|  | /* BEGIN_HEADER */ | 
|  | #include "mbedtls/cipher.h" | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) | 
|  | #include "mbedtls/gcm.h" | 
|  | #endif | 
|  |  | 
|  | #if defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | #include "psa_crypto_helpers.h" | 
|  | #endif | 
|  |  | 
|  | /* END_HEADER */ | 
|  |  | 
|  | /* BEGIN_DEPENDENCIES | 
|  | * depends_on:MBEDTLS_CIPHER_C | 
|  | * END_DEPENDENCIES | 
|  | */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void mbedtls_cipher_list(  ) | 
|  | { | 
|  | const int *cipher_type; | 
|  |  | 
|  | for( cipher_type = mbedtls_cipher_list(); *cipher_type != 0; cipher_type++ ) | 
|  | TEST_ASSERT( mbedtls_cipher_info_from_type( *cipher_type ) != NULL ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void cipher_invalid_param_unconditional( ) | 
|  | { | 
|  | mbedtls_cipher_context_t valid_ctx; | 
|  | mbedtls_cipher_context_t invalid_ctx; | 
|  | mbedtls_operation_t valid_operation = MBEDTLS_ENCRYPT; | 
|  | mbedtls_cipher_padding_t valid_mode = MBEDTLS_PADDING_ZEROS; | 
|  | unsigned char valid_buffer[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; | 
|  | int valid_size = sizeof(valid_buffer); | 
|  | int valid_bitlen = valid_size * 8; | 
|  | const mbedtls_cipher_info_t *valid_info = mbedtls_cipher_info_from_type( | 
|  | *( mbedtls_cipher_list() ) ); | 
|  | size_t size_t_var; | 
|  |  | 
|  | (void)valid_mode; /* In some configurations this is unused */ | 
|  |  | 
|  | mbedtls_cipher_init( &valid_ctx ); | 
|  | mbedtls_cipher_setup( &valid_ctx, valid_info ); | 
|  | mbedtls_cipher_init( &invalid_ctx ); | 
|  |  | 
|  | /* mbedtls_cipher_setup() */ | 
|  | TEST_ASSERT( mbedtls_cipher_setup( &valid_ctx, NULL ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* mbedtls_cipher_get_block_size() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_block_size( &invalid_ctx ) == 0 ); | 
|  |  | 
|  | /* mbedtls_cipher_get_cipher_mode() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_cipher_mode( &invalid_ctx ) == | 
|  | MBEDTLS_MODE_NONE ); | 
|  |  | 
|  | /* mbedtls_cipher_get_iv_size() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_iv_size( &invalid_ctx ) == 0 ); | 
|  |  | 
|  | /* mbedtls_cipher_get_type() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_get_type( &invalid_ctx ) == | 
|  | MBEDTLS_CIPHER_NONE); | 
|  |  | 
|  | /* mbedtls_cipher_get_name() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_name( &invalid_ctx ) == 0 ); | 
|  |  | 
|  | /* mbedtls_cipher_get_key_bitlen() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_key_bitlen( &invalid_ctx ) == | 
|  | MBEDTLS_KEY_LENGTH_NONE ); | 
|  |  | 
|  | /* mbedtls_cipher_get_operation() */ | 
|  | TEST_ASSERT( mbedtls_cipher_get_operation( &invalid_ctx ) == | 
|  | MBEDTLS_OPERATION_NONE ); | 
|  |  | 
|  | /* mbedtls_cipher_setkey() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_setkey( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_bitlen, | 
|  | valid_operation ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* mbedtls_cipher_set_iv() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_set_iv( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_size ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* mbedtls_cipher_reset() */ | 
|  | 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() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_update_ad( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_size ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  | #endif /* defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | /* mbedtls_cipher_set_padding_mode() */ | 
|  | TEST_ASSERT( mbedtls_cipher_set_padding_mode( &invalid_ctx, valid_mode ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  | #endif | 
|  |  | 
|  | /* mbedtls_cipher_update() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_update( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_size, | 
|  | valid_buffer, | 
|  | &size_t_var ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* mbedtls_cipher_finish() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_finish( &invalid_ctx, | 
|  | valid_buffer, | 
|  | &size_t_var ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | /* mbedtls_cipher_write_tag() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_write_tag( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_size ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | /* mbedtls_cipher_check_tag() */ | 
|  | TEST_ASSERT( | 
|  | mbedtls_cipher_check_tag( &invalid_ctx, | 
|  | valid_buffer, | 
|  | valid_size ) == | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  | #endif /* defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) */ | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &invalid_ctx ); | 
|  | mbedtls_cipher_free( &valid_ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */ | 
|  | void cipher_invalid_param_conditional( ) | 
|  | { | 
|  | mbedtls_cipher_context_t valid_ctx; | 
|  |  | 
|  | mbedtls_operation_t valid_operation = MBEDTLS_ENCRYPT; | 
|  | mbedtls_operation_t invalid_operation = 100; | 
|  | mbedtls_cipher_padding_t valid_mode = MBEDTLS_PADDING_ZEROS; | 
|  | unsigned char valid_buffer[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }; | 
|  | int valid_size = sizeof(valid_buffer); | 
|  | int valid_bitlen = valid_size * 8; | 
|  | const mbedtls_cipher_info_t *valid_info = mbedtls_cipher_info_from_type( | 
|  | *( mbedtls_cipher_list() ) ); | 
|  |  | 
|  | size_t size_t_var; | 
|  |  | 
|  | (void)valid_mode; /* In some configurations this is unused */ | 
|  |  | 
|  | /* mbedtls_cipher_init() */ | 
|  | TEST_VALID_PARAM( mbedtls_cipher_init( &valid_ctx ) ); | 
|  | TEST_INVALID_PARAM( mbedtls_cipher_init( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_setup() */ | 
|  | TEST_VALID_PARAM( mbedtls_cipher_setup( &valid_ctx, valid_info ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_setup( NULL, valid_info ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_block_size() */ | 
|  | TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_block_size( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_cipher_mode() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_MODE_NONE, | 
|  | mbedtls_cipher_get_cipher_mode( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_iv_size() */ | 
|  | TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_iv_size( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_type() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_CIPHER_NONE, | 
|  | mbedtls_cipher_get_type( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_name() */ | 
|  | TEST_INVALID_PARAM_RET( 0, mbedtls_cipher_get_name( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_key_bitlen() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_KEY_LENGTH_NONE, | 
|  | mbedtls_cipher_get_key_bitlen( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_get_operation() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_OPERATION_NONE, | 
|  | mbedtls_cipher_get_operation( NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_setkey() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_setkey( NULL, | 
|  | valid_buffer, | 
|  | valid_bitlen, | 
|  | valid_operation ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_setkey( &valid_ctx, | 
|  | NULL, | 
|  | valid_bitlen, | 
|  | valid_operation ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_setkey( &valid_ctx, | 
|  | valid_buffer, | 
|  | valid_bitlen, | 
|  | invalid_operation ) ); | 
|  |  | 
|  | /* mbedtls_cipher_set_iv() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_set_iv( NULL, | 
|  | valid_buffer, | 
|  | valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_set_iv( &valid_ctx, | 
|  | NULL, | 
|  | valid_size ) ); | 
|  |  | 
|  | /* mbedtls_cipher_reset() */ | 
|  | TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_reset( NULL ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | /* mbedtls_cipher_update_ad() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update_ad( NULL, | 
|  | valid_buffer, | 
|  | valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update_ad( &valid_ctx, | 
|  | NULL, | 
|  | valid_size ) ); | 
|  | #endif /* defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) */ | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | /* mbedtls_cipher_set_padding_mode() */ | 
|  | TEST_INVALID_PARAM_RET( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_set_padding_mode( NULL, valid_mode ) ); | 
|  | #endif | 
|  |  | 
|  | /* mbedtls_cipher_update() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update( NULL, | 
|  | valid_buffer, | 
|  | valid_size, | 
|  | valid_buffer, | 
|  | &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update( &valid_ctx, | 
|  | NULL, valid_size, | 
|  | valid_buffer, | 
|  | &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | NULL, | 
|  | &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_update( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, | 
|  | NULL ) ); | 
|  |  | 
|  | /* mbedtls_cipher_finish() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_finish( NULL, | 
|  | valid_buffer, | 
|  | &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_finish( &valid_ctx, | 
|  | NULL, | 
|  | &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_finish( &valid_ctx, | 
|  | valid_buffer, | 
|  | NULL ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | /* mbedtls_cipher_write_tag() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_write_tag( NULL, | 
|  | valid_buffer, | 
|  | valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_write_tag( &valid_ctx, | 
|  | NULL, | 
|  | valid_size ) ); | 
|  |  | 
|  | /* mbedtls_cipher_check_tag() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_check_tag( NULL, | 
|  | valid_buffer, | 
|  | valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_check_tag( &valid_ctx, | 
|  | NULL, | 
|  | valid_size ) ); | 
|  | #endif /* defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) */ | 
|  |  | 
|  | /* mbedtls_cipher_crypt() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_crypt( NULL, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_crypt( &valid_ctx, | 
|  | NULL, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_crypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | NULL, valid_size, | 
|  | valid_buffer, &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_crypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | NULL, &size_t_var ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_crypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, NULL ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_AEAD) | 
|  | /* mbedtls_cipher_auth_encrypt() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( NULL, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | NULL, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | NULL, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | NULL, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | NULL, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, NULL, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_encrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | NULL, valid_size ) ); | 
|  |  | 
|  | /* mbedtls_cipher_auth_decrypt() */ | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( NULL, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | NULL, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | NULL, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | NULL, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | NULL, &size_t_var, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, NULL, | 
|  | valid_buffer, valid_size ) ); | 
|  | TEST_INVALID_PARAM_RET( | 
|  | MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, | 
|  | mbedtls_cipher_auth_decrypt( &valid_ctx, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, valid_size, | 
|  | valid_buffer, &size_t_var, | 
|  | NULL, valid_size ) ); | 
|  | #endif /* defined(MBEDTLS_CIPHER_MODE_AEAD) */ | 
|  |  | 
|  | /* mbedtls_cipher_free() */ | 
|  | TEST_VALID_PARAM( mbedtls_cipher_free( NULL ) ); | 
|  | exit: | 
|  | TEST_VALID_PARAM( mbedtls_cipher_free( &valid_ctx ) ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_AES_C */ | 
|  | void cipher_special_behaviours(  ) | 
|  | { | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  | mbedtls_cipher_context_t ctx; | 
|  | unsigned char input[32]; | 
|  | unsigned char output[32]; | 
|  | #if defined (MBEDTLS_CIPHER_MODE_CBC) | 
|  | unsigned char iv[32]; | 
|  | #endif | 
|  | size_t olen = 0; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  | memset( input, 0, sizeof( input ) ); | 
|  | memset( output, 0, sizeof( output ) ); | 
|  | #if defined(MBEDTLS_CIPHER_MODE_CBC) | 
|  | memset( iv, 0, sizeof( iv ) ); | 
|  |  | 
|  | /* Check and get info structures */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_CBC ); | 
|  | TEST_ASSERT( NULL != cipher_info ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, cipher_info ) ); | 
|  |  | 
|  | /* IV too big */ | 
|  | TEST_ASSERT( mbedtls_cipher_set_iv( &ctx, iv, MBEDTLS_MAX_IV_LENGTH + 1 ) | 
|  | == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE ); | 
|  |  | 
|  | /* IV too small */ | 
|  | TEST_ASSERT( mbedtls_cipher_set_iv( &ctx, iv, 0 ) | 
|  | == MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA ); | 
|  |  | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | mbedtls_cipher_init( &ctx ); | 
|  | #endif /* MBEDTLS_CIPHER_MODE_CBC */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB ); | 
|  | TEST_ASSERT( NULL != cipher_info ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, cipher_info ) ); | 
|  |  | 
|  | /* Update ECB with partial block */ | 
|  | TEST_ASSERT( mbedtls_cipher_update( &ctx, input, 1, output, &olen ) | 
|  | == MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void enc_dec_buf( int cipher_id, char * cipher_string, int key_len, | 
|  | int length_val, int pad_mode ) | 
|  | { | 
|  | size_t length = length_val, outlen, total_len, i, block_size; | 
|  | unsigned char key[64]; | 
|  | unsigned char iv[16]; | 
|  | unsigned char ad[13]; | 
|  | unsigned char tag[16]; | 
|  | unsigned char inbuf[64]; | 
|  | unsigned char encbuf[64]; | 
|  | unsigned char decbuf[64]; | 
|  |  | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  | mbedtls_cipher_context_t ctx_dec; | 
|  | mbedtls_cipher_context_t ctx_enc; | 
|  |  | 
|  | /* | 
|  | * Prepare contexts | 
|  | */ | 
|  | mbedtls_cipher_init( &ctx_dec ); | 
|  | mbedtls_cipher_init( &ctx_enc ); | 
|  |  | 
|  | memset( key, 0x2a, sizeof( key ) ); | 
|  |  | 
|  | /* Check and get info structures */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( cipher_id ); | 
|  | TEST_ASSERT( NULL != cipher_info ); | 
|  | TEST_ASSERT( mbedtls_cipher_info_from_string( cipher_string ) == cipher_info ); | 
|  |  | 
|  | /* Initialise enc and dec contexts */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_dec, cipher_info ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_enc, cipher_info ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx_dec, key, key_len, MBEDTLS_DECRYPT ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx_enc, key, key_len, MBEDTLS_ENCRYPT ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | if( -1 != pad_mode ) | 
|  | { | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx_dec, pad_mode ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx_enc, pad_mode ) ); | 
|  | } | 
|  | #else | 
|  | (void) pad_mode; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  |  | 
|  | /* | 
|  | * Do a few encode/decode cycles | 
|  | */ | 
|  | for( i = 0; i < 3; i++ ) | 
|  | { | 
|  | memset( iv , 0x00 + i, sizeof( iv ) ); | 
|  | memset( ad, 0x10 + i, sizeof( ad ) ); | 
|  | memset( inbuf, 0x20 + i, sizeof( inbuf ) ); | 
|  |  | 
|  | memset( encbuf, 0, sizeof( encbuf ) ); | 
|  | memset( decbuf, 0, sizeof( decbuf ) ); | 
|  | memset( tag, 0, sizeof( tag ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx_dec, iv, sizeof( iv ) ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx_enc, iv, sizeof( iv ) ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx_dec ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx_enc ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx_dec, ad, sizeof( ad ) - i ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx_enc, ad, sizeof( ad ) - i ) ); | 
|  | #endif | 
|  |  | 
|  | block_size = mbedtls_cipher_get_block_size( &ctx_enc ); | 
|  | TEST_ASSERT( block_size != 0 ); | 
|  |  | 
|  | /* encode length number of bytes from inbuf */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_enc, inbuf, length, encbuf, &outlen ) ); | 
|  | total_len = outlen; | 
|  |  | 
|  | TEST_ASSERT( total_len == length || | 
|  | ( total_len % block_size == 0 && | 
|  | total_len < length && | 
|  | total_len + block_size > length ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_finish( &ctx_enc, encbuf + outlen, &outlen ) ); | 
|  | total_len += outlen; | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_write_tag( &ctx_enc, tag, sizeof( tag ) ) ); | 
|  | #endif | 
|  |  | 
|  | TEST_ASSERT( total_len == length || | 
|  | ( total_len % block_size == 0 && | 
|  | total_len > length && | 
|  | total_len <= length + block_size ) ); | 
|  |  | 
|  | /* decode the previously encoded string */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_dec, encbuf, total_len, decbuf, &outlen ) ); | 
|  | total_len = outlen; | 
|  |  | 
|  | TEST_ASSERT( total_len == length || | 
|  | ( total_len % block_size == 0 && | 
|  | total_len < length && | 
|  | total_len + block_size >= length ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) ); | 
|  | total_len += outlen; | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_check_tag( &ctx_dec, tag, sizeof( tag ) ) ); | 
|  | #endif | 
|  |  | 
|  | /* check result */ | 
|  | TEST_ASSERT( total_len == length ); | 
|  | TEST_ASSERT( 0 == memcmp(inbuf, decbuf, length) ); | 
|  | } | 
|  |  | 
|  | /* | 
|  | * Done | 
|  | */ | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx_dec ); | 
|  | mbedtls_cipher_free( &ctx_enc ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void enc_fail( int cipher_id, int pad_mode, int key_len, int length_val, | 
|  | int ret ) | 
|  | { | 
|  | size_t length = length_val; | 
|  | unsigned char key[32]; | 
|  | unsigned char iv[16]; | 
|  |  | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  | mbedtls_cipher_context_t ctx; | 
|  |  | 
|  | unsigned char inbuf[64]; | 
|  | unsigned char encbuf[64]; | 
|  |  | 
|  | size_t outlen = 0; | 
|  |  | 
|  | memset( key, 0, 32 ); | 
|  | memset( iv , 0, 16 ); | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  |  | 
|  | memset( inbuf, 5, 64 ); | 
|  | memset( encbuf, 0, 64 ); | 
|  |  | 
|  | /* Check and get info structures */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( cipher_id ); | 
|  | TEST_ASSERT( NULL != cipher_info ); | 
|  |  | 
|  | /* Initialise context */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, cipher_info ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key, key_len, MBEDTLS_ENCRYPT ) ); | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx, pad_mode ) ); | 
|  | #else | 
|  | (void) pad_mode; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx, iv, 16 ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx ) ); | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx, NULL, 0 ) ); | 
|  | #endif | 
|  |  | 
|  | /* encode length number of bytes from inbuf */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx, inbuf, length, encbuf, &outlen ) ); | 
|  | TEST_ASSERT( ret == mbedtls_cipher_finish( &ctx, encbuf + outlen, &outlen ) ); | 
|  |  | 
|  | /* done */ | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void dec_empty_buf( int cipher ) | 
|  | { | 
|  | unsigned char key[32]; | 
|  | unsigned char iv[16]; | 
|  |  | 
|  | mbedtls_cipher_context_t ctx_dec; | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  |  | 
|  | unsigned char encbuf[64]; | 
|  | unsigned char decbuf[64]; | 
|  |  | 
|  | size_t outlen = 0; | 
|  |  | 
|  | int expected_ret; | 
|  |  | 
|  | memset( key, 0, 32 ); | 
|  | memset( iv , 0, 16 ); | 
|  |  | 
|  | mbedtls_cipher_init( &ctx_dec ); | 
|  |  | 
|  | memset( encbuf, 0, 64 ); | 
|  | memset( decbuf, 0, 64 ); | 
|  |  | 
|  | /* Initialise context */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( cipher ); | 
|  | TEST_ASSERT( NULL != cipher_info); | 
|  | TEST_ASSERT( sizeof(key) * 8 >= cipher_info->key_bitlen ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_dec, cipher_info ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx_dec, | 
|  | key, cipher_info->key_bitlen, | 
|  | MBEDTLS_DECRYPT ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx_dec, iv, 16 ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx_dec ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx_dec, NULL, 0 ) ); | 
|  | #endif | 
|  |  | 
|  | /* decode 0-byte string */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_dec, encbuf, 0, decbuf, &outlen ) ); | 
|  | TEST_ASSERT( 0 == outlen ); | 
|  |  | 
|  | if ( cipher_info->mode == MBEDTLS_MODE_CBC || | 
|  | cipher_info->mode == MBEDTLS_MODE_ECB ) | 
|  | { | 
|  | /* CBC and ECB ciphers need a full block of input. */ | 
|  | expected_ret = MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED; | 
|  | } | 
|  | else | 
|  | { | 
|  | /* Non-CBC and non-ECB ciphers are OK with decrypting empty buffers and | 
|  | * return success, not MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED, when | 
|  | * decrypting an empty buffer. */ | 
|  | expected_ret = 0; | 
|  | } | 
|  |  | 
|  | TEST_ASSERT( expected_ret == mbedtls_cipher_finish( | 
|  | &ctx_dec, decbuf + outlen, &outlen ) ); | 
|  | TEST_ASSERT( 0 == outlen ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx_dec ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void enc_dec_buf_multipart( int cipher_id, int key_len, int first_length_val, | 
|  | int second_length_val, int pad_mode, | 
|  | int first_encrypt_output_len, int second_encrypt_output_len, | 
|  | int first_decrypt_output_len, int second_decrypt_output_len ) | 
|  | { | 
|  | size_t first_length = first_length_val; | 
|  | size_t second_length = second_length_val; | 
|  | size_t length = first_length + second_length; | 
|  | size_t block_size; | 
|  | unsigned char key[32]; | 
|  | unsigned char iv[16]; | 
|  |  | 
|  | mbedtls_cipher_context_t ctx_dec; | 
|  | mbedtls_cipher_context_t ctx_enc; | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  |  | 
|  | unsigned char inbuf[64]; | 
|  | unsigned char encbuf[64]; | 
|  | unsigned char decbuf[64]; | 
|  |  | 
|  | size_t outlen = 0; | 
|  | size_t totaloutlen = 0; | 
|  |  | 
|  | memset( key, 0, 32 ); | 
|  | memset( iv , 0, 16 ); | 
|  |  | 
|  | mbedtls_cipher_init( &ctx_dec ); | 
|  | mbedtls_cipher_init( &ctx_enc ); | 
|  |  | 
|  | memset( inbuf, 5, 64 ); | 
|  | memset( encbuf, 0, 64 ); | 
|  | memset( decbuf, 0, 64 ); | 
|  |  | 
|  | /* Initialise enc and dec contexts */ | 
|  | cipher_info = mbedtls_cipher_info_from_type( cipher_id ); | 
|  | TEST_ASSERT( NULL != cipher_info); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_dec, cipher_info ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx_enc, cipher_info ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx_dec, key, key_len, MBEDTLS_DECRYPT ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx_enc, key, key_len, MBEDTLS_ENCRYPT ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | if( -1 != pad_mode ) | 
|  | { | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx_dec, pad_mode ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx_enc, pad_mode ) ); | 
|  | } | 
|  | #else | 
|  | (void) pad_mode; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx_dec, iv, 16 ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx_enc, iv, 16 ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx_dec ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx_enc ) ); | 
|  |  | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx_dec, NULL, 0 ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx_enc, NULL, 0 ) ); | 
|  | #endif | 
|  |  | 
|  | block_size = mbedtls_cipher_get_block_size( &ctx_enc ); | 
|  | TEST_ASSERT( block_size != 0 ); | 
|  |  | 
|  | /* encode length number of bytes from inbuf */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_enc, inbuf, first_length, encbuf, &outlen ) ); | 
|  | TEST_ASSERT( (size_t)first_encrypt_output_len == outlen ); | 
|  | totaloutlen = outlen; | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_enc, inbuf + first_length, second_length, encbuf + totaloutlen, &outlen ) ); | 
|  | TEST_ASSERT( (size_t)second_encrypt_output_len == outlen ); | 
|  | totaloutlen += outlen; | 
|  | TEST_ASSERT( totaloutlen == length || | 
|  | ( totaloutlen % block_size == 0 && | 
|  | totaloutlen < length && | 
|  | totaloutlen + block_size > length ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_finish( &ctx_enc, encbuf + totaloutlen, &outlen ) ); | 
|  | totaloutlen += outlen; | 
|  | TEST_ASSERT( totaloutlen == length || | 
|  | ( totaloutlen % block_size == 0 && | 
|  | totaloutlen > length && | 
|  | totaloutlen <= length + block_size ) ); | 
|  |  | 
|  | /* decode the previously encoded string */ | 
|  | second_length = totaloutlen - first_length; | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_dec, encbuf, first_length, decbuf, &outlen ) ); | 
|  | TEST_ASSERT( (size_t)first_decrypt_output_len == outlen ); | 
|  | totaloutlen = outlen; | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx_dec, encbuf + first_length, second_length, decbuf + totaloutlen, &outlen ) ); | 
|  | TEST_ASSERT( (size_t)second_decrypt_output_len == outlen ); | 
|  | totaloutlen += outlen; | 
|  |  | 
|  | TEST_ASSERT( totaloutlen == length || | 
|  | ( totaloutlen % block_size == 0 && | 
|  | totaloutlen < length && | 
|  | totaloutlen + block_size >= length ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_finish( &ctx_dec, decbuf + totaloutlen, &outlen ) ); | 
|  | totaloutlen += outlen; | 
|  |  | 
|  | TEST_ASSERT( totaloutlen == length ); | 
|  |  | 
|  | TEST_ASSERT( 0 == memcmp(inbuf, decbuf, length) ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx_dec ); | 
|  | mbedtls_cipher_free( &ctx_enc ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void decrypt_test_vec( int cipher_id, int pad_mode, data_t * key, | 
|  | data_t * iv, data_t * cipher, | 
|  | data_t * clear, data_t * ad, data_t * tag, | 
|  | int finish_result, int tag_result ) | 
|  | { | 
|  | unsigned char output[265]; | 
|  | mbedtls_cipher_context_t ctx; | 
|  | size_t outlen, total_len; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  |  | 
|  | memset( output, 0x00, sizeof( output ) ); | 
|  |  | 
|  | #if !defined(MBEDTLS_GCM_C) && !defined(MBEDTLS_CHACHAPOLY_C) | 
|  | ((void) ad); | 
|  | ((void) tag); | 
|  | #endif | 
|  |  | 
|  | /* Prepare context */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ) ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key->x, 8 * key->len, MBEDTLS_DECRYPT ) ); | 
|  | #if defined(MBEDTLS_CIPHER_MODE_WITH_PADDING) | 
|  | if( pad_mode != -1 ) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx, pad_mode ) ); | 
|  | #else | 
|  | (void) pad_mode; | 
|  | #endif /* MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_iv( &ctx, iv->x, iv->len ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_reset( &ctx ) ); | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update_ad( &ctx, ad->x, ad->len ) ); | 
|  | #endif | 
|  |  | 
|  | /* decode buffer and check tag->x */ | 
|  | total_len = 0; | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx, cipher->x, cipher->len, output, &outlen ) ); | 
|  | total_len += outlen; | 
|  | TEST_ASSERT( finish_result == mbedtls_cipher_finish( &ctx, output + outlen, | 
|  | &outlen ) ); | 
|  | total_len += outlen; | 
|  | #if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C) | 
|  | TEST_ASSERT( tag_result == mbedtls_cipher_check_tag( &ctx, tag->x, tag->len ) ); | 
|  | #endif | 
|  |  | 
|  | /* check plaintext only if everything went fine */ | 
|  | if( 0 == finish_result && 0 == tag_result ) | 
|  | { | 
|  | TEST_ASSERT( total_len == clear->len ); | 
|  | TEST_ASSERT( 0 == memcmp( output, clear->x, clear->len ) ); | 
|  | } | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_AEAD */ | 
|  | void auth_crypt_tv( int cipher_id, data_t * key, data_t * iv, | 
|  | data_t * ad, data_t * cipher, data_t * tag, | 
|  | char * result, data_t * clear, int use_psa ) | 
|  | { | 
|  | /* Takes an AEAD ciphertext + tag and performs a pair | 
|  | * of AEAD decryption and AEAD encryption. It checks that | 
|  | * this results in the expected plaintext, and that | 
|  | * decryption and encryption are inverse to one another. */ | 
|  |  | 
|  | int ret; | 
|  | unsigned char output[300];        /* Temporary buffer for results of | 
|  | * encryption and decryption. */ | 
|  | unsigned char *output_tag = NULL; /* Temporary buffer for tag in the | 
|  | * encryption step. */ | 
|  |  | 
|  | mbedtls_cipher_context_t ctx; | 
|  | size_t outlen; | 
|  |  | 
|  | unsigned char *tmp_tag    = NULL; | 
|  | unsigned char *tmp_cipher = NULL; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  | memset( output, 0xFF, sizeof( output ) ); | 
|  |  | 
|  | /* Prepare context */ | 
|  | #if !defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | (void) use_psa; | 
|  | #else | 
|  | if( use_psa == 1 ) | 
|  | { | 
|  | PSA_ASSERT( psa_crypto_init( ) ); | 
|  |  | 
|  | /* PSA requires that the tag immediately follows the ciphertext. */ | 
|  | tmp_cipher = mbedtls_calloc( 1, cipher->len + tag->len ); | 
|  | TEST_ASSERT( tmp_cipher != NULL ); | 
|  | tmp_tag = tmp_cipher + cipher->len; | 
|  |  | 
|  | memcpy( tmp_cipher, cipher->x, cipher->len ); | 
|  | memcpy( tmp_tag, tag->x, tag->len ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup_psa( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ), | 
|  | tag->len ) ); | 
|  | } | 
|  | else | 
|  | #endif | 
|  | { | 
|  | tmp_tag = tag->x; | 
|  | tmp_cipher = cipher->x; | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ) ) ); | 
|  | } | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key->x, 8 * key->len, | 
|  | MBEDTLS_DECRYPT ) ); | 
|  |  | 
|  | /* decode buffer and check tag->x */ | 
|  |  | 
|  | /* Sanity check that we don't use overly long inputs. */ | 
|  | TEST_ASSERT( sizeof( output ) >= cipher->len ); | 
|  |  | 
|  | ret = mbedtls_cipher_auth_decrypt( &ctx, iv->x, iv->len, ad->x, ad->len, | 
|  | tmp_cipher, cipher->len, output, &outlen, | 
|  | tmp_tag, tag->len ); | 
|  |  | 
|  | /* make sure the message is rejected if it should be */ | 
|  | if( strcmp( result, "FAIL" ) == 0 ) | 
|  | { | 
|  | TEST_ASSERT( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED ); | 
|  | goto exit; | 
|  | } | 
|  |  | 
|  | /* otherwise, make sure it was decrypted properly */ | 
|  | TEST_ASSERT( ret == 0 ); | 
|  |  | 
|  | TEST_ASSERT( outlen == clear->len ); | 
|  | TEST_ASSERT( memcmp( output, clear->x, clear->len ) == 0 ); | 
|  |  | 
|  | /* then encrypt the clear->x and make sure we get the same ciphertext and tag->x */ | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | #if defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | if( use_psa == 1 ) | 
|  | { | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup_psa( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ), | 
|  | tag->len ) ); | 
|  | } | 
|  | else | 
|  | #endif | 
|  | { | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ) ) ); | 
|  | } | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key->x, 8 * key->len, | 
|  | MBEDTLS_ENCRYPT ) ); | 
|  |  | 
|  | memset( output, 0xFF, sizeof( output ) ); | 
|  | outlen = 0; | 
|  |  | 
|  | /* Sanity check that we don't use overly long inputs. */ | 
|  | TEST_ASSERT( sizeof( output ) >= clear->len + tag->len ); | 
|  |  | 
|  | output_tag = output + clear->len; | 
|  | ret = mbedtls_cipher_auth_encrypt( &ctx, iv->x, iv->len, ad->x, ad->len, | 
|  | clear->x, clear->len, output, &outlen, | 
|  | output_tag, tag->len ); | 
|  | TEST_ASSERT( ret == 0 ); | 
|  |  | 
|  | TEST_ASSERT( outlen == cipher->len ); | 
|  | TEST_ASSERT( memcmp( output, cipher->x, cipher->len ) == 0 ); | 
|  | TEST_ASSERT( memcmp( output_tag, tag->x, tag->len ) == 0 ); | 
|  |  | 
|  | exit: | 
|  |  | 
|  | mbedtls_cipher_free( &ctx ); | 
|  |  | 
|  | #if defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | if( use_psa == 1 ) | 
|  | { | 
|  | mbedtls_free( tmp_cipher ); | 
|  | PSA_DONE( ); | 
|  | } | 
|  | #endif /* MBEDTLS_USE_PSA_CRYPTO */ | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE */ | 
|  | void test_vec_ecb( int cipher_id, int operation, data_t * key, | 
|  | data_t * input, data_t * result, int finish_result | 
|  | ) | 
|  | { | 
|  | mbedtls_cipher_context_t ctx; | 
|  | unsigned char output[32]; | 
|  | size_t outlen; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  |  | 
|  | memset( output, 0x00, sizeof( output ) ); | 
|  |  | 
|  | /* Prepare context */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ) ) ); | 
|  |  | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key->x, 8 * key->len, operation ) ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_update( &ctx, input->x, | 
|  | mbedtls_cipher_get_block_size( &ctx ), | 
|  | output, &outlen ) ); | 
|  | TEST_ASSERT( outlen == mbedtls_cipher_get_block_size( &ctx ) ); | 
|  | TEST_ASSERT( finish_result == mbedtls_cipher_finish( &ctx, output + outlen, | 
|  | &outlen ) ); | 
|  | TEST_ASSERT( 0 == outlen ); | 
|  |  | 
|  | /* check plaintext only if everything went fine */ | 
|  | if( 0 == finish_result ) | 
|  | TEST_ASSERT( 0 == memcmp( output, result->x, | 
|  | mbedtls_cipher_get_block_size( &ctx ) ) ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  | void test_vec_crypt( int cipher_id, int operation, char *hex_key, | 
|  | char *hex_iv, char *hex_input, char *hex_result, | 
|  | int finish_result, int use_psa ) | 
|  | { | 
|  | unsigned char key[50]; | 
|  | unsigned char input[16]; | 
|  | unsigned char result[16]; | 
|  | unsigned char iv[16]; | 
|  | size_t key_len, iv_len, inputlen, resultlen; | 
|  | mbedtls_cipher_context_t ctx; | 
|  | unsigned char output[32]; | 
|  | size_t outlen; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  |  | 
|  | memset( key, 0x00, sizeof( key ) ); | 
|  | memset( input, 0x00, sizeof( input ) ); | 
|  | memset( result, 0x00, sizeof( result ) ); | 
|  | memset( output, 0x00, sizeof( output ) ); | 
|  | memset( iv, 0x00, sizeof( iv ) ); | 
|  |  | 
|  | /* Prepare context */ | 
|  | #if !defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | (void) use_psa; | 
|  | #else | 
|  | if( use_psa == 1 ) | 
|  | { | 
|  | PSA_ASSERT( psa_crypto_init( ) ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup_psa( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ), 0 ) ); | 
|  | } | 
|  | else | 
|  | #endif /* MBEDTLS_USE_PSA_CRYPTO */ | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, | 
|  | mbedtls_cipher_info_from_type( cipher_id ) ) ); | 
|  |  | 
|  | key_len = unhexify( key, hex_key ); | 
|  | inputlen =  unhexify( input, hex_input ); | 
|  | resultlen = unhexify( result, hex_result ); | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setkey( &ctx, key, 8 * key_len, operation ) ); | 
|  | if( MBEDTLS_MODE_CBC == ctx.cipher_info->mode ) | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx, MBEDTLS_PADDING_NONE ) ); | 
|  |  | 
|  | iv_len = unhexify( iv, hex_iv ); | 
|  |  | 
|  | TEST_ASSERT( finish_result == mbedtls_cipher_crypt( &ctx, iv_len ? iv : NULL, | 
|  | iv_len, input, inputlen, | 
|  | output, &outlen ) ); | 
|  | TEST_ASSERT( resultlen == outlen ); | 
|  | /* check plaintext only if everything went fine */ | 
|  | if( 0 == finish_result ) | 
|  | TEST_ASSERT( 0 == memcmp( output, result, outlen ) ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | #if defined(MBEDTLS_USE_PSA_CRYPTO) | 
|  | PSA_DONE( ); | 
|  | #endif /* MBEDTLS_USE_PSA_CRYPTO */ | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_WITH_PADDING */ | 
|  | void set_padding( int cipher_id, int pad_mode, int ret ) | 
|  | { | 
|  | const mbedtls_cipher_info_t *cipher_info; | 
|  | mbedtls_cipher_context_t ctx; | 
|  |  | 
|  | mbedtls_cipher_init( &ctx ); | 
|  |  | 
|  | cipher_info = mbedtls_cipher_info_from_type( cipher_id ); | 
|  | TEST_ASSERT( NULL != cipher_info ); | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_setup( &ctx, cipher_info ) ); | 
|  |  | 
|  | TEST_ASSERT( ret == mbedtls_cipher_set_padding_mode( &ctx, pad_mode ) ); | 
|  |  | 
|  | exit: | 
|  | mbedtls_cipher_free( &ctx ); | 
|  | } | 
|  | /* END_CASE */ | 
|  |  | 
|  | /* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CBC */ | 
|  | void check_padding( int pad_mode, data_t * input, int ret, int dlen_check | 
|  | ) | 
|  | { | 
|  | mbedtls_cipher_info_t cipher_info; | 
|  | mbedtls_cipher_context_t ctx; | 
|  | size_t dlen; | 
|  |  | 
|  | /* build a fake context just for getting access to get_padding */ | 
|  | mbedtls_cipher_init( &ctx ); | 
|  | cipher_info.mode = MBEDTLS_MODE_CBC; | 
|  | ctx.cipher_info = &cipher_info; | 
|  |  | 
|  | TEST_ASSERT( 0 == mbedtls_cipher_set_padding_mode( &ctx, pad_mode ) ); | 
|  |  | 
|  |  | 
|  | TEST_ASSERT( ret == ctx.get_padding( input->x, input->len, &dlen ) ); | 
|  | if( 0 == ret ) | 
|  | TEST_ASSERT( dlen == (size_t) dlen_check ); | 
|  | } | 
|  | /* END_CASE */ |