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Add parameter validation for AES-CFB functions

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This commit is contained in:
Manuel Pégourié-Gonnard 2018-12-13 10:27:13 +01:00
parent 191af1313a
commit 1677cca54b
3 changed files with 76 additions and 1 deletions
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18
library/aes.c
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@ -1287,7 +1287,17 @@ int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx,
unsigned char *output )
{
int c;
size_t n = *iv_off;
size_t n;
AES_VALIDATE_RET( ctx != NULL );
AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
mode == MBEDTLS_AES_DECRYPT );
AES_VALIDATE_RET( iv_off != NULL );
AES_VALIDATE_RET( iv != NULL );
AES_VALIDATE_RET( input != NULL );
AES_VALIDATE_RET( output != NULL );
n = *iv_off;
if( mode == MBEDTLS_AES_DECRYPT )
{
@ -1334,6 +1344,12 @@ int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx,
unsigned char c;
unsigned char ov[17];
AES_VALIDATE_RET( ctx != NULL );
AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
mode == MBEDTLS_AES_DECRYPT );
AES_VALIDATE_RET( iv != NULL );
AES_VALIDATE_RET( input != NULL );
AES_VALIDATE_RET( output != NULL );
while( length-- )
{
memcpy( ov, iv, 16 );