#include "mbedtls/pk.h"
#include "mbedtls/asn1.h"
#include "mbedtls/oid.h"
+#include "mbedtls/platform_util.h"
#include <string.h>
#define mbedtls_free free
#endif
-#if defined(MBEDTLS_FS_IO) || \
- defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
- volatile unsigned char *p = v; while( n-- ) *p++ = 0;
-}
-#endif
+/* Parameter validation macros based on platform_util.h */
+#define PK_VALIDATE_RET( cond ) \
+ MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
+#define PK_VALIDATE( cond ) \
+ MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_FS_IO)
/*
FILE *f;
long size;
+ PK_VALIDATE_RET( path != NULL );
+ PK_VALIDATE_RET( buf != NULL );
+ PK_VALIDATE_RET( n != NULL );
+
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_PK_FILE_IO_ERROR );
{
fclose( f );
- mbedtls_zeroize( *buf, *n );
+ mbedtls_platform_zeroize( *buf, *n );
mbedtls_free( *buf );
return( MBEDTLS_ERR_PK_FILE_IO_ERROR );
size_t n;
unsigned char *buf;
+ PK_VALIDATE_RET( ctx != NULL );
+ PK_VALIDATE_RET( path != NULL );
+
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_pk_parse_key( ctx, buf, n,
(const unsigned char *) pwd, strlen( pwd ) );
- mbedtls_zeroize( buf, n );
+ mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
size_t n;
unsigned char *buf;
+ PK_VALIDATE_RET( ctx != NULL );
+ PK_VALIDATE_RET( path != NULL );
+
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_pk_parse_public_key( ctx, buf, n );
- mbedtls_zeroize( buf, n );
+ mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
const mbedtls_pk_info_t *pk_info;
+ PK_VALIDATE_RET( p != NULL );
+ PK_VALIDATE_RET( *p != NULL );
+ PK_VALIDATE_RET( end != NULL );
+ PK_VALIDATE_RET( pk != NULL );
+
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
{
int ret;
const mbedtls_pk_info_t *pk_info;
-
#if defined(MBEDTLS_PEM_PARSE_C)
size_t len;
mbedtls_pem_context pem;
+#endif
- mbedtls_pem_init( &pem );
+ PK_VALIDATE_RET( pk != NULL );
+ if( keylen == 0 )
+ return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
+ PK_VALIDATE_RET( key != NULL );
+
+#if defined(MBEDTLS_PEM_PARSE_C)
+ mbedtls_pem_init( &pem );
#if defined(MBEDTLS_RSA_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
- if( keylen == 0 || key[keylen - 1] != '\0' )
+ if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
#if defined(MBEDTLS_ECP_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
- if( keylen == 0 || key[keylen - 1] != '\0' )
+ if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
#endif /* MBEDTLS_ECP_C */
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
- if( keylen == 0 || key[keylen - 1] != '\0' )
+ if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
- if( keylen == 0 || key[keylen - 1] != '\0' )
+ if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
{
unsigned char *key_copy;
- if( keylen == 0 )
- return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
-
if( ( key_copy = mbedtls_calloc( 1, keylen ) ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ret = pk_parse_key_pkcs8_encrypted_der( pk, key_copy, keylen,
pwd, pwdlen );
- mbedtls_zeroize( key_copy, keylen );
+ mbedtls_platform_zeroize( key_copy, keylen );
mbedtls_free( key_copy );
}
{
int ret;
unsigned char *p;
+#if defined(MBEDTLS_RSA_C)
+ const mbedtls_pk_info_t *pk_info;
+#endif
#if defined(MBEDTLS_PEM_PARSE_C)
size_t len;
mbedtls_pem_context pem;
+#endif
+
+ PK_VALIDATE_RET( ctx != NULL );
+ if( keylen == 0 )
+ return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
+ PK_VALIDATE_RET( key != NULL || keylen == 0 );
+#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
+#if defined(MBEDTLS_RSA_C)
+ /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
+ if( key[keylen - 1] != '\0' )
+ ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
+ else
+ ret = mbedtls_pem_read_buffer( &pem,
+ "-----BEGIN RSA PUBLIC KEY-----",
+ "-----END RSA PUBLIC KEY-----",
+ key, NULL, 0, &len );
+
+ if( ret == 0 )
+ {
+ p = pem.buf;
+ if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL )
+ return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
+
+ if( ( ret = mbedtls_pk_setup( ctx, pk_info ) ) != 0 )
+ return( ret );
+
+ if ( ( ret = pk_get_rsapubkey( &p, p + pem.buflen, mbedtls_pk_rsa( *ctx ) ) ) != 0 )
+ mbedtls_pk_free( ctx );
+
+ mbedtls_pem_free( &pem );
+ return( ret );
+ }
+ else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
+ {
+ mbedtls_pem_free( &pem );
+ return( ret );
+ }
+#endif /* MBEDTLS_RSA_C */
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
- if( keylen == 0 || key[keylen - 1] != '\0' )
+ if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
/*
* Was PEM encoded
*/
- key = pem.buf;
- keylen = pem.buflen;
+ p = pem.buf;
+
+ ret = mbedtls_pk_parse_subpubkey( &p, p + pem.buflen, ctx );
+ mbedtls_pem_free( &pem );
+ return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
mbedtls_pem_free( &pem );
return( ret );
}
+ mbedtls_pem_free( &pem );
#endif /* MBEDTLS_PEM_PARSE_C */
+
+#if defined(MBEDTLS_RSA_C)
+ if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL )
+ return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
+
+ if( ( ret = mbedtls_pk_setup( ctx, pk_info ) ) != 0 )
+ return( ret );
+
+ p = (unsigned char *)key;
+ ret = pk_get_rsapubkey( &p, p + keylen, mbedtls_pk_rsa( *ctx ) );
+ if( ret == 0 )
+ {
+ return( ret );
+ }
+ mbedtls_pk_free( ctx );
+ if( ret != ( MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
+ {
+ return( ret );
+ }
+#endif /* MBEDTLS_RSA_C */
p = (unsigned char *) key;
ret = mbedtls_pk_parse_subpubkey( &p, p + keylen, ctx );
-#if defined(MBEDTLS_PEM_PARSE_C)
- mbedtls_pem_free( &pem );
-#endif
-
return( ret );
}
projects / reactos.git / blobdiff