reactos/dll/3rdparty/mbedtls/pkcs11.c

   1 /**
   2  * \file pkcs11.c
   3  *
   4  * \brief Wrapper for PKCS#11 library libpkcs11-helper
   5  *
   6  * \author Adriaan de Jong <dejong@fox-it.com>
   7  *
   8  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
   9  *  SPDX-License-Identifier: Apache-2.0
  10  *
  11  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
  12  *  not use this file except in compliance with the License.
  13  *  You may obtain a copy of the License at
  14  *
  15  *  http://www.apache.org/licenses/LICENSE-2.0
  16  *
  17  *  Unless required by applicable law or agreed to in writing, software
  18  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  19  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20  *  See the License for the specific language governing permissions and
  21  *  limitations under the License.
  22  *
  23  *  This file is part of mbed TLS (https://tls.mbed.org)
  24  */
  25
  26 #include "mbedtls/pkcs11.h"
  27
  28 #if defined(MBEDTLS_PKCS11_C)
  29
  30 #include "mbedtls/md.h"
  31 #include "mbedtls/oid.h"
  32 #include "mbedtls/x509_crt.h"
  33
  34 #if defined(MBEDTLS_PLATFORM_C)
  35 #include "mbedtls/platform.h"
  36 #else
  37 #include <stdlib.h>
  38 #define mbedtls_calloc    calloc
  39 #define mbedtls_free       free
  40 #endif
  41
  42 #include <string.h>
  43
  44 void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
  45 {
  46     memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
  47 }
  48
  49 int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
  50 {
  51     int ret = 1;
  52     unsigned char *cert_blob = NULL;
  53     size_t cert_blob_size = 0;
  54
  55     if( cert == NULL )
  56     {
  57         ret = 2;
  58         goto cleanup;
  59     }
  60
  61     if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
  62                                                 &cert_blob_size ) != CKR_OK )
  63     {
  64         ret = 3;
  65         goto cleanup;
  66     }
  67
  68     cert_blob = mbedtls_calloc( 1, cert_blob_size );
  69     if( NULL == cert_blob )
  70     {
  71         ret = 4;
  72         goto cleanup;
  73     }
  74
  75     if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
  76                                                 &cert_blob_size ) != CKR_OK )
  77     {
  78         ret = 5;
  79         goto cleanup;
  80     }
  81
  82     if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
  83     {
  84         ret = 6;
  85         goto cleanup;
  86     }
  87
  88     ret = 0;
  89
  90 cleanup:
  91     if( NULL != cert_blob )
  92         mbedtls_free( cert_blob );
  93
  94     return( ret );
  95 }
  96
  97
  98 int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
  99         pkcs11h_certificate_t pkcs11_cert )
 100 {
 101     int ret = 1;
 102     mbedtls_x509_crt cert;
 103
 104     mbedtls_x509_crt_init( &cert );
 105
 106     if( priv_key == NULL )
 107         goto cleanup;
 108
 109     if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
 110         goto cleanup;
 111
 112     priv_key->len = mbedtls_pk_get_len( &cert.pk );
 113     priv_key->pkcs11h_cert = pkcs11_cert;
 114
 115     ret = 0;
 116
 117 cleanup:
 118     mbedtls_x509_crt_free( &cert );
 119
 120     return( ret );
 121 }
 122
 123 void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
 124 {
 125     if( NULL != priv_key )
 126         pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
 127 }
 128
 129 int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
 130                        int mode, size_t *olen,
 131                        const unsigned char *input,
 132                        unsigned char *output,
 133                        size_t output_max_len )
 134 {
 135     size_t input_len, output_len;
 136
 137     if( NULL == ctx )
 138         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 139
 140     if( MBEDTLS_RSA_PRIVATE != mode )
 141         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 142
 143     output_len = input_len = ctx->len;
 144
 145     if( input_len < 16 || input_len > output_max_len )
 146         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 147
 148     /* Determine size of output buffer */
 149     if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
 150             input_len, NULL, &output_len ) != CKR_OK )
 151     {
 152         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 153     }
 154
 155     if( output_len > output_max_len )
 156         return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
 157
 158     if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
 159             input_len, output, &output_len ) != CKR_OK )
 160     {
 161         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 162     }
 163     *olen = output_len;
 164     return( 0 );
 165 }
 166
 167 int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
 168                     int mode,
 169                     mbedtls_md_type_t md_alg,
 170                     unsigned int hashlen,
 171                     const unsigned char *hash,
 172                     unsigned char *sig )
 173 {
 174     size_t sig_len = 0, asn_len = 0, oid_size = 0;
 175     unsigned char *p = sig;
 176     const char *oid;
 177
 178     if( NULL == ctx )
 179         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 180
 181     if( MBEDTLS_RSA_PRIVATE != mode )
 182         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 183
 184     if( md_alg != MBEDTLS_MD_NONE )
 185     {
 186         const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
 187         if( md_info == NULL )
 188             return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 189
 190         if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
 191             return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 192
 193         hashlen = mbedtls_md_get_size( md_info );
 194         asn_len = 10 + oid_size;
 195     }
 196
 197     sig_len = ctx->len;
 198     if( hashlen > sig_len || asn_len > sig_len ||
 199         hashlen + asn_len > sig_len )
 200     {
 201         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 202     }
 203
 204     if( md_alg != MBEDTLS_MD_NONE )
 205     {
 206         /*
 207          * DigestInfo ::= SEQUENCE {
 208          *   digestAlgorithm DigestAlgorithmIdentifier,
 209          *   digest Digest }
 210          *
 211          * DigestAlgorithmIdentifier ::= AlgorithmIdentifier
 212          *
 213          * Digest ::= OCTET STRING
 214          */
 215         *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
 216         *p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
 217         *p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
 218         *p++ = (unsigned char) ( 0x04 + oid_size );
 219         *p++ = MBEDTLS_ASN1_OID;
 220         *p++ = oid_size & 0xFF;
 221         memcpy( p, oid, oid_size );
 222         p += oid_size;
 223         *p++ = MBEDTLS_ASN1_NULL;
 224         *p++ = 0x00;
 225         *p++ = MBEDTLS_ASN1_OCTET_STRING;
 226         *p++ = hashlen;
 227     }
 228
 229     memcpy( p, hash, hashlen );
 230
 231     if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
 232             asn_len + hashlen, sig, &sig_len ) != CKR_OK )
 233     {
 234         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
 235     }
 236
 237     return( 0 );
 238 }
 239
 240 #endif /* defined(MBEDTLS_PKCS11_C) */