one exist).
- * size:
- * Used by CRYPT_AsnDecodeSequence, not for your use.
- */
-struct AsnDecodeSequenceItem
-{
- BYTE tag;
- DWORD offset;
- CryptDecodeObjectExFunc decodeFunc;
- DWORD minSize;
- BOOL optional;
- BOOL hasPointer;
- DWORD pointerOffset;
- DWORD size;
-};
-
-static BOOL CRYPT_AsnDecodeSequenceItems(DWORD dwCertEncodingType,
- struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, void *pvStructInfo, BYTE *nextData)
-{
- BOOL ret;
- DWORD i;
- const BYTE *ptr;
-
- ptr = pbEncoded + 1 + GET_LEN_BYTES(pbEncoded[1]);
- for (i = 0, ret = TRUE; ret && i < cItem; i++)
- {
- if (cbEncoded - (ptr - pbEncoded) != 0)
- {
- DWORD nextItemLen;
-
- if ((ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
- &nextItemLen)))
- {
- BYTE nextItemLenBytes = GET_LEN_BYTES(ptr[1]);
-
- if (ptr[0] == items[i].tag || !items[i].tag)
- {
- if (nextData && pvStructInfo && items[i].hasPointer)
- {
- TRACE("Setting next pointer to %p\n",
- nextData);
- *(BYTE **)((BYTE *)pvStructInfo +
- items[i].pointerOffset) = nextData;
- }
- if (items[i].decodeFunc)
- {
- if (pvStructInfo)
- TRACE("decoding item %ld\n", i);
- else
- TRACE("sizing item %ld\n", i);
- ret = items[i].decodeFunc(dwCertEncodingType,
- NULL, ptr, 1 + nextItemLenBytes + nextItemLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
- pvStructInfo ? (BYTE *)pvStructInfo + items[i].offset
- : NULL, &items[i].size);
- if (ret)
- {
- if (nextData && items[i].hasPointer &&
- items[i].size > items[i].minSize)
- {
- nextData += items[i].size - items[i].minSize;
- /* align nextData to DWORD boundaries */
- if (items[i].size % sizeof(DWORD))
- nextData += sizeof(DWORD) - items[i].size %
- sizeof(DWORD);
- }
- /* Account for alignment padding */
- if (items[i].size % sizeof(DWORD))
- items[i].size += sizeof(DWORD) -
- items[i].size % sizeof(DWORD);
- ptr += 1 + nextItemLenBytes + nextItemLen;
- }
- else if (items[i].optional &&
- GetLastError() == CRYPT_E_ASN1_BADTAG)
- {
- TRACE("skipping optional item %ld\n", i);
- items[i].size = items[i].minSize;
- SetLastError(NOERROR);
- ret = TRUE;
- }
- else
- TRACE("item %ld failed: %08lx\n", i,
- GetLastError());
- }
- else
- items[i].size = items[i].minSize;
- }
- else if (items[i].optional)
- {
- TRACE("skipping optional item %ld\n", i);
- items[i].size = items[i].minSize;
- }
- else
- {
- TRACE("tag %02x doesn't match expected %02x\n",
- ptr[0], items[i].tag);
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- }
- else if (items[i].optional)
- {
- TRACE("missing optional item %ld, skipping\n", i);
- items[i].size = items[i].minSize;
- }
- else
- {
- TRACE("not enough bytes for item %ld, failing\n", i);
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- if (cbEncoded - (ptr - pbEncoded) != 0)
- {
- TRACE("%ld remaining bytes, failing\n", cbEncoded -
- (ptr - pbEncoded));
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- return ret;
-}
-
-/* This decodes an arbitrary sequence into a contiguous block of memory
- * (basically, a struct.) Each element being decoded is described by a struct
- * AsnDecodeSequenceItem, see above.
- * startingPointer is an optional pointer to the first place where dynamic
- * data will be stored. If you know the starting offset, you may pass it
- * here. Otherwise, pass NULL, and one will be inferred from the items.
- * Each item decoder is never called with CRYPT_DECODE_ALLOC_FLAG set.
- * If any undecoded data are left over, fails with CRYPT_E_ASN1_CORRUPT.
- */
-static BOOL CRYPT_AsnDecodeSequence(DWORD dwCertEncodingType,
- struct AsnDecodeSequenceItem items[], DWORD cItem, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo, void *startingPointer)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %p, %ld, %08lx, %p, %p, %ld, %p\n", items, cItem, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
- startingPointer);
-
- if (pbEncoded[0] == ASN_SEQUENCE)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- DWORD i;
-
- ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem, pbEncoded,
- cbEncoded, dwFlags, NULL, NULL);
- if (ret)
- {
- DWORD bytesNeeded = 0, structSize = 0;
-
- for (i = 0; i < cItem; i++)
- {
- bytesNeeded += items[i].size;
- structSize += items[i].minSize;
- }
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- BYTE *nextData;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- if (startingPointer)
- nextData = (BYTE *)startingPointer;
- else
- nextData = (BYTE *)pvStructInfo + structSize;
- memset(pvStructInfo, 0, structSize);
- ret = CRYPT_AsnDecodeSequenceItems(dwFlags, items, cItem,
- pbEncoded, cbEncoded, dwFlags, pvStructInfo, nextData);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-/* tag:
- * The expected tag of the entire encoded array (usually a variant
- * of ASN_SETOF or ASN_SEQUENCEOF.)
- * decodeFunc:
- * used to decode each item in the array
- * itemSize:
- * is the minimum size of each decoded item
- * hasPointer:
- * indicates whether each item has a dynamic pointer
- * pointerOffset:
- * indicates the offset within itemSize at which the pointer exists
- */
-struct AsnArrayDescriptor
-{
- BYTE tag;
- CryptDecodeObjectExFunc decodeFunc;
- DWORD itemSize;
- BOOL hasPointer;
- DWORD pointerOffset;
-};
-
-struct AsnArrayItemSize
-{
- DWORD encodedLen;
- DWORD size;
-};
-
-struct GenericArray
-{
- DWORD cItems;
- BYTE *rgItems;
-};
-
-/* Decodes an array of like types into a struct GenericArray.
- * The layout and decoding of the array are described by a struct
- * AsnArrayDescriptor.
- */
-static BOOL CRYPT_AsnDecodeArray(const struct AsnArrayDescriptor *arrayDesc,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo,
- void *startingPointer)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %p, %ld, %08lx, %p, %p, %ld, %p\n", arrayDesc, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, *pcbStructInfo,
- startingPointer);
-
- if (pbEncoded[0] == arrayDesc->tag)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- DWORD bytesNeeded, cItems = 0;
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- /* There can be arbitrarily many items, but there is often only one.
- */
- struct AsnArrayItemSize itemSize = { 0 }, *itemSizes = &itemSize;
-
- bytesNeeded = sizeof(struct GenericArray);
- if (dataLen)
- {
- const BYTE *ptr;
-
- for (ptr = pbEncoded + 1 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- DWORD itemLenBytes, itemDataLen, size;
-
- itemLenBytes = GET_LEN_BYTES(ptr[1]);
- /* Each item decoded may not tolerate extraneous bytes, so
- * get the length of the next element and pass it directly.
- */
- ret = CRYPT_GetLen(ptr, cbEncoded - (ptr - pbEncoded),
- &itemDataLen);
- if (ret)
- ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
- 1 + itemLenBytes + itemDataLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL,
- &size);
- if (ret)
- {
- DWORD nextLen;
-
- cItems++;
- if (itemSizes != &itemSize)
- itemSizes = CryptMemRealloc(itemSizes,
- cItems * sizeof(struct AsnArrayItemSize));
- else
- {
- itemSizes =
- CryptMemAlloc(
- cItems * sizeof(struct AsnArrayItemSize));
- memcpy(itemSizes, &itemSize, sizeof(itemSize));
- }
- if (itemSizes)
- {
- itemSizes[cItems - 1].encodedLen = 1 + itemLenBytes
- + itemDataLen;
- itemSizes[cItems - 1].size = size;
- bytesNeeded += size;
- ret = CRYPT_GetLen(ptr,
- cbEncoded - (ptr - pbEncoded), &nextLen);
- if (ret)
- ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
- }
- else
- ret = FALSE;
- }
- }
- }
- if (ret)
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- DWORD i;
- BYTE *nextData;
- const BYTE *ptr;
- struct GenericArray *array;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- array = (struct GenericArray *)pvStructInfo;
- array->cItems = cItems;
- if (startingPointer)
- array->rgItems = startingPointer;
- else
- array->rgItems = (BYTE *)array +
- sizeof(struct GenericArray);
- nextData = (BYTE *)array->rgItems +
- array->cItems * arrayDesc->itemSize;
- for (i = 0, ptr = pbEncoded + 1 + lenBytes; ret &&
- i < cItems && ptr - pbEncoded - 1 - lenBytes <
- dataLen; i++)
- {
- if (arrayDesc->hasPointer)
- *(BYTE **)(array->rgItems + i * arrayDesc->itemSize
- + arrayDesc->pointerOffset) = nextData;
- ret = arrayDesc->decodeFunc(X509_ASN_ENCODING, 0, ptr,
- itemSizes[i].encodedLen,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL,
- array->rgItems + i * arrayDesc->itemSize,
- &itemSizes[i].size);
- if (ret)
- {
- DWORD nextLen;
-
- nextData += itemSizes[i].size - arrayDesc->itemSize;
- ret = CRYPT_GetLen(ptr,
- cbEncoded - (ptr - pbEncoded), &nextLen);
- if (ret)
- ptr += nextLen + 1 + GET_LEN_BYTES(ptr[1]);
- }
- }
- }
- }
- if (itemSizes != &itemSize)
- CryptMemFree(itemSizes);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-/* Decodes a DER-encoded BLOB into a CRYPT_DER_BLOB struct pointed to by
- * pvStructInfo. The BLOB must be non-empty, otherwise the last error is set
- * to CRYPT_E_ASN1_CORRUPT.
- * Warning: assumes the CRYPT_DER_BLOB pointed to by pvStructInfo has pbData
- * set!
- */
-static BOOL WINAPI CRYPT_AsnDecodeDerBlob(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- DWORD bytesNeeded = sizeof(CRYPT_DER_BLOB);
-
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += 1 + lenBytes + dataLen;
-
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_DER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_DER_BLOB *)pvStructInfo;
- blob->cbData = 1 + lenBytes + dataLen;
- if (blob->cbData)
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (BYTE *)pbEncoded;
- else
- {
- assert(blob->pbData);
- memcpy(blob->pbData, pbEncoded, blob->cbData);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- }
- return ret;
-}
-
-/* Like CRYPT_AsnDecodeBitsInternal, but swaps the bytes */
-static BOOL WINAPI CRYPT_AsnDecodeBitsSwapBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- /* Can't use the CRYPT_DECODE_NOCOPY_FLAG, because we modify the bytes in-
- * place.
- */
- ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags & ~CRYPT_DECODE_NOCOPY_FLAG, pDecodePara,
- pvStructInfo, pcbStructInfo);
- if (ret && pvStructInfo)
- {
- CRYPT_BIT_BLOB *blob = (CRYPT_BIT_BLOB *)pvStructInfo;
-
- if (blob->cbData)
- {
- DWORD i;
- BYTE temp;
-
- for (i = 0; i < blob->cbData / 2; i++)
- {
- temp = blob->pbData[i];
- blob->pbData[i] = blob->pbData[blob->cbData - i - 1];
- blob->pbData[blob->cbData - i - 1] = temp;
- }
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCert(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { 0, offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned),
- CRYPT_AsnDecodeDerBlob, sizeof(CRYPT_DER_BLOB), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, ToBeSigned.pbData), 0 },
- { ASN_SEQUENCEOF, offsetof(CERT_SIGNED_CONTENT_INFO,
- SignatureAlgorithm), CRYPT_AsnDecodeAlgorithmId,
- sizeof(CRYPT_ALGORITHM_IDENTIFIER), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, SignatureAlgorithm.pszObjId), 0 },
- { ASN_BITSTRING, offsetof(CERT_SIGNED_CONTENT_INFO, Signature),
- CRYPT_AsnDecodeBitsSwapBytes, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
- offsetof(CERT_SIGNED_CONTENT_INFO, Signature.pbData), 0 },
- };
-
- if (dwFlags & CRYPT_DECODE_NO_SIGNATURE_BYTE_REVERSAL_FLAG)
- items[2].decodeFunc = CRYPT_AsnDecodeBitsInternal;
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeCertVersion(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
- pbEncoded + 1 + lenBytes, dataLen, dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeValidity(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- struct AsnDecodeSequenceItem items[] = {
- { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotBefore),
- CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
- { 0, offsetof(CERT_PRIVATE_KEY_VALIDITY, NotAfter),
- CRYPT_AsnDecodeChoiceOfTime, sizeof(FILETIME), FALSE, FALSE, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- return ret;
-}
-
-/* Internal function */
-static BOOL WINAPI CRYPT_AsnDecodeCertExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- X509_EXTENSIONS, pbEncoded + 1 + lenBytes, dataLen, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo);
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCertInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CERT_INFO, dwVersion),
- CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
- { ASN_INTEGER, offsetof(CERT_INFO, SerialNumber),
- CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE,
- TRUE, offsetof(CERT_INFO, SerialNumber.pbData), 0 },
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, SignatureAlgorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CERT_INFO, SignatureAlgorithm.pszObjId), 0 },
- { 0, offsetof(CERT_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
- Issuer.pbData) },
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, NotBefore),
- CRYPT_AsnDecodeValidity, sizeof(CERT_PRIVATE_KEY_VALIDITY), FALSE,
- FALSE, 0 },
- { 0, offsetof(CERT_INFO, Subject), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CERT_INFO,
- Subject.pbData) },
- /* jil FIXME: shouldn't this have an internal version, which expects
- * the pbData to be set?
- */
- { ASN_SEQUENCEOF, offsetof(CERT_INFO, SubjectPublicKeyInfo),
- CRYPT_AsnDecodePubKeyInfo, sizeof(CERT_PUBLIC_KEY_INFO), FALSE,
- TRUE, offsetof(CERT_INFO,
- SubjectPublicKeyInfo.Algorithm.Parameters.pbData), 0 },
- { ASN_BITSTRING, offsetof(CERT_INFO, IssuerUniqueId),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CERT_INFO, IssuerUniqueId.pbData), 0 },
- { ASN_BITSTRING, offsetof(CERT_INFO, SubjectUniqueId),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CERT_INFO, SubjectUniqueId.pbData), 0 },
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 3, offsetof(CERT_INFO, cExtension),
- CRYPT_AsnDecodeCertExtensions, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
- offsetof(CERT_INFO, rgExtension), 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLEntry(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- struct AsnDecodeSequenceItem items[] = {
- { ASN_INTEGER, offsetof(CRL_ENTRY, SerialNumber),
- CRYPT_AsnDecodeIntegerInternal, sizeof(CRYPT_INTEGER_BLOB), FALSE, TRUE,
- offsetof(CRL_ENTRY, SerialNumber.pbData), 0 },
- { 0, offsetof(CRL_ENTRY, RevocationDate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), FALSE, FALSE, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_ENTRY, cExtension),
- CRYPT_AsnDecodeExtensionsInternal, sizeof(CERT_EXTENSIONS), TRUE, TRUE,
- offsetof(CRL_ENTRY, rgExtension), 0 },
- };
- PCRL_ENTRY entry = (PCRL_ENTRY)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, entry,
- *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- NULL, entry, pcbStructInfo, entry ? entry->SerialNumber.pbData : NULL);
- return ret;
-}
-
-/* Warning: assumes pvStructInfo is a struct GenericArray whose rgItems has
- * been set prior to calling.
- */
-static BOOL WINAPI CRYPT_AsnDecodeCRLEntries(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeCRLEntry, sizeof(CRL_ENTRY), TRUE,
- offsetof(CRL_ENTRY, SerialNumber.pbData) };
- struct GenericArray *entries = (struct GenericArray *)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- entries ? entries->rgItems : NULL);
- TRACE("Returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR, offsetof(CRL_INFO, dwVersion),
- CRYPT_AsnDecodeCertVersion, sizeof(DWORD), TRUE, FALSE, 0, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_INFO, SignatureAlgorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CRL_INFO, SignatureAlgorithm.pszObjId), 0 },
- { 0, offsetof(CRL_INFO, Issuer), CRYPT_AsnDecodeDerBlob,
- sizeof(CRYPT_DER_BLOB), FALSE, TRUE, offsetof(CRL_INFO,
- Issuer.pbData) },
- { 0, offsetof(CRL_INFO, ThisUpdate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), FALSE, FALSE, 0 },
- { 0, offsetof(CRL_INFO, NextUpdate), CRYPT_AsnDecodeChoiceOfTime,
- sizeof(FILETIME), TRUE, FALSE, 0 },
- { ASN_SEQUENCEOF, offsetof(CRL_INFO, cCRLEntry),
- CRYPT_AsnDecodeCRLEntries, sizeof(struct GenericArray), TRUE, TRUE,
- offsetof(CRL_INFO, rgCRLEntry), 0 },
- /* Note that the extensions are ignored by MS, so I'll ignore them too
- */
- { 0, offsetof(CRL_INFO, cExtension), NULL,
- sizeof(CERT_EXTENSIONS), TRUE, FALSE, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
-
- TRACE("Returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-/* Differences between this and CRYPT_AsnDecodeOid:
- * - pvStructInfo is a LPSTR *, not an LPSTR
- * - CRYPT_AsnDecodeOid doesn't account for the size of an LPSTR in its byte
- * count, whereas our callers (typically CRYPT_AsnDecodeSequence) expect this
- * to
- */
-static BOOL WINAPI CRYPT_AsnDecodeOidWrapper(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeOid(pbEncoded, cbEncoded, dwFlags,
- pvStructInfo ? *(LPSTR *)pvStructInfo : NULL, pcbStructInfo);
- if (ret || GetLastError() == ERROR_MORE_DATA)
- *pcbStructInfo += sizeof(LPSTR);
- if (ret && pvStructInfo)
- TRACE("returning %s\n", debugstr_a(*(LPSTR *)pvStructInfo));
- return ret;
-}
-
-/* Warning: assumes pvStructInfo is a CERT_EXTENSION whose pszObjId is set
- * ahead of time!
- */
-static BOOL WINAPI CRYPT_AsnDecodeExtension(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CERT_EXTENSION, pszObjId),
- CRYPT_AsnDecodeOidWrapper, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CERT_EXTENSION, pszObjId), 0 },
- { ASN_BOOL, offsetof(CERT_EXTENSION, fCritical), CRYPT_AsnDecodeBool,
- sizeof(BOOL), TRUE, FALSE, 0, 0 },
- { ASN_OCTETSTRING, offsetof(CERT_EXTENSION, Value),
- CRYPT_AsnDecodeOctetsInternal, sizeof(CRYPT_OBJID_BLOB), FALSE, TRUE,
- offsetof(CERT_EXTENSION, Value.pbData) },
- };
- BOOL ret = TRUE;
- PCERT_EXTENSION ext = (PCERT_EXTENSION)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, ext,
- *pcbStructInfo);
-
- if (ext)
- TRACE("ext->pszObjId is %p\n", ext->pszObjId);
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
- ext, pcbStructInfo, ext ? ext->pszObjId : NULL);
- if (ext)
- TRACE("ext->pszObjId is %p (%s)\n", ext->pszObjId,
- debugstr_a(ext->pszObjId));
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeExtensionsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeExtension, sizeof(CERT_EXTENSION), TRUE,
- offsetof(CERT_EXTENSION, pszObjId) };
- PCERT_EXTENSIONS exts = (PCERT_EXTENSIONS)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, exts ? exts->rgExtension : NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeExtensions(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, pcbStructInfo);
- if (ret && pvStructInfo)
- {
- ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara, pvStructInfo,
- pcbStructInfo, *pcbStructInfo);
- if (ret)
- {
- CERT_EXTENSIONS *exts;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- exts = (CERT_EXTENSIONS *)pvStructInfo;
- exts->rgExtension = (CERT_EXTENSION *)((BYTE *)exts +
- sizeof(CERT_EXTENSIONS));
- ret = CRYPT_AsnDecodeExtensionsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- pcbStructInfo);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* FIXME: honor the CRYPT_DECODE_SHARE_OID_STRING_FLAG. */
-static BOOL WINAPI CRYPT_AsnDecodeOid(const BYTE *pbEncoded, DWORD cbEncoded,
- DWORD dwFlags, LPSTR pszObjId, DWORD *pcbObjId)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags, pszObjId,
- *pcbObjId);
-
- __TRY
- {
- if (pbEncoded[0] == ASN_OBJECTIDENTIFIER)
- {
- DWORD dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- DWORD bytesNeeded;
-
- if (dataLen)
- {
- /* The largest possible string for the first two components
- * is 2.175 (= 2 * 40 + 175 = 255), so this is big enough.
- */
- char firstTwo[6];
- const BYTE *ptr;
-
- snprintf(firstTwo, sizeof(firstTwo), "%d.%d",
- pbEncoded[1 + lenBytes] / 40,
- pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] / 40)
- * 40);
- bytesNeeded = strlen(firstTwo) + 1;
- for (ptr = pbEncoded + 2 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- /* large enough for ".4000000" */
- char str[9];
- int val = 0;
-
- while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
- (*ptr & 0x80))
- {
- val <<= 7;
- val |= *ptr & 0x7f;
- ptr++;
- }
- if (ptr - pbEncoded - 1 - lenBytes >= dataLen ||
- (*ptr & 0x80))
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- val <<= 7;
- val |= *ptr++;
- snprintf(str, sizeof(str), ".%d", val);
- bytesNeeded += strlen(str);
- }
- }
- if (!pszObjId)
- *pcbObjId = bytesNeeded;
- else if (*pcbObjId < bytesNeeded)
- {
- *pcbObjId = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pszObjId = 0;
- sprintf(pszObjId, "%d.%d", pbEncoded[1 + lenBytes] / 40,
- pbEncoded[1 + lenBytes] - (pbEncoded[1 + lenBytes] /
- 40) * 40);
- pszObjId += strlen(pszObjId);
- for (ptr = pbEncoded + 2 + lenBytes; ret &&
- ptr - pbEncoded - 1 - lenBytes < dataLen; )
- {
- int val = 0;
-
- while (ptr - pbEncoded - 1 - lenBytes < dataLen &&
- (*ptr & 0x80))
- {
- val <<= 7;
- val |= *ptr & 0x7f;
- ptr++;
- }
- val <<= 7;
- val |= *ptr++;
- sprintf(pszObjId, ".%d", val);
- pszObjId += strlen(pszObjId);
- }
- }
- }
- else
- bytesNeeded = 0;
- *pcbObjId = bytesNeeded;
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Warning: this assumes the address of value->Value.pbData is already set, in
- * order to avoid overwriting memory. (In some cases, it may change it, if it
- * doesn't copy anything to memory.) Be sure to set it correctly!
- */
-static BOOL WINAPI CRYPT_AsnDecodeNameValue(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- DWORD dataLen;
- CERT_NAME_VALUE *value = (CERT_NAME_VALUE *)pvStructInfo;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- break;
- default:
- FIXME("Unimplemented string type %02x\n", pbEncoded[0]);
- SetLastError(OSS_UNIMPLEMENTED);
- ret = FALSE;
- }
- if (ret)
- {
- DWORD bytesNeeded = sizeof(CERT_NAME_VALUE);
-
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += dataLen;
- break;
- }
- if (!value)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pcbStructInfo = bytesNeeded;
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- value->dwValueType = CERT_RDN_NUMERIC_STRING;
- break;
- case ASN_PRINTABLESTRING:
- value->dwValueType = CERT_RDN_PRINTABLE_STRING;
- break;
- case ASN_IA5STRING:
- value->dwValueType = CERT_RDN_IA5_STRING;
- break;
- }
- if (dataLen)
- {
- switch (pbEncoded[0])
- {
- case ASN_NUMERICSTRING:
- case ASN_PRINTABLESTRING:
- case ASN_IA5STRING:
- value->Value.cbData = dataLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- value->Value.pbData = (BYTE *)pbEncoded + 1 +
- lenBytes;
- else
- {
- assert(value->Value.pbData);
- memcpy(value->Value.pbData,
- pbEncoded + 1 + lenBytes, dataLen);
- }
- break;
- }
- }
- else
- {
- value->Value.cbData = 0;
- value->Value.pbData = NULL;
- }
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeRdnAttr(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CERT_RDN_ATTR, pszObjId),
- CRYPT_AsnDecodeOidWrapper, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CERT_RDN_ATTR, pszObjId), 0 },
- { 0, offsetof(CERT_RDN_ATTR, dwValueType), CRYPT_AsnDecodeNameValue,
- sizeof(CERT_NAME_VALUE), FALSE, TRUE, offsetof(CERT_RDN_ATTR,
- Value.pbData), 0 },
- };
- CERT_RDN_ATTR *attr = (CERT_RDN_ATTR *)pvStructInfo;
-
- if (attr)
- TRACE("attr->pszObjId is %p\n", attr->pszObjId);
- ret = CRYPT_AsnDecodeSequence(X509_ASN_ENCODING, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags, NULL,
- attr, pcbStructInfo, attr ? attr->pszObjId : NULL);
- if (attr)
- TRACE("attr->pszObjId is %p (%s)\n", attr->pszObjId,
- debugstr_a(attr->pszObjId));
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeRdn(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_CONSTRUCTOR | ASN_SETOF,
- CRYPT_AsnDecodeRdnAttr, sizeof(CERT_RDN_ATTR), TRUE,
- offsetof(CERT_RDN_ATTR, pszObjId) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeRdn, sizeof(CERT_RDN), TRUE,
- offsetof(CERT_RDN, rgRDNAttr) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCopyBytes(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- DWORD bytesNeeded = sizeof(CRYPT_OBJID_BLOB);
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += cbEncoded;
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- PCRYPT_OBJID_BLOB blob = (PCRYPT_OBJID_BLOB)pvStructInfo;
-
- *pcbStructInfo = bytesNeeded;
- blob->cbData = cbEncoded;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (LPBYTE)pbEncoded;
- else
- {
- assert(blob->pbData);
- memcpy(blob->pbData, pbEncoded, blob->cbData);
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAlgorithmId(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- CRYPT_ALGORITHM_IDENTIFIER *algo =
- (CRYPT_ALGORITHM_IDENTIFIER *)pvStructInfo;
- BOOL ret = TRUE;
- struct AsnDecodeSequenceItem items[] = {
- { ASN_OBJECTIDENTIFIER, offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId),
- CRYPT_AsnDecodeOidWrapper, sizeof(LPSTR), FALSE, TRUE,
- offsetof(CRYPT_ALGORITHM_IDENTIFIER, pszObjId), 0 },
- { 0, offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters),
- CRYPT_AsnDecodeCopyBytes, sizeof(CRYPT_OBJID_BLOB), TRUE, TRUE,
- offsetof(CRYPT_ALGORITHM_IDENTIFIER, Parameters.pbData), 0 },
- };
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, algo ? algo->pszObjId : NULL);
- if (ret && pvStructInfo)
- {
- TRACE("pszObjId is %p (%s)\n", algo->pszObjId,
- debugstr_a(algo->pszObjId));
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodePubKeyInfo(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_SEQUENCEOF, offsetof(CERT_PUBLIC_KEY_INFO, Algorithm),
- CRYPT_AsnDecodeAlgorithmId, sizeof(CRYPT_ALGORITHM_IDENTIFIER),
- FALSE, TRUE, offsetof(CERT_PUBLIC_KEY_INFO,
- Algorithm.pszObjId) },
- { ASN_BITSTRING, offsetof(CERT_PUBLIC_KEY_INFO, PublicKey),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), FALSE, TRUE,
- offsetof(CERT_PUBLIC_KEY_INFO, PublicKey.pbData) },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBool(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (cbEncoded < 3)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (GET_LEN_BYTES(pbEncoded[1]) > 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (pbEncoded[1] > 1)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(BOOL);
- ret = TRUE;
- }
- else if (*pcbStructInfo < sizeof(BOOL))
- {
- *pcbStructInfo = sizeof(BOOL);
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *(BOOL *)pvStructInfo = pbEncoded[2] ? TRUE : FALSE;
- ret = TRUE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltNameEntry(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- PCERT_ALT_NAME_ENTRY entry = (PCERT_ALT_NAME_ENTRY)pvStructInfo;
- DWORD dataLen, lenBytes, bytesNeeded = sizeof(CERT_ALT_NAME_ENTRY);
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (cbEncoded < 2)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if ((pbEncoded[0] & ASN_FLAGS_MASK) != ASN_CONTEXT)
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- return FALSE;
- }
- lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- if (1 + lenBytes > cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- return FALSE;
- }
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- switch (pbEncoded[0] & ASN_TYPE_MASK)
- {
- case 1: /* rfc822Name */
- case 2: /* dNSName */
- case 6: /* uniformResourceIdentifier */
- bytesNeeded += (dataLen + 1) * sizeof(WCHAR);
- break;
- case 7: /* iPAddress */
- bytesNeeded += dataLen;
- break;
- case 8: /* registeredID */
- /* FIXME: decode as OID */
- case 0: /* otherName */
- case 4: /* directoryName */
- FIXME("stub\n");
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- break;
- case 3: /* x400Address, unimplemented */
- case 5: /* ediPartyName, unimplemented */
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- break;
- default:
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- if (ret)
- {
- if (!entry)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- *pcbStructInfo = bytesNeeded;
- /* MS used values one greater than the asn1 ones.. sigh */
- entry->dwAltNameChoice = (pbEncoded[0] & 0x7f) + 1;
- switch (pbEncoded[0] & ASN_TYPE_MASK)
- {
- case 1: /* rfc822Name */
- case 2: /* dNSName */
- case 6: /* uniformResourceIdentifier */
- {
- DWORD i;
-
- for (i = 0; i < dataLen; i++)
- entry->u.pwszURL[i] =
- (WCHAR)pbEncoded[1 + lenBytes + i];
- entry->u.pwszURL[i] = 0;
- TRACE("URL is %p (%s)\n", entry->u.pwszURL,
- debugstr_w(entry->u.pwszURL));
- break;
- }
- case 7: /* iPAddress */
- /* The next data pointer is in the pwszURL spot, that is,
- * the first 4 bytes. Need to move it to the next spot.
- */
- entry->u.IPAddress.pbData = (LPBYTE)entry->u.pwszURL;
- entry->u.IPAddress.cbData = dataLen;
- memcpy(entry->u.IPAddress.pbData, pbEncoded + 1 + lenBytes,
- dataLen);
- break;
- }
- }
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltNameInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
- offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
- PCERT_ALT_NAME_INFO info = (PCERT_ALT_NAME_INFO)pvStructInfo;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (info)
- TRACE("info->rgAltEntry is %p\n", info->rgAltEntry);
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, info ? info->rgAltEntry : NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeAltName(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeAltNameEntry, sizeof(CERT_ALT_NAME_ENTRY), TRUE,
- offsetof(CERT_ALT_NAME_ENTRY, u.pwszURL) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-struct PATH_LEN_CONSTRAINT
-{
- BOOL fPathLenConstraint;
- DWORD dwPathLenConstraint;
-};
-
-static BOOL WINAPI CRYPT_AsnDecodePathLenConstraint(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- TRACE("%p, %ld, %08lx, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pvStructInfo, *pcbStructInfo);
-
- if (cbEncoded)
- {
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded = sizeof(struct PATH_LEN_CONSTRAINT);
-
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- struct PATH_LEN_CONSTRAINT *constraint =
- (struct PATH_LEN_CONSTRAINT *)pvStructInfo;
- DWORD size = sizeof(constraint->dwPathLenConstraint);
-
- ret = CRYPT_AsnDecodeInt(dwCertEncodingType, X509_INTEGER,
- pbEncoded, cbEncoded, 0, NULL,
- &constraint->dwPathLenConstraint, &size);
- if (ret)
- constraint->fPathLenConstraint = TRUE;
- TRACE("got an int, dwPathLenConstraint is %ld\n",
- constraint->dwPathLenConstraint);
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBasicConstraints2(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_BOOL, offsetof(CERT_BASIC_CONSTRAINTS2_INFO, fCA),
- CRYPT_AsnDecodeBool, sizeof(BOOL), TRUE, FALSE, 0, 0 },
- { ASN_INTEGER, offsetof(CERT_BASIC_CONSTRAINTS2_INFO,
- fPathLenConstraint), CRYPT_AsnDecodePathLenConstraint,
- sizeof(struct PATH_LEN_CONSTRAINT), TRUE, FALSE, 0, 0 },
- };
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-#define RSA1_MAGIC 0x31415352
-
-struct DECODED_RSA_PUB_KEY
-{
- DWORD pubexp;
- CRYPT_INTEGER_BLOB modulus;
-};
-
-static BOOL WINAPI CRYPT_AsnDecodeRsaPubKey(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- struct AsnDecodeSequenceItem items[] = {
- { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, modulus),
- CRYPT_AsnDecodeUnsignedIntegerInternal, sizeof(CRYPT_INTEGER_BLOB),
- FALSE, TRUE, offsetof(struct DECODED_RSA_PUB_KEY, modulus.pbData),
- 0 },
- { ASN_INTEGER, offsetof(struct DECODED_RSA_PUB_KEY, pubexp),
- CRYPT_AsnDecodeInt, sizeof(DWORD), FALSE, FALSE, 0, 0 },
- };
- struct DECODED_RSA_PUB_KEY *decodedKey = NULL;
- DWORD size = 0;
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
- CRYPT_DECODE_ALLOC_FLAG, NULL, &decodedKey, &size, NULL);
- if (ret)
- {
- DWORD bytesNeeded = sizeof(BLOBHEADER) + sizeof(RSAPUBKEY) +
- decodedKey->modulus.cbData;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = bytesNeeded;
- ret = TRUE;
- }
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- BLOBHEADER *hdr;
- RSAPUBKEY *rsaPubKey;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- hdr = (BLOBHEADER *)pvStructInfo;
- hdr->bType = PUBLICKEYBLOB;
- hdr->bVersion = CUR_BLOB_VERSION;
- hdr->reserved = 0;
- hdr->aiKeyAlg = CALG_RSA_KEYX;
- rsaPubKey = (RSAPUBKEY *)((BYTE *)pvStructInfo +
- sizeof(BLOBHEADER));
- rsaPubKey->magic = RSA1_MAGIC;
- rsaPubKey->pubexp = decodedKey->pubexp;
- rsaPubKey->bitlen = decodedKey->modulus.cbData * 8;
- memcpy((BYTE *)pvStructInfo + sizeof(BLOBHEADER) +
- sizeof(RSAPUBKEY), decodedKey->modulus.pbData,
- decodedKey->modulus.cbData);
- }
- LocalFree(decodedKey);
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeOctetsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
- DWORD bytesNeeded, dataLen;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- bytesNeeded = sizeof(CRYPT_DATA_BLOB);
- else
- bytesNeeded = dataLen + sizeof(CRYPT_DATA_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbStructInfo = bytesNeeded;
- ret = FALSE;
- }
- else
- {
- CRYPT_DATA_BLOB *blob;
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- blob = (CRYPT_DATA_BLOB *)pvStructInfo;
- blob->cbData = dataLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- blob->pbData = (BYTE *)pbEncoded + 1 + lenBytes;
- else
- {
- assert(blob->pbData);
- if (blob->cbData)
- memcpy(blob->pbData, pbEncoded + 1 + lenBytes,
- blob->cbData);
- }
- }
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeOctets(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if (!cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (pbEncoded[0] != ASN_OCTETSTRING)
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- else if ((ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_DATA_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_DATA_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_DATA_BLOB);
- ret = CRYPT_AsnDecodeOctetsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBitsInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %ld)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- if (pbEncoded[0] == ASN_BITSTRING)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- bytesNeeded = sizeof(CRYPT_BIT_BLOB);
- else
- bytesNeeded = dataLen - 1 + sizeof(CRYPT_BIT_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_BIT_BLOB *blob;
-
- blob = (CRYPT_BIT_BLOB *)pvStructInfo;
- blob->cbData = dataLen - 1;
- blob->cUnusedBits = *(pbEncoded + 1 +
- GET_LEN_BYTES(pbEncoded[1]));
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- {
- blob->pbData = (BYTE *)pbEncoded + 2 +
- GET_LEN_BYTES(pbEncoded[1]);
- }
- else
- {
- assert(blob->pbData);
- if (blob->cbData)
- {
- BYTE mask = 0xff << blob->cUnusedBits;
-
- memcpy(blob->pbData, pbEncoded + 2 +
- GET_LEN_BYTES(pbEncoded[1]), blob->cbData);
- blob->pbData[blob->cbData - 1] &= mask;
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeBits(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("(%p, %ld, 0x%08lx, %p, %p, %p)\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo);
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_BIT_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_BIT_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo + sizeof(CRYPT_BIT_BLOB);
- ret = CRYPT_AsnDecodeBitsInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_DECODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- TRACE("returning %d (%08lx)\n", ret, GetLastError());
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeInt(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(int);
- return TRUE;
- }
- __TRY
- {
- BYTE buf[sizeof(CRYPT_INTEGER_BLOB) + sizeof(int)];
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)buf;
- DWORD size = sizeof(buf);
-
- blob->pbData = buf + sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- X509_MULTI_BYTE_INTEGER, pbEncoded, cbEncoded, 0, NULL, &buf, &size);
- if (ret)
- {
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, sizeof(int))))
- {
- int val, i;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- if (blob->pbData[blob->cbData - 1] & 0x80)
- {
- /* initialize to a negative value to sign-extend */
- val = -1;
- }
- else
- val = 0;
- for (i = 0; i < blob->cbData; i++)
- {
- val <<= 8;
- val |= blob->pbData[blob->cbData - i - 1];
- }
- memcpy(pvStructInfo, &val, sizeof(int));
- }
- }
- else if (GetLastError() == ERROR_MORE_DATA)
- SetLastError(CRYPT_E_ASN1_LARGE);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeIntegerInternal(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- blob->cbData = dataLen;
- assert(blob->pbData);
- if (blob->cbData)
- {
- DWORD i;
-
- for (i = 0; i < blob->cbData; i++)
- {
- blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
- dataLen - i - 1);
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_INTEGER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo +
- sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedIntegerInternal(
- DWORD dwCertEncodingType, LPCSTR lpszStructType, const BYTE *pbEncoded,
- DWORD cbEncoded, DWORD dwFlags, PCRYPT_DECODE_PARA pDecodePara,
- void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (pbEncoded[0] == ASN_INTEGER)
- {
- DWORD bytesNeeded, dataLen;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes = GET_LEN_BYTES(pbEncoded[1]);
-
- bytesNeeded = dataLen + sizeof(CRYPT_INTEGER_BLOB);
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if (*pcbStructInfo < bytesNeeded)
- {
- *pcbStructInfo = bytesNeeded;
- SetLastError(ERROR_MORE_DATA);
- ret = FALSE;
- }
- else
- {
- CRYPT_INTEGER_BLOB *blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
-
- blob->cbData = dataLen;
- assert(blob->pbData);
- /* remove leading zero byte if it exists */
- if (blob->cbData && *(pbEncoded + 1 + lenBytes) == 0)
- {
- blob->cbData--;
- blob->pbData++;
- }
- if (blob->cbData)
- {
- DWORD i;
-
- for (i = 0; i < blob->cbData; i++)
- {
- blob->pbData[i] = *(pbEncoded + 1 + lenBytes +
- dataLen - i - 1);
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeUnsignedInteger(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- DWORD bytesNeeded;
-
- if ((ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, NULL, &bytesNeeded)))
- {
- if (!pvStructInfo)
- *pcbStructInfo = bytesNeeded;
- else if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- CRYPT_INTEGER_BLOB *blob;
-
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- blob = (CRYPT_INTEGER_BLOB *)pvStructInfo;
- blob->pbData = (BYTE *)pvStructInfo +
- sizeof(CRYPT_INTEGER_BLOB);
- ret = CRYPT_AsnDecodeUnsignedIntegerInternal(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded,
- dwFlags & ~CRYPT_ENCODE_ALLOC_FLAG, NULL, pvStructInfo,
- &bytesNeeded);
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeEnumerated(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(int);
- return TRUE;
- }
- __TRY
- {
- if (pbEncoded[0] == ASN_ENUMERATED)
- {
- unsigned int val = 0, i;
-
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] == 0)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- /* A little strange looking, but we have to accept a sign byte:
- * 0xffffffff gets encoded as 0a 05 00 ff ff ff ff. Also,
- * assuming a small length is okay here, it has to be in short
- * form.
- */
- if (pbEncoded[1] > sizeof(unsigned int) + 1)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- return FALSE;
- }
- for (i = 0; i < pbEncoded[1]; i++)
- {
- val <<= 8;
- val |= pbEncoded[2 + i];
- }
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, sizeof(unsigned int))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- memcpy(pvStructInfo, &val, sizeof(unsigned int));
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-/* Modifies word, pbEncoded, and len, and magically sets a value ret to FALSE
- * if it fails.
- */
-#define CRYPT_TIME_GET_DIGITS(pbEncoded, len, numDigits, word) \
- do { \
- BYTE i; \
- \
- (word) = 0; \
- for (i = 0; (len) > 0 && i < (numDigits); i++, (len)--) \
- { \
- if (!isdigit(*(pbEncoded))) \
- { \
- SetLastError(CRYPT_E_ASN1_CORRUPT); \
- ret = FALSE; \
- } \
- else \
- { \
- (word) *= 10; \
- (word) += *(pbEncoded)++ - '0'; \
- } \
- } \
- } while (0)
-
-static BOOL CRYPT_AsnDecodeTimeZone(const BYTE *pbEncoded, DWORD len,
- SYSTEMTIME *sysTime)
-{
- BOOL ret;
-
- __TRY
- {
- ret = TRUE;
- if (len >= 3 && (*pbEncoded == '+' || *pbEncoded == '-'))
- {
- WORD hours, minutes = 0;
- BYTE sign = *pbEncoded++;
-
- len--;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, hours);
- if (ret && hours >= 24)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else if (len >= 2)
- {
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, minutes);
- if (ret && minutes >= 60)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- }
- if (ret)
- {
- if (sign == '+')
- {
- sysTime->wHour += hours;
- sysTime->wMinute += minutes;
- }
- else
- {
- if (hours > sysTime->wHour)
- {
- sysTime->wDay--;
- sysTime->wHour = 24 - (hours - sysTime->wHour);
- }
- else
- sysTime->wHour -= hours;
- if (minutes > sysTime->wMinute)
- {
- sysTime->wHour--;
- sysTime->wMinute = 60 - (minutes - sysTime->wMinute);
- }
- else
- sysTime->wMinute -= minutes;
- }
- }
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-#define MIN_ENCODED_TIME_LENGTH 10
-
-static BOOL WINAPI CRYPT_AsnDecodeUtcTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(FILETIME);
- return TRUE;
- }
- __TRY
- {
- ret = TRUE;
- if (pbEncoded[0] == ASN_UTCTIME)
- {
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] > 0x7f)
- {
- /* long-form date strings really can't be valid */
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- SYSTEMTIME sysTime = { 0 };
- BYTE len = pbEncoded[1];
-
- if (len < MIN_ENCODED_TIME_LENGTH)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- pbEncoded += 2;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wYear);
- if (sysTime.wYear >= 50)
- sysTime.wYear += 1900;
- else
- sysTime.wYear += 2000;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMinute);
- if (ret && len > 0)
- {
- if (len >= 2 && isdigit(*pbEncoded) &&
- isdigit(*(pbEncoded + 1)))
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wSecond);
- else if (isdigit(*pbEncoded))
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 1,
- sysTime.wSecond);
- if (ret)
- ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
- &sysTime);
- }
- if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- sizeof(FILETIME))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- ret = SystemTimeToFileTime(&sysTime,
- (FILETIME *)pvStructInfo);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeGeneralizedTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- if (!pvStructInfo)
- {
- *pcbStructInfo = sizeof(FILETIME);
- return TRUE;
- }
- __TRY
- {
- ret = TRUE;
- if (pbEncoded[0] == ASN_GENERALTIME)
- {
- if (cbEncoded <= 1)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- ret = FALSE;
- }
- else if (pbEncoded[1] > 0x7f)
- {
- /* long-form date strings really can't be valid */
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- BYTE len = pbEncoded[1];
-
- if (len < MIN_ENCODED_TIME_LENGTH)
- {
- SetLastError(CRYPT_E_ASN1_CORRUPT);
- ret = FALSE;
- }
- else
- {
- SYSTEMTIME sysTime = { 0 };
-
- pbEncoded += 2;
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 4, sysTime.wYear);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wMonth);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wDay);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2, sysTime.wHour);
- if (ret && len > 0)
- {
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wMinute);
- if (ret && len > 0)
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, 2,
- sysTime.wSecond);
- if (ret && len > 0 && (*pbEncoded == '.' ||
- *pbEncoded == ','))
- {
- BYTE digits;
-
- pbEncoded++;
- len--;
- /* workaround macro weirdness */
- digits = min(len, 3);
- CRYPT_TIME_GET_DIGITS(pbEncoded, len, digits,
- sysTime.wMilliseconds);
- }
- if (ret)
- ret = CRYPT_AsnDecodeTimeZone(pbEncoded, len,
- &sysTime);
- }
- if (ret && (ret = CRYPT_DecodeEnsureSpace(dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo,
- sizeof(FILETIME))))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- ret = SystemTimeToFileTime(&sysTime,
- (FILETIME *)pvStructInfo);
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeChoiceOfTime(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- __TRY
- {
- if (pbEncoded[0] == ASN_UTCTIME)
- ret = CRYPT_AsnDecodeUtcTime(dwCertEncodingType, lpszStructType,
- pbEncoded, cbEncoded, dwFlags, pDecodePara, pvStructInfo,
- pcbStructInfo);
- else if (pbEncoded[0] == ASN_GENERALTIME)
- ret = CRYPT_AsnDecodeGeneralizedTime(dwCertEncodingType,
- lpszStructType, pbEncoded, cbEncoded, dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo);
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- ret = FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeSequenceOfAny(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret = TRUE;
-
- __TRY
- {
- if (pbEncoded[0] == ASN_SEQUENCEOF)
- {
- DWORD bytesNeeded, dataLen, remainingLen, cValue;
-
- if ((ret = CRYPT_GetLen(pbEncoded, cbEncoded, &dataLen)))
- {
- BYTE lenBytes;
- const BYTE *ptr;
-
- lenBytes = GET_LEN_BYTES(pbEncoded[1]);
- bytesNeeded = sizeof(CRYPT_SEQUENCE_OF_ANY);
- cValue = 0;
- ptr = pbEncoded + 1 + lenBytes;
- remainingLen = dataLen;
- while (ret && remainingLen)
- {
- DWORD nextLen;
-
- ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
- if (ret)
- {
- DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
-
- remainingLen -= 1 + nextLenBytes + nextLen;
- ptr += 1 + nextLenBytes + nextLen;
- bytesNeeded += sizeof(CRYPT_DER_BLOB);
- if (!(dwFlags & CRYPT_DECODE_NOCOPY_FLAG))
- bytesNeeded += 1 + nextLenBytes + nextLen;
- cValue++;
- }
- }
- if (ret)
- {
- CRYPT_SEQUENCE_OF_ANY *seq;
- BYTE *nextPtr;
- DWORD i;
-
- if ((ret = CRYPT_DecodeEnsureSpace(dwFlags, pDecodePara,
- pvStructInfo, pcbStructInfo, bytesNeeded)))
- {
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG)
- pvStructInfo = *(BYTE **)pvStructInfo;
- seq = (CRYPT_SEQUENCE_OF_ANY *)pvStructInfo;
- seq->cValue = cValue;
- seq->rgValue = (CRYPT_DER_BLOB *)((BYTE *)seq +
- sizeof(*seq));
- nextPtr = (BYTE *)seq->rgValue +
- cValue * sizeof(CRYPT_DER_BLOB);
- ptr = pbEncoded + 1 + lenBytes;
- remainingLen = dataLen;
- i = 0;
- while (ret && remainingLen)
- {
- DWORD nextLen;
-
- ret = CRYPT_GetLen(ptr, remainingLen, &nextLen);
- if (ret)
- {
- DWORD nextLenBytes = GET_LEN_BYTES(ptr[1]);
-
- seq->rgValue[i].cbData = 1 + nextLenBytes +
- nextLen;
- if (dwFlags & CRYPT_DECODE_NOCOPY_FLAG)
- seq->rgValue[i].pbData = (BYTE *)ptr;
- else
- {
- seq->rgValue[i].pbData = nextPtr;
- memcpy(nextPtr, ptr, 1 + nextLenBytes +
- nextLen);
- nextPtr += 1 + nextLenBytes + nextLen;
- }
- remainingLen -= 1 + nextLenBytes + nextLen;
- ptr += 1 + nextLenBytes + nextLen;
- i++;
- }
- }
- }
- }
- }
- }
- else
- {
- SetLastError(CRYPT_E_ASN1_BADTAG);
- return FALSE;
- }
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeDistPoint(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- struct AsnDecodeSequenceItem items[] = {
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 0, offsetof(CRL_DIST_POINT,
- DistPointName), CRYPT_AsnDecodeAltNameInternal,
- sizeof(CRL_DIST_POINT_NAME), TRUE, TRUE, offsetof(CRL_DIST_POINT,
- DistPointName.u.FullName.rgAltEntry), 0 },
- { ASN_CONTEXT | 1, offsetof(CRL_DIST_POINT, ReasonFlags),
- CRYPT_AsnDecodeBitsInternal, sizeof(CRYPT_BIT_BLOB), TRUE, TRUE,
- offsetof(CRL_DIST_POINT, ReasonFlags.pbData), 0 },
- { ASN_CONTEXT | ASN_CONSTRUCTOR | 2, offsetof(CRL_DIST_POINT, CRLIssuer),
- CRYPT_AsnDecodeAltNameInternal, sizeof(CERT_ALT_NAME_INFO), TRUE, TRUE,
- offsetof(CRL_DIST_POINT, CRLIssuer.rgAltEntry), 0 },
- };
- BOOL ret;
-
- ret = CRYPT_AsnDecodeSequence(dwCertEncodingType, items,
- sizeof(items) / sizeof(items[0]), pbEncoded, cbEncoded,
- dwFlags, pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- return ret;
-}
-
-static BOOL WINAPI CRYPT_AsnDecodeCRLDistPoints(DWORD dwCertEncodingType,
- LPCSTR lpszStructType, const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- BOOL ret;
-
- TRACE("%p, %ld, %08lx, %p, %p, %ld\n", pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, *pcbStructInfo);
-
- __TRY
- {
- struct AsnArrayDescriptor arrayDesc = { ASN_SEQUENCEOF,
- CRYPT_AsnDecodeDistPoint, sizeof(CRL_DIST_POINT), TRUE,
- offsetof(CRL_DIST_POINT, DistPointName.u.FullName.rgAltEntry) };
-
- ret = CRYPT_AsnDecodeArray(&arrayDesc, pbEncoded, cbEncoded, dwFlags,
- pDecodePara, pvStructInfo, pcbStructInfo, NULL);
- }
- __EXCEPT_PAGE_FAULT
- {
- SetLastError(STATUS_ACCESS_VIOLATION);
- ret = FALSE;
- }
- __ENDTRY
- return ret;
-}
-
-BOOL WINAPI CryptDecodeObjectEx(DWORD dwCertEncodingType, LPCSTR lpszStructType,
- const BYTE *pbEncoded, DWORD cbEncoded, DWORD dwFlags,
- PCRYPT_DECODE_PARA pDecodePara, void *pvStructInfo, DWORD *pcbStructInfo)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret = FALSE;
- CryptDecodeObjectExFunc decodeFunc = NULL;
- HCRYPTOIDFUNCADDR hFunc = NULL;
-
- TRACE("(0x%08lx, %s, %p, %ld, 0x%08lx, %p, %p, %p)\n",
- dwCertEncodingType, debugstr_a(lpszStructType), pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
-
- if (!pvStructInfo && !pcbStructInfo)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
- if ((dwCertEncodingType & CERT_ENCODING_TYPE_MASK) != X509_ASN_ENCODING
- && (dwCertEncodingType & CMSG_ENCODING_TYPE_MASK) != PKCS_7_ASN_ENCODING)
- {
- SetLastError(ERROR_FILE_NOT_FOUND);
- return FALSE;
- }
- if (!cbEncoded)
- {
- SetLastError(CRYPT_E_ASN1_EOD);
- return FALSE;
- }
- if (cbEncoded > MAX_ENCODED_LEN)
- {
- SetLastError(CRYPT_E_ASN1_LARGE);
- return FALSE;
- }
-
- SetLastError(NOERROR);
- if (dwFlags & CRYPT_DECODE_ALLOC_FLAG && pvStructInfo)
- *(BYTE **)pvStructInfo = NULL;
- if (!HIWORD(lpszStructType))
- {
- switch (LOWORD(lpszStructType))
- {
- case (WORD)X509_CERT:
- decodeFunc = CRYPT_AsnDecodeCert;
- break;
- case (WORD)X509_CERT_TO_BE_SIGNED:
- decodeFunc = CRYPT_AsnDecodeCertInfo;
- break;
- case (WORD)X509_CERT_CRL_TO_BE_SIGNED:
- decodeFunc = CRYPT_AsnDecodeCRLInfo;
- break;
- case (WORD)X509_EXTENSIONS:
- decodeFunc = CRYPT_AsnDecodeExtensions;
- break;
- case (WORD)X509_NAME:
- decodeFunc = CRYPT_AsnDecodeName;
- break;
- case (WORD)X509_PUBLIC_KEY_INFO:
- decodeFunc = CRYPT_AsnDecodePubKeyInfo;
- break;
- case (WORD)X509_ALTERNATE_NAME:
- decodeFunc = CRYPT_AsnDecodeAltName;
- break;
- case (WORD)X509_BASIC_CONSTRAINTS2:
- decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
- break;
- case (WORD)RSA_CSP_PUBLICKEYBLOB:
- decodeFunc = CRYPT_AsnDecodeRsaPubKey;
- break;
- case (WORD)X509_OCTET_STRING:
- decodeFunc = CRYPT_AsnDecodeOctets;
- break;
- case (WORD)X509_BITS:
- case (WORD)X509_KEY_USAGE:
- decodeFunc = CRYPT_AsnDecodeBits;
- break;
- case (WORD)X509_INTEGER:
- decodeFunc = CRYPT_AsnDecodeInt;
- break;
- case (WORD)X509_MULTI_BYTE_INTEGER:
- decodeFunc = CRYPT_AsnDecodeInteger;
- break;
- case (WORD)X509_MULTI_BYTE_UINT:
- decodeFunc = CRYPT_AsnDecodeUnsignedInteger;
- break;
- case (WORD)X509_ENUMERATED:
- decodeFunc = CRYPT_AsnDecodeEnumerated;
- break;
- case (WORD)X509_CHOICE_OF_TIME:
- decodeFunc = CRYPT_AsnDecodeChoiceOfTime;
- break;
- case (WORD)X509_SEQUENCE_OF_ANY:
- decodeFunc = CRYPT_AsnDecodeSequenceOfAny;
- break;
- case (WORD)PKCS_UTC_TIME:
- decodeFunc = CRYPT_AsnDecodeUtcTime;
- break;
- case (WORD)X509_CRL_DIST_POINTS:
- decodeFunc = CRYPT_AsnDecodeCRLDistPoints;
- break;
- default:
- FIXME("%d: unimplemented\n", LOWORD(lpszStructType));
- }
- }
- else if (!strcmp(lpszStructType, szOID_CERT_EXTENSIONS))
- decodeFunc = CRYPT_AsnDecodeExtensions;
- else if (!strcmp(lpszStructType, szOID_RSA_signingTime))
- decodeFunc = CRYPT_AsnDecodeUtcTime;
- else if (!strcmp(lpszStructType, szOID_CRL_REASON_CODE))
- decodeFunc = CRYPT_AsnDecodeEnumerated;
- else if (!strcmp(lpszStructType, szOID_KEY_USAGE))
- decodeFunc = CRYPT_AsnDecodeBits;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_KEY_IDENTIFIER))
- decodeFunc = CRYPT_AsnDecodeOctets;
- else if (!strcmp(lpszStructType, szOID_BASIC_CONSTRAINTS2))
- decodeFunc = CRYPT_AsnDecodeBasicConstraints2;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_ISSUER_ALT_NAME2))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_NEXT_UPDATE_LOCATION))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else if (!strcmp(lpszStructType, szOID_SUBJECT_ALT_NAME2))
- decodeFunc = CRYPT_AsnDecodeAltName;
- else
- TRACE("OID %s not found or unimplemented, looking for DLL\n",
- debugstr_a(lpszStructType));
- if (!decodeFunc)
- {
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_DECODE_OBJECT_EX_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, lpszStructType, 0,
- (void **)&decodeFunc, &hFunc);
- }
- if (decodeFunc)
- ret = decodeFunc(dwCertEncodingType, lpszStructType, pbEncoded,
- cbEncoded, dwFlags, pDecodePara, pvStructInfo, pcbStructInfo);
- else
- SetLastError(ERROR_FILE_NOT_FOUND);
- if (hFunc)
- CryptFreeOIDFunctionAddress(hFunc, 0);
- return ret;
-}
-
-BOOL WINAPI CryptExportPublicKeyInfo(HCRYPTPROV hCryptProv, DWORD dwKeySpec,
- DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
-{
- return CryptExportPublicKeyInfoEx(hCryptProv, dwKeySpec, dwCertEncodingType,
- NULL, 0, NULL, pInfo, pcbInfo);
-}
-
-static BOOL WINAPI CRYPT_ExportRsaPublicKeyInfoEx(HCRYPTPROV hCryptProv,
- DWORD dwKeySpec, DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId,
- DWORD dwFlags, void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
-{
- BOOL ret;
- HCRYPTKEY key;
-
- TRACE("(%ld, %ld, %08lx, %s, %08lx, %p, %p, %p)\n", hCryptProv, dwKeySpec,
- dwCertEncodingType, debugstr_a(pszPublicKeyObjId), dwFlags, pvAuxInfo,
- pInfo, pcbInfo);
-
- if (!pszPublicKeyObjId)
- pszPublicKeyObjId = szOID_RSA_RSA;
- if ((ret = CryptGetUserKey(hCryptProv, dwKeySpec, &key)))
- {
- DWORD keySize = 0;
-
- ret = CryptExportKey(key, 0, PUBLICKEYBLOB, 0, NULL, &keySize);
- if (ret)
- {
- LPBYTE pubKey = CryptMemAlloc(keySize);
-
- if (pubKey)
- {
- ret = CryptExportKey(key, 0, PUBLICKEYBLOB, 0, pubKey,
- &keySize);
- if (ret)
- {
- DWORD encodedLen = 0;
-
- ret = CryptEncodeObject(dwCertEncodingType,
- RSA_CSP_PUBLICKEYBLOB, pubKey, NULL, &encodedLen);
- if (ret)
- {
- DWORD sizeNeeded = sizeof(CERT_PUBLIC_KEY_INFO) +
- strlen(pszPublicKeyObjId) + 1 + encodedLen;
-
- if (!pInfo)
- *pcbInfo = sizeNeeded;
- else if (*pcbInfo < sizeNeeded)
- {
- SetLastError(ERROR_MORE_DATA);
- *pcbInfo = sizeNeeded;
- ret = FALSE;
- }
- else
- {
- pInfo->Algorithm.pszObjId = (char *)pInfo +
- sizeof(CERT_PUBLIC_KEY_INFO);
- lstrcpyA(pInfo->Algorithm.pszObjId,
- pszPublicKeyObjId);
- pInfo->Algorithm.Parameters.cbData = 0;
- pInfo->Algorithm.Parameters.pbData = NULL;
- pInfo->PublicKey.pbData =
- (BYTE *)pInfo->Algorithm.pszObjId
- + lstrlenA(pInfo->Algorithm.pszObjId) + 1;
- pInfo->PublicKey.cbData = encodedLen;
- pInfo->PublicKey.cUnusedBits = 0;
- ret = CryptEncodeObject(dwCertEncodingType,
- RSA_CSP_PUBLICKEYBLOB, pubKey,
- pInfo->PublicKey.pbData, &pInfo->PublicKey.cbData);
- }
- }
- }
- CryptMemFree(pubKey);
- }
- else
- ret = FALSE;
- }
- CryptDestroyKey(key);
- }
- return ret;
-}
-
-typedef BOOL (WINAPI *ExportPublicKeyInfoExFunc)(HCRYPTPROV hCryptProv,
- DWORD dwKeySpec, DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId,
- DWORD dwFlags, void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo);
-
-BOOL WINAPI CryptExportPublicKeyInfoEx(HCRYPTPROV hCryptProv, DWORD dwKeySpec,
- DWORD dwCertEncodingType, LPSTR pszPublicKeyObjId, DWORD dwFlags,
- void *pvAuxInfo, PCERT_PUBLIC_KEY_INFO pInfo, DWORD *pcbInfo)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret;
- ExportPublicKeyInfoExFunc exportFunc = NULL;
- HCRYPTOIDFUNCADDR hFunc = NULL;
-
- TRACE("(%ld, %ld, %08lx, %s, %08lx, %p, %p, %p)\n", hCryptProv, dwKeySpec,
- dwCertEncodingType, debugstr_a(pszPublicKeyObjId), dwFlags, pvAuxInfo,
- pInfo, pcbInfo);
-
- if (!hCryptProv)
- {
- SetLastError(ERROR_INVALID_PARAMETER);
- return FALSE;
- }
-
- if (pszPublicKeyObjId)
- {
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_EXPORT_PUBLIC_KEY_INFO_FUNC,
- 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType, pszPublicKeyObjId,
- 0, (void **)&exportFunc, &hFunc);
- }
- if (!exportFunc)
- exportFunc = CRYPT_ExportRsaPublicKeyInfoEx;
- ret = exportFunc(hCryptProv, dwKeySpec, dwCertEncodingType,
- pszPublicKeyObjId, dwFlags, pvAuxInfo, pInfo, pcbInfo);
- if (hFunc)
- CryptFreeOIDFunctionAddress(hFunc, 0);
- return ret;
-}
-
-BOOL WINAPI CryptImportPublicKeyInfo(HCRYPTPROV hCryptProv,
- DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, HCRYPTKEY *phKey)
-{
- return CryptImportPublicKeyInfoEx(hCryptProv, dwCertEncodingType, pInfo,
- 0, 0, NULL, phKey);
-}
-
-static BOOL WINAPI CRYPT_ImportRsaPublicKeyInfoEx(HCRYPTPROV hCryptProv,
- DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
- DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey)
-{
- BOOL ret;
- DWORD pubKeySize = 0;
-
- TRACE("(%ld, %ld, %p, %d, %08lx, %p, %p)\n", hCryptProv,
- dwCertEncodingType, pInfo, aiKeyAlg, dwFlags, pvAuxInfo, phKey);
-
- ret = CryptDecodeObject(dwCertEncodingType, RSA_CSP_PUBLICKEYBLOB,
- pInfo->PublicKey.pbData, pInfo->PublicKey.cbData, 0, NULL, &pubKeySize);
- if (ret)
- {
- LPBYTE pubKey = CryptMemAlloc(pubKeySize);
-
- if (pubKey)
- {
- ret = CryptDecodeObject(dwCertEncodingType, RSA_CSP_PUBLICKEYBLOB,
- pInfo->PublicKey.pbData, pInfo->PublicKey.cbData, 0, pubKey,
- &pubKeySize);
- if (ret)
- ret = CryptImportKey(hCryptProv, pubKey, pubKeySize, 0, 0,
- phKey);
- CryptMemFree(pubKey);
- }
- else
- ret = FALSE;
- }
- return ret;
-}
-
-typedef BOOL (WINAPI *ImportPublicKeyInfoExFunc)(HCRYPTPROV hCryptProv,
- DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
- DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey);
-
-BOOL WINAPI CryptImportPublicKeyInfoEx(HCRYPTPROV hCryptProv,
- DWORD dwCertEncodingType, PCERT_PUBLIC_KEY_INFO pInfo, ALG_ID aiKeyAlg,
- DWORD dwFlags, void *pvAuxInfo, HCRYPTKEY *phKey)
-{
- static HCRYPTOIDFUNCSET set = NULL;
- BOOL ret;
- ImportPublicKeyInfoExFunc importFunc = NULL;
- HCRYPTOIDFUNCADDR hFunc = NULL;
-
- TRACE("(%ld, %ld, %p, %d, %08lx, %p, %p)\n", hCryptProv,
- dwCertEncodingType, pInfo, aiKeyAlg, dwFlags, pvAuxInfo, phKey);
-
- if (!set)
- set = CryptInitOIDFunctionSet(CRYPT_OID_IMPORT_PUBLIC_KEY_INFO_FUNC, 0);
- CryptGetOIDFunctionAddress(set, dwCertEncodingType,
- pInfo->Algorithm.pszObjId, 0, (void **)&importFunc, &hFunc);
- if (!importFunc)
- importFunc = CRYPT_ImportRsaPublicKeyInfoEx;
- ret = importFunc(hCryptProv, dwCertEncodingType, pInfo, aiKeyAlg, dwFlags,
- pvAuxInfo, phKey);
- if (hFunc)
- CryptFreeOIDFunctionAddress(hFunc, 0);
- return ret;
-}
projects / reactos.git / blobdiff