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Configuration option to enable/disable POLARSSL_PKCS1_V15 operations

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This commit is contained in:
Paul Bakker
2013-08-30 12:06:24 +02:00
parent aab30c130c
commit 48377d9834
5 changed files with 161 additions and 114 deletions
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38
library/rsa.c
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@ -128,7 +128,7 @@ cleanup:
return( POLARSSL_ERR_RSA_KEY_GEN_FAILED + ret );
}
return( 0 );
return( 0 );
}
#endif
@ -141,7 +141,7 @@ int rsa_check_pubkey( const rsa_context *ctx )
if( !ctx->N.p || !ctx->E.p )
return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
if( ( ctx->N.p[0] & 1 ) == 0 ||
if( ( ctx->N.p[0] & 1 ) == 0 ||
( ctx->E.p[0] & 1 ) == 0 )
return( POLARSSL_ERR_RSA_KEY_CHECK_FAILED );
@ -183,7 +183,7 @@ int rsa_check_privkey( const rsa_context *ctx )
MPI_CHK( mpi_gcd( &G, &ctx->E, &H ) );
MPI_CHK( mpi_gcd( &G2, &P1, &Q1 ) );
MPI_CHK( mpi_div_mpi( &L1, &L2, &H, &G2 ) );
MPI_CHK( mpi_div_mpi( &L1, &L2, &H, &G2 ) );
MPI_CHK( mpi_mod_mpi( &I, &DE, &L1 ) );
MPI_CHK( mpi_mod_mpi( &DP, &ctx->D, &P1 ) );
@ -202,7 +202,7 @@ int rsa_check_privkey( const rsa_context *ctx )
{
ret = POLARSSL_ERR_RSA_KEY_CHECK_FAILED;
}
cleanup:
mpi_free( &PQ ); mpi_free( &DE ); mpi_free( &P1 ); mpi_free( &Q1 );
mpi_free( &H ); mpi_free( &I ); mpi_free( &G ); mpi_free( &G2 );
@ -348,8 +348,8 @@ cleanup:
* \param slen length of the source buffer
* \param md_ctx message digest context to use
*/
static void mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src, size_t slen,
md_context_t *md_ctx )
static void mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src,
size_t slen, md_context_t *md_ctx )
{
unsigned char mask[POLARSSL_MD_MAX_SIZE];
unsigned char counter[4];
@ -459,6 +459,7 @@ int rsa_rsaes_oaep_encrypt( rsa_context *ctx,
}
#endif /* POLARSSL_PKCS1_V21 */
#if defined(POLARSSL_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-ENCRYPT function
*/
@ -519,6 +520,7 @@ int rsa_rsaes_pkcs1_v15_encrypt( rsa_context *ctx,
? rsa_public( ctx, output, output )
: rsa_private( ctx, f_rng, p_rng, output, output ) );
}
#endif /* POLARSSL_PKCS1_V15 */
/*
* Add the message padding, then do an RSA operation
@ -532,9 +534,11 @@ int rsa_pkcs1_encrypt( rsa_context *ctx,
{
switch( ctx->padding )
{
#if defined(POLARSSL_PKCS1_V15)
case RSA_PKCS_V15:
return rsa_rsaes_pkcs1_v15_encrypt( ctx, f_rng, p_rng, mode, ilen,
input, output );
#endif
#if defined(POLARSSL_PKCS1_V21)
case RSA_PKCS_V21:
@ -641,6 +645,7 @@ int rsa_rsaes_oaep_decrypt( rsa_context *ctx,
}
#endif /* POLARSSL_PKCS1_V21 */
#if defined(POLARSSL_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-DECRYPT function
*/
@ -735,6 +740,7 @@ int rsa_rsaes_pkcs1_v15_decrypt( rsa_context *ctx,
return( 0 );
}
#endif /* POLARSSL_PKCS1_V15 */
/*
* Do an RSA operation, then remove the message padding
@ -749,9 +755,11 @@ int rsa_pkcs1_decrypt( rsa_context *ctx,
{
switch( ctx->padding )
{
#if defined(POLARSSL_PKCS1_V15)
case RSA_PKCS_V15:
return rsa_rsaes_pkcs1_v15_decrypt( ctx, f_rng, p_rng, mode, olen,
input, output, output_max_len );
#endif
#if defined(POLARSSL_PKCS1_V21)
case RSA_PKCS_V21:
@ -863,6 +871,7 @@ int rsa_rsassa_pss_sign( rsa_context *ctx,
}
#endif /* POLARSSL_PKCS1_V21 */
#if defined(POLARSSL_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-V1_5-SIGN function
*/
@ -948,6 +957,7 @@ int rsa_rsassa_pkcs1_v15_sign( rsa_context *ctx,
? rsa_public( ctx, sig, sig )
: rsa_private( ctx, f_rng, p_rng, sig, sig ) );
}
#endif /* POLARSSL_PKCS1_V15 */
/*
* Do an RSA operation to sign the message digest
@ -963,9 +973,11 @@ int rsa_pkcs1_sign( rsa_context *ctx,
{
switch( ctx->padding )
{
#if defined(POLARSSL_PKCS1_V15)
case RSA_PKCS_V15:
return rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
#if defined(POLARSSL_PKCS1_V21)
case RSA_PKCS_V21:
@ -1091,6 +1103,7 @@ int rsa_rsassa_pss_verify( rsa_context *ctx,
}
#endif /* POLARSSL_PKCS1_V21 */
#if defined(POLARSSL_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-v1_5-VERIFY function
*/
@ -1206,6 +1219,7 @@ int rsa_rsassa_pkcs1_v15_verify( rsa_context *ctx,
return( 0 );
}
#endif /* POLARSSL_PKCS1_V15 */
/*
* Do an RSA operation and check the message digest
@ -1221,9 +1235,11 @@ int rsa_pkcs1_verify( rsa_context *ctx,
{
switch( ctx->padding )
{
#if defined(POLARSSL_PKCS1_V15)
case RSA_PKCS_V15:
return rsa_rsassa_pkcs1_v15_verify( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
#if defined(POLARSSL_PKCS1_V21)
case RSA_PKCS_V21:
@ -1339,6 +1355,7 @@ void rsa_free( rsa_context *ctx )
#define RSA_PT "\xAA\xBB\xCC\x03\x02\x01\x00\xFF\xFF\xFF\xFF\xFF" \
"\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD"
#if defined(POLARSSL_PCKS1_V15)
static int myrand( void *rng_state, unsigned char *output, size_t len )
{
size_t i;
@ -1348,15 +1365,17 @@ static int myrand( void *rng_state, unsigned char *output, size_t len )
for( i = 0; i < len; ++i )
output[i] = rand();
return( 0 );
}
#endif
/*
* Checkup routine
*/
int rsa_self_test( int verbose )
{
#if defined(POLARSSL_PCKS1_V15)
size_t len;
rsa_context rsa;
unsigned char rsa_plaintext[PT_LEN];
@ -1457,7 +1476,10 @@ int rsa_self_test( int verbose )
#endif /* POLARSSL_SHA1_C */
rsa_free( &rsa );
#else /* POLARSSL_PKCS1_V15 */
if( verbose != 0 )
printf( "skipper\n\n" );
#endif /* POLARSSL_PKCS1_V15 */
return( 0 );
}