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Make some cipher parameter validation unconditional

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This commit is contained in:
k-stachowiak 2018-12-19 14:48:37 +01:00
parent 6df25e7930
commit 95070a8286
3 changed files with 88 additions and 76 deletions
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24
include/mbedtls/cipher.h
View file

@ -428,7 +428,8 @@ static inline unsigned int mbedtls_cipher_get_block_size(
const mbedtls_cipher_context_t *ctx )
{
MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
MBEDTLS_INTERNAL_VALIDATE_RET( ctx->cipher_info != NULL, 0 );
if( ctx->cipher_info == NULL )
return 0;
return ctx->cipher_info->block_size;
}
@ -446,7 +447,8 @@ static inline mbedtls_cipher_mode_t mbedtls_cipher_get_cipher_mode(
const mbedtls_cipher_context_t *ctx )
{
MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, MBEDTLS_MODE_NONE );
MBEDTLS_INTERNAL_VALIDATE_RET( ctx->cipher_info != NULL, MBEDTLS_MODE_NONE );
if( ctx->cipher_info == NULL )
return MBEDTLS_MODE_NONE;
return ctx->cipher_info->mode;
}
@ -465,7 +467,8 @@ static inline int mbedtls_cipher_get_iv_size(
const mbedtls_cipher_context_t *ctx )
{
MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
MBEDTLS_INTERNAL_VALIDATE_RET( ctx->cipher_info != NULL, 0 );
if( ctx->cipher_info == NULL )
return 0;
if( ctx->iv_size != 0 )
return (int) ctx->iv_size;
@ -486,8 +489,8 @@ static inline mbedtls_cipher_type_t mbedtls_cipher_get_type(
{
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx != NULL, MBEDTLS_CIPHER_NONE );
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx->cipher_info != NULL, MBEDTLS_CIPHER_NONE );
if( ctx->cipher_info == NULL )
return MBEDTLS_CIPHER_NONE;
return ctx->cipher_info->type;
}
@ -505,7 +508,8 @@ static inline const char *mbedtls_cipher_get_name(
const mbedtls_cipher_context_t *ctx )
{
MBEDTLS_INTERNAL_VALIDATE_RET( ctx != NULL, 0 );
MBEDTLS_INTERNAL_VALIDATE_RET( ctx->cipher_info != NULL, 0 );
if( ctx->cipher_info == NULL )
return 0;
return ctx->cipher_info->name;
}
@ -524,8 +528,8 @@ static inline int mbedtls_cipher_get_key_bitlen(
{
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx != NULL, MBEDTLS_KEY_LENGTH_NONE );
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx->cipher_info != NULL, MBEDTLS_KEY_LENGTH_NONE );
if( ctx->cipher_info == NULL )
return MBEDTLS_KEY_LENGTH_NONE;
return (int) ctx->cipher_info->key_bitlen;
}
@ -543,8 +547,8 @@ static inline mbedtls_operation_t mbedtls_cipher_get_operation(
{
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx != NULL, MBEDTLS_OPERATION_NONE );
MBEDTLS_INTERNAL_VALIDATE_RET(
ctx->cipher_info != NULL, MBEDTLS_OPERATION_NONE );
if( ctx->cipher_info == NULL )
return MBEDTLS_OPERATION_NONE;
return ctx->operation;
}

39
library/cipher.c
View file

@ -182,7 +182,8 @@ void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx )
int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( cipher_info != NULL );
if( cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
memset( ctx, 0, sizeof( mbedtls_cipher_context_t ) );
@ -211,10 +212,11 @@ int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx,
const mbedtls_operation_t operation )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( key != NULL );
CIPHER_VALIDATE_RET( operation == MBEDTLS_ENCRYPT ||
operation == MBEDTLS_DECRYPT );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
if( ( ctx->cipher_info->flags & MBEDTLS_CIPHER_VARIABLE_KEY_LEN ) == 0 &&
(int) ctx->cipher_info->key_bitlen != key_bitlen )
@ -251,8 +253,9 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
size_t actual_iv_size;
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
/* avoid buffer overflow in ctx->iv */
if( iv_len > MBEDTLS_MAX_IV_LENGTH )
@ -293,7 +296,8 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
ctx->unprocessed_len = 0;
@ -305,8 +309,9 @@ int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
const unsigned char *ad, size_t ad_len )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
#if defined(MBEDTLS_GCM_C)
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
@ -348,10 +353,11 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
size_t block_size;
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
CIPHER_VALIDATE_RET( output != NULL );
CIPHER_VALIDATE_RET( olen != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
*olen = 0;
block_size = mbedtls_cipher_get_block_size( ctx );
@ -757,9 +763,10 @@ int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx,
unsigned char *output, size_t *olen )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( output != NULL );
CIPHER_VALIDATE_RET( olen != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
*olen = 0;
@ -847,7 +854,8 @@ int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx,
mbedtls_cipher_padding_t mode )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
if( MBEDTLS_MODE_CBC != ctx->cipher_info->mode )
{
@ -898,8 +906,9 @@ int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx,
unsigned char *tag, size_t tag_len )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
if( MBEDTLS_ENCRYPT != ctx->operation )
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
@ -931,8 +940,9 @@ int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
int ret;
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
if( MBEDTLS_DECRYPT != ctx->operation )
{
@ -997,11 +1007,12 @@ int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
size_t finish_olen;
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
CIPHER_VALIDATE_RET( output != NULL );
CIPHER_VALIDATE_RET( olen != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
if( ( ret = mbedtls_cipher_set_iv( ctx, iv, iv_len ) ) != 0 )
return( ret );
@ -1032,13 +1043,14 @@ int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
unsigned char *tag, size_t tag_len )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( iv != NULL );
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
CIPHER_VALIDATE_RET( output != NULL );
CIPHER_VALIDATE_RET( olen != NULL );
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
#if defined(MBEDTLS_GCM_C)
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
@ -1088,13 +1100,14 @@ int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
const unsigned char *tag, size_t tag_len )
{
CIPHER_VALIDATE_RET( ctx != NULL );
CIPHER_VALIDATE_RET( ctx->cipher_info != NULL );
CIPHER_VALIDATE_RET( iv != NULL );
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
CIPHER_VALIDATE_RET( output != NULL );
CIPHER_VALIDATE_RET( olen != NULL );
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
if( ctx->cipher_info == NULL )
return MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
#if defined(MBEDTLS_GCM_C)
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )

101
tests/suites/test_suite_cipher.function
View file

@ -48,53 +48,49 @@ void cipher_invalid_param( )
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_setup( NULL, valid_info ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_setup( &valid_ctx, NULL ) );
TEST_ASSERT( mbedtls_cipher_setup( &valid_ctx, NULL ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
/* mbedtls_cipher_get_block_size() */
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_block_size( NULL ) );
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_block_size( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_block_size( &invalid_ctx ) == 0 );
/* mbedtls_cipher_get_cipher_mode() */
TEST_INVALID_PARAM_RET(
MBEDTLS_MODE_NONE,
mbedtls_cipher_get_cipher_mode( NULL ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_MODE_NONE,
mbedtls_cipher_get_cipher_mode( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_cipher_mode( &invalid_ctx ) ==
MBEDTLS_MODE_NONE );
/* mbedtls_cipher_get_iv_size() */
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_iv_size( NULL ) );
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_iv_size( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_iv_size( &invalid_ctx ) == 0 );
/* mbedtls_cipher_get_type() */
TEST_INVALID_PARAM_RET(
MBEDTLS_CIPHER_NONE,
mbedtls_cipher_get_type( NULL ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_CIPHER_NONE,
mbedtls_cipher_get_type( &invalid_ctx ) );
TEST_ASSERT(
mbedtls_cipher_get_type( &invalid_ctx ) ==
MBEDTLS_CIPHER_NONE);
/* mbedtls_cipher_get_name() */
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_name( NULL ) );
TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_name( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_name( &invalid_ctx ) == 0 );
/* mbedtls_cipher_get_key_bitlen() */
TEST_INVALID_PARAM_RET(
MBEDTLS_KEY_LENGTH_NONE,
mbedtls_cipher_get_key_bitlen( NULL ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_KEY_LENGTH_NONE,
mbedtls_cipher_get_key_bitlen( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_key_bitlen( &invalid_ctx ) ==
MBEDTLS_KEY_LENGTH_NONE );
/* mbedtls_cipher_get_operation() */
TEST_INVALID_PARAM_RET(
MBEDTLS_OPERATION_NONE,
mbedtls_cipher_get_operation( NULL ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_OPERATION_NONE,
mbedtls_cipher_get_operation( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_get_operation( &invalid_ctx ) ==
MBEDTLS_OPERATION_NONE );
/* mbedtls_cipher_setkey() */
TEST_INVALID_PARAM_RET(
@ -103,12 +99,12 @@ void cipher_invalid_param( )
valid_buffer,
valid_bitlen,
valid_operation ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_setkey( &invalid_ctx,
valid_buffer,
valid_bitlen,
valid_operation ) );
valid_operation ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_setkey( &valid_ctx,
@ -128,11 +124,11 @@ void cipher_invalid_param( )
mbedtls_cipher_set_iv( NULL,
valid_buffer,
valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_set_iv( &invalid_ctx,
valid_buffer,
valid_size ) );
valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_set_iv( &valid_ctx,
@ -142,8 +138,8 @@ void cipher_invalid_param( )
/* mbedtls_cipher_reset() */
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_reset( NULL ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_reset( &invalid_ctx ) );
TEST_ASSERT( mbedtls_cipher_reset( &invalid_ctx ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
/* mbedtls_cipher_update_ad() */
@ -152,11 +148,11 @@ void cipher_invalid_param( )
mbedtls_cipher_update_ad( NULL,
valid_buffer,
valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_update_ad( &invalid_ctx,
valid_buffer,
valid_size ) );
valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_update_ad( &valid_ctx,
@ -168,9 +164,8 @@ void cipher_invalid_param( )
/* mbedtls_cipher_set_padding_mode() */
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_set_padding_mode( NULL, valid_mode ) );
TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_set_padding_mode( &invalid_ctx,
valid_mode ) );
TEST_ASSERT( mbedtls_cipher_set_padding_mode( &invalid_ctx, valid_mode ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
#endif
/* mbedtls_cipher_update() */
@ -181,13 +176,13 @@ void cipher_invalid_param( )
valid_size,
valid_buffer,
&size_t_var ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_update( &invalid_ctx,
valid_buffer,
valid_size,
valid_buffer,
&size_t_var ) );
&size_t_var ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_update( &valid_ctx,
@ -213,11 +208,11 @@ void cipher_invalid_param( )
mbedtls_cipher_finish( NULL,
valid_buffer,
&size_t_var ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_finish( &invalid_ctx,
valid_buffer,
&size_t_var ) );
&size_t_var ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_finish( &valid_ctx,
@ -236,11 +231,11 @@ void cipher_invalid_param( )
mbedtls_cipher_write_tag( NULL,
valid_buffer,
valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_write_tag( &invalid_ctx,
valid_buffer,
valid_size ) );
valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_write_tag( &valid_ctx,
@ -253,11 +248,11 @@ void cipher_invalid_param( )
mbedtls_cipher_check_tag( NULL,
valid_buffer,
valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_check_tag( &invalid_ctx,
valid_buffer,
valid_size ) );
valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_check_tag( &valid_ctx,
@ -272,12 +267,12 @@ void cipher_invalid_param( )
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, &size_t_var ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_crypt( &invalid_ctx,
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, &size_t_var ) );
valid_buffer, &size_t_var ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_crypt( &valid_ctx,
@ -313,14 +308,14 @@ void cipher_invalid_param( )
valid_buffer, valid_size,
valid_buffer, &size_t_var,
valid_buffer, valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_auth_encrypt( &invalid_ctx,
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, &size_t_var,
valid_buffer, valid_size ) );
valid_buffer, valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_auth_encrypt( &valid_ctx,
@ -379,14 +374,14 @@ void cipher_invalid_param( )
valid_buffer, valid_size,
valid_buffer, &size_t_var,
valid_buffer, valid_size ) );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
TEST_ASSERT(
mbedtls_cipher_auth_decrypt( &invalid_ctx,
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, valid_size,
valid_buffer, &size_t_var,
valid_buffer, valid_size ) );
valid_buffer, valid_size ) ==
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
TEST_INVALID_PARAM_RET(
MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_cipher_auth_decrypt( &valid_ctx,