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Fail if a padding disabled by the build-time configuration is selected

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron
2021-06-08 10:22:28 +02:00
parent 266b6d2121
commit 3a0375fff4
3 changed files with 29 additions and 4 deletions
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17
library/rsa.c
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@@ -500,9 +500,20 @@ void mbedtls_rsa_init( mbedtls_rsa_context *ctx )
int mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding,
mbedtls_md_type_t hash_id )
{
if( ( padding != MBEDTLS_RSA_PKCS_V15 ) &&
( padding != MBEDTLS_RSA_PKCS_V21 ) )
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
switch( padding )
{
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
break;
#endif
#if defined(MBEDTLS_PKCS1_V21)
case MBEDTLS_RSA_PKCS_V21:
break;
#endif
default:
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
}
if( ( padding == MBEDTLS_RSA_PKCS_V21 ) &&
( hash_id != MBEDTLS_MD_NONE ) )