mbedtls/tests/suites/test_suite_cipher.function

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BEGIN_HEADER
#include <polarssl/config.h>
#include <polarssl/cipher.h>
END_HEADER
BEGIN_CASE
enc_dec_buf:cipher_id:cipher_string:key_len:length:
int length = {length};
unsigned char key[32];
unsigned char iv[16];
const cipher_info_t *cipher_info;
cipher_context_t ctx_dec;
cipher_context_t ctx_enc;
unsigned char inbuf[64];
unsigned char encbuf[64];
unsigned char decbuf[64];
int outlen = 0;
int enclen = 0;
memset( key, 0, 32 );
memset( iv , 0, 16 );
memset( &ctx_dec, 0, sizeof( ctx_dec ) );
memset( &ctx_enc, 0, sizeof( ctx_enc ) );
memset( inbuf, 5, 64 );
memset( encbuf, 0, 64 );
memset( decbuf, 0, 64 );
/* Check and get info structures */
cipher_info = cipher_info_from_type( {cipher_id} );
TEST_ASSERT( NULL != cipher_info );
TEST_ASSERT( cipher_info_from_string( "{cipher_string}" ) == cipher_info );
/* Initialise enc and dec contexts */
TEST_ASSERT( 0 == cipher_init_ctx( &ctx_dec, cipher_info ) );
TEST_ASSERT( 0 == cipher_init_ctx( &ctx_enc, cipher_info ) );
TEST_ASSERT( 0 == cipher_setkey( &ctx_dec, key, {key_len}, POLARSSL_DECRYPT ) );
TEST_ASSERT( 0 == cipher_setkey( &ctx_enc, key, {key_len}, POLARSSL_ENCRYPT ) );
TEST_ASSERT( 0 == cipher_reset( &ctx_dec, iv ) );
TEST_ASSERT( 0 == cipher_reset( &ctx_enc, iv ) );
enclen = cipher_get_block_size( &ctx_enc )
* ( 1 + length / cipher_get_block_size( &ctx_enc ) );
/* encode length number of bytes from inbuf */
TEST_ASSERT( 0 == cipher_update( &ctx_enc, inbuf, length, encbuf, &outlen ) );
TEST_ASSERT( outlen == enclen - cipher_get_block_size ( &ctx_enc ) );
TEST_ASSERT( 0 == cipher_finish( &ctx_enc, encbuf + outlen, &outlen ) );
TEST_ASSERT( outlen == cipher_get_block_size ( &ctx_enc ) );
/* decode the previously encoded string */
TEST_ASSERT( 0 == cipher_update( &ctx_dec, encbuf, enclen, decbuf, &outlen ) );
TEST_ASSERT( enclen - cipher_get_block_size ( &ctx_enc ) == outlen );
TEST_ASSERT( 0 == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
TEST_ASSERT( length - enclen + cipher_get_block_size ( &ctx_enc ) == outlen );
TEST_ASSERT( 0 == memcmp(inbuf, decbuf, length) );
TEST_ASSERT( 0 == cipher_free_ctx( &ctx_dec ) );
TEST_ASSERT( 0 == cipher_free_ctx( &ctx_enc ) );
END_CASE
BEGIN_CASE
dec_empty_buf:
unsigned char key[32];
unsigned char iv[16];
cipher_context_t ctx_dec;
const cipher_info_t *cipher_info;
unsigned char encbuf[64];
unsigned char decbuf[64];
int outlen = 0;
memset( key, 0, 32 );
memset( iv , 0, 16 );
memset( &ctx_dec, 0, sizeof( ctx_dec ) );
memset( encbuf, 0, 64 );
memset( decbuf, 0, 64 );
/* Initialise enc and dec contexts */
cipher_info = cipher_info_from_type( POLARSSL_CIPHER_AES_128_CBC );
TEST_ASSERT( NULL != cipher_info);
TEST_ASSERT( 0 == cipher_init_ctx( &ctx_dec, cipher_info ) );
TEST_ASSERT( 0 == cipher_setkey( &ctx_dec, key, 128, POLARSSL_DECRYPT ) );
TEST_ASSERT( 0 == cipher_reset( &ctx_dec, iv ) );
/* decode 0-byte string */
TEST_ASSERT( 0 == cipher_update( &ctx_dec, encbuf, 0, decbuf, &outlen ) );
TEST_ASSERT( 0 == outlen );
TEST_ASSERT( 1 == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
TEST_ASSERT( 0 == outlen );
TEST_ASSERT( 0 == cipher_free_ctx( &ctx_dec ) );
END_CASE
BEGIN_CASE
enc_dec_buf_multipart:cipher_id:key_len:first_length:second_length:
int first_length = {first_length};
int second_length = {second_length};
int length = first_length + second_length;
unsigned char key[32];
unsigned char iv[16];
cipher_context_t ctx_dec;
cipher_context_t ctx_enc;
const cipher_info_t *cipher_info;
unsigned char inbuf[64];
unsigned char encbuf[64];
unsigned char decbuf[64];
int outlen = 0;
int totaloutlen = 0;
int enclen = 0;
memset( key, 0, 32 );
memset( iv , 0, 16 );
memset( &ctx_dec, 0, sizeof( ctx_dec ) );
memset( &ctx_enc, 0, sizeof( ctx_enc ) );
memset( inbuf, 5, 64 );
memset( encbuf, 0, 64 );
memset( decbuf, 0, 64 );
/* Initialise enc and dec contexts */
cipher_info = cipher_info_from_type( {cipher_id} );
TEST_ASSERT( NULL != cipher_info);
TEST_ASSERT( 0 == cipher_init_ctx( &ctx_dec, cipher_info ) );
TEST_ASSERT( 0 == cipher_init_ctx( &ctx_enc, cipher_info ) );
TEST_ASSERT( 0 == cipher_setkey( &ctx_dec, key, {key_len}, POLARSSL_DECRYPT ) );
TEST_ASSERT( 0 == cipher_setkey( &ctx_enc, key, {key_len}, POLARSSL_ENCRYPT ) );
TEST_ASSERT( 0 == cipher_reset( &ctx_dec, iv ) );
TEST_ASSERT( 0 == cipher_reset( &ctx_enc, iv ) );
enclen = cipher_get_block_size(&ctx_enc )
* ( 1 + length / cipher_get_block_size( &ctx_enc ) );
/* encode length number of bytes from inbuf */
TEST_ASSERT( 0 == cipher_update( &ctx_enc, inbuf, first_length, encbuf, &outlen ) );
totaloutlen = outlen;
TEST_ASSERT( 0 == cipher_update( &ctx_enc, inbuf + first_length, second_length, encbuf + totaloutlen, &outlen ) );
totaloutlen += outlen;
TEST_ASSERT( totaloutlen == enclen - cipher_get_block_size ( &ctx_enc ) );
TEST_ASSERT( 0 == cipher_finish( &ctx_enc, encbuf + totaloutlen, &outlen ) );
totaloutlen += outlen;
TEST_ASSERT( outlen == cipher_get_block_size ( &ctx_enc ) );
/* decode the previously encoded string */
TEST_ASSERT( 0 == cipher_update( &ctx_dec, encbuf, enclen, decbuf, &outlen ) );
TEST_ASSERT( enclen - cipher_get_block_size ( &ctx_enc ) == outlen );
TEST_ASSERT( 0 == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
TEST_ASSERT( length - enclen + cipher_get_block_size ( &ctx_enc ) == outlen );
TEST_ASSERT( 0 == memcmp(inbuf, decbuf, length) );
TEST_ASSERT( 0 == cipher_free_ctx( &ctx_dec ) );
TEST_ASSERT( 0 == cipher_free_ctx( &ctx_enc ) );
END_CASE
BEGIN_CASE
cipher_selftest:
{
TEST_ASSERT( cipher_self_test( 0 ) == 0 );
}
END_CASE