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cmac: improve parameter validation

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Rename validation macro to adhere to standards.
This commit is contained in:
Unknown 2018-12-24 05:10:59 -05:00
parent b1ab2db182
commit 2384f7febd
1 changed files with 20 additions and 21 deletions
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41
library/cmac.c
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@ -68,9 +68,8 @@
#if !defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST) #if !defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST)
#define MBEDTLS_CMAC_VALIDATE_RET(cond) \ #define CMAC_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ) MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA )
#define MBEDTLS_CMAC_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
/* /*
* Multiplication by u in the Galois field of GF(2^n) * Multiplication by u in the Galois field of GF(2^n)
@ -210,9 +209,9 @@ int mbedtls_cipher_cmac_starts( mbedtls_cipher_context_t *ctx,
mbedtls_cmac_context_t *cmac_ctx; mbedtls_cmac_context_t *cmac_ctx;
int retval; int retval;
MBEDTLS_CMAC_VALIDATE_RET( ctx != NULL ); CMAC_VALIDATE_RET( ctx != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cipher_info != NULL ); CMAC_VALIDATE_RET( ctx->cipher_info != NULL );
MBEDTLS_CMAC_VALIDATE_RET( key != NULL ); CMAC_VALIDATE_RET( key != NULL );
if( ( retval = mbedtls_cipher_setkey( ctx, key, (int)keybits, if( ( retval = mbedtls_cipher_setkey( ctx, key, (int)keybits,
MBEDTLS_ENCRYPT ) ) != 0 ) MBEDTLS_ENCRYPT ) ) != 0 )
@ -252,9 +251,9 @@ int mbedtls_cipher_cmac_update( mbedtls_cipher_context_t *ctx,
int ret = 0; int ret = 0;
size_t n, j, olen, block_size; size_t n, j, olen, block_size;
MBEDTLS_CMAC_VALIDATE_RET( ctx != NULL ); CMAC_VALIDATE_RET( ctx != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cipher_info != NULL ); CMAC_VALIDATE_RET( ctx->cipher_info != NULL );
MBEDTLS_CMAC_VALIDATE_RET( input != NULL ); CMAC_VALIDATE_RET( ilen == 0 || input != NULL );
cmac_ctx = ctx->cmac_ctx; cmac_ctx = ctx->cmac_ctx;
block_size = ctx->cipher_info->block_size; block_size = ctx->cipher_info->block_size;
@ -323,9 +322,9 @@ int mbedtls_cipher_cmac_finish( mbedtls_cipher_context_t *ctx,
int ret; int ret;
size_t olen, block_size; size_t olen, block_size;
MBEDTLS_CMAC_VALIDATE_RET( ctx != NULL ); CMAC_VALIDATE_RET( ctx != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cipher_info != NULL ); CMAC_VALIDATE_RET( ctx->cipher_info != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cmac_ctx != NULL ); CMAC_VALIDATE_RET( ctx->cmac_ctx != NULL );
cmac_ctx = ctx->cmac_ctx; cmac_ctx = ctx->cmac_ctx;
block_size = ctx->cipher_info->block_size; block_size = ctx->cipher_info->block_size;
@ -377,9 +376,9 @@ int mbedtls_cipher_cmac_reset( mbedtls_cipher_context_t *ctx )
{ {
mbedtls_cmac_context_t* cmac_ctx; mbedtls_cmac_context_t* cmac_ctx;
MBEDTLS_CMAC_VALIDATE_RET( ctx != NULL ); CMAC_VALIDATE_RET( ctx != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cipher_info != NULL ); CMAC_VALIDATE_RET( ctx->cipher_info != NULL );
MBEDTLS_CMAC_VALIDATE_RET( ctx->cmac_ctx != NULL ); CMAC_VALIDATE_RET( ctx->cmac_ctx != NULL );
cmac_ctx = ctx->cmac_ctx; cmac_ctx = ctx->cmac_ctx;
@ -401,10 +400,10 @@ int mbedtls_cipher_cmac( const mbedtls_cipher_info_t *cipher_info,
mbedtls_cipher_context_t ctx; mbedtls_cipher_context_t ctx;
int ret; int ret;
MBEDTLS_CMAC_VALIDATE_RET( cipher_info != NULL ); CMAC_VALIDATE_RET( cipher_info != NULL );
MBEDTLS_CMAC_VALIDATE_RET( key != NULL ); CMAC_VALIDATE_RET( key != NULL );
MBEDTLS_CMAC_VALIDATE_RET( input != NULL ); CMAC_VALIDATE_RET( ilen == 0 || input != NULL );
MBEDTLS_CMAC_VALIDATE_RET( output != NULL ); CMAC_VALIDATE_RET( output != NULL );
mbedtls_cipher_init( &ctx ); mbedtls_cipher_init( &ctx );
@ -440,9 +439,9 @@ int mbedtls_aes_cmac_prf_128( const unsigned char *key, size_t key_length,
unsigned char zero_key[MBEDTLS_AES_BLOCK_SIZE]; unsigned char zero_key[MBEDTLS_AES_BLOCK_SIZE];
unsigned char int_key[MBEDTLS_AES_BLOCK_SIZE]; unsigned char int_key[MBEDTLS_AES_BLOCK_SIZE];
MBEDTLS_CMAC_VALIDATE_RET( key != NULL ); CMAC_VALIDATE_RET( key != NULL );
MBEDTLS_CMAC_VALIDATE_RET( input != NULL ); CMAC_VALIDATE_RET( in_len == 0 || input != NULL );
MBEDTLS_CMAC_VALIDATE_RET( output != NULL ); CMAC_VALIDATE_RET( output != NULL );
cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB ); cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB );
if( cipher_info == NULL ) if( cipher_info == NULL )