130 lines
4.1 KiB
Plaintext
130 lines
4.1 KiB
Plaintext
/* BEGIN_HEADER */
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#include "mbedtls/gcm.h"
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_GCM_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void gcm_bad_parameters( int cipher_id, int direction,
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char *hex_key_string, char *hex_src_string,
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char *hex_iv_string, char *hex_add_string,
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int tag_len_bits, int gcm_result )
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{
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unsigned char key_str[128];
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unsigned char src_str[128];
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unsigned char dst_str[257];
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unsigned char iv_str[128];
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unsigned char add_str[128];
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unsigned char tag_str[128];
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unsigned char output[128];
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unsigned char tag_output[16];
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mbedtls_gcm_context ctx;
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unsigned int key_len;
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size_t pt_len, iv_len, add_len, tag_len = tag_len_bits / 8;
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mbedtls_gcm_init( &ctx );
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memset( key_str, 0x00, sizeof( key_str ) );
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memset( src_str, 0x00, sizeof( src_str ) );
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memset( dst_str, 0x00, sizeof( dst_str ) );
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memset( iv_str, 0x00, sizeof( iv_str ) );
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memset( add_str, 0x00, sizeof( add_str ) );
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memset( tag_str, 0x00, sizeof( tag_str ) );
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memset( output, 0x00, sizeof( output ) );
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memset( tag_output, 0x00, sizeof( tag_output ) );
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key_len = unhexify( key_str, hex_key_string );
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pt_len = unhexify( src_str, hex_src_string );
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iv_len = unhexify( iv_str, hex_iv_string );
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add_len = unhexify( add_str, hex_add_string );
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TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str, key_len * 8 ) == 0 );
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TEST_ASSERT( mbedtls_gcm_crypt_and_tag( &ctx, direction, pt_len, iv_str, iv_len,
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add_str, add_len, src_str, output, tag_len, tag_output ) == gcm_result );
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exit:
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mbedtls_gcm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void gcm_encrypt_and_tag( int cipher_id, HexParam_t * key_str,
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HexParam_t * src_str, HexParam_t * iv_str,
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HexParam_t * add_str, HexParam_t * hex_dst_string,
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int tag_len_bits, HexParam_t * hex_tag_string,
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int init_result )
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{
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unsigned char output[128];
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unsigned char tag_output[16];
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mbedtls_gcm_context ctx;
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size_t tag_len = tag_len_bits / 8;
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mbedtls_gcm_init( &ctx );
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memset(output, 0x00, 128);
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memset(tag_output, 0x00, 16);
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TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str->x, key_str->len * 8 ) == init_result );
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if( init_result == 0 )
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{
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TEST_ASSERT( mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT, src_str->len, iv_str->x, iv_str->len, add_str->x, add_str->len, src_str->x, output, tag_len, tag_output ) == 0 );
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TEST_ASSERT( hexcmp( output, hex_dst_string->x, src_str->len, hex_dst_string->len ) == 0 );
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TEST_ASSERT( hexcmp( tag_output, hex_tag_string->x, tag_len, hex_tag_string->len ) == 0 );
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}
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exit:
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mbedtls_gcm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void gcm_decrypt_and_verify( int cipher_id, HexParam_t * key_str,
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HexParam_t * src_str, HexParam_t * iv_str,
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HexParam_t * add_str, int tag_len_bits,
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HexParam_t * tag_str, char * result,
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HexParam_t * pt_result, int init_result )
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{
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unsigned char output[128];
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mbedtls_gcm_context ctx;
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int ret;
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size_t tag_len = tag_len_bits / 8;
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mbedtls_gcm_init( &ctx );
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memset(output, 0x00, 128);
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TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str->x, key_str->len * 8 ) == init_result );
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if( init_result == 0 )
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{
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ret = mbedtls_gcm_auth_decrypt( &ctx, src_str->len, iv_str->x, iv_str->len, add_str->x, add_str->len, tag_str->x, tag_len, src_str->x, output );
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if( strcmp( "FAIL", result ) == 0 )
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{
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TEST_ASSERT( ret == MBEDTLS_ERR_GCM_AUTH_FAILED );
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}
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else
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{
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TEST_ASSERT( ret == 0 );
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TEST_ASSERT( hexcmp( output, pt_result->x, src_str->len, pt_result->len ) == 0 );
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}
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}
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exit:
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mbedtls_gcm_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
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void gcm_selftest( )
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{
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TEST_ASSERT( mbedtls_gcm_self_test( 1 ) == 0 );
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}
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/* END_CASE */
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