309 lines
9.5 KiB
Text
309 lines
9.5 KiB
Text
/* BEGIN_HEADER */
|
|
#include <polarssl/cipher.h>
|
|
/* END_HEADER */
|
|
|
|
/* BEGIN_DEPENDENCIES
|
|
* depends_on:POLARSSL_CIPHER_C
|
|
* END_DEPENDENCIES
|
|
*/
|
|
|
|
/* 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;
|
|
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];
|
|
|
|
size_t outlen = 0;
|
|
size_t total_len = 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 ) );
|
|
|
|
if( -1 != pad_mode )
|
|
{
|
|
TEST_ASSERT( 0 == cipher_set_padding_mode( &ctx_dec, pad_mode ) );
|
|
TEST_ASSERT( 0 == cipher_set_padding_mode( &ctx_enc, pad_mode ) );
|
|
}
|
|
|
|
TEST_ASSERT( 0 == cipher_reset( &ctx_dec, iv ) );
|
|
TEST_ASSERT( 0 == cipher_reset( &ctx_enc, iv ) );
|
|
|
|
/* encode length number of bytes from inbuf */
|
|
TEST_ASSERT( 0 == cipher_update( &ctx_enc, inbuf, length, encbuf, &outlen ) );
|
|
total_len = outlen;
|
|
|
|
TEST_ASSERT( total_len == length ||
|
|
( total_len % cipher_get_block_size( &ctx_enc ) == 0 &&
|
|
total_len < length &&
|
|
total_len + cipher_get_block_size( &ctx_enc ) > length ) );
|
|
|
|
TEST_ASSERT( 0 == cipher_finish( &ctx_enc, encbuf + outlen, &outlen ) );
|
|
total_len += outlen;
|
|
|
|
TEST_ASSERT( total_len == length ||
|
|
( total_len % cipher_get_block_size( &ctx_enc ) == 0 &&
|
|
total_len > length &&
|
|
total_len <= length + cipher_get_block_size( &ctx_enc ) ) );
|
|
|
|
/* decode the previously encoded string */
|
|
TEST_ASSERT( 0 == cipher_update( &ctx_dec, encbuf, total_len, decbuf, &outlen ) );
|
|
total_len = outlen;
|
|
|
|
TEST_ASSERT( total_len == length ||
|
|
( total_len % cipher_get_block_size( &ctx_dec ) == 0 &&
|
|
total_len < length &&
|
|
total_len + cipher_get_block_size( &ctx_dec ) >= length ) );
|
|
|
|
TEST_ASSERT( 0 == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
|
|
total_len += outlen;
|
|
|
|
TEST_ASSERT( total_len == length );
|
|
|
|
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 */
|
|
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 cipher_info_t *cipher_info;
|
|
cipher_context_t ctx;
|
|
|
|
unsigned char inbuf[64];
|
|
unsigned char encbuf[64];
|
|
|
|
size_t outlen = 0;
|
|
|
|
memset( key, 0, 32 );
|
|
memset( iv , 0, 16 );
|
|
|
|
memset( &ctx, 0, sizeof( ctx ) );
|
|
|
|
memset( inbuf, 5, 64 );
|
|
memset( encbuf, 0, 64 );
|
|
|
|
/* Check and get info structures */
|
|
cipher_info = cipher_info_from_type( cipher_id );
|
|
TEST_ASSERT( NULL != cipher_info );
|
|
|
|
/* Initialise context */
|
|
TEST_ASSERT( 0 == cipher_init_ctx( &ctx, cipher_info ) );
|
|
TEST_ASSERT( 0 == cipher_setkey( &ctx, key, key_len, POLARSSL_ENCRYPT ) );
|
|
TEST_ASSERT( 0 == cipher_set_padding_mode( &ctx, pad_mode ) );
|
|
TEST_ASSERT( 0 == cipher_reset( &ctx, iv ) );
|
|
|
|
/* encode length number of bytes from inbuf */
|
|
TEST_ASSERT( 0 == cipher_update( &ctx, inbuf, length, encbuf, &outlen ) );
|
|
TEST_ASSERT( ret == cipher_finish( &ctx, encbuf + outlen, &outlen ) );
|
|
|
|
/* done */
|
|
TEST_ASSERT( 0 == cipher_free_ctx( &ctx ) );
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void 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];
|
|
|
|
size_t 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( POLARSSL_ERR_CIPHER_FULL_BLOCK_EXPECTED == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
|
|
TEST_ASSERT( 0 == outlen );
|
|
|
|
TEST_ASSERT( 0 == cipher_free_ctx( &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 )
|
|
{
|
|
size_t first_length = first_length_val;
|
|
size_t second_length = second_length_val;
|
|
size_t 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];
|
|
|
|
size_t outlen = 0;
|
|
size_t totaloutlen = 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 ) );
|
|
|
|
/* 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 == length ||
|
|
( totaloutlen % cipher_get_block_size( &ctx_enc ) == 0 &&
|
|
totaloutlen < length &&
|
|
totaloutlen + cipher_get_block_size( &ctx_enc ) > length ) );
|
|
|
|
TEST_ASSERT( 0 == cipher_finish( &ctx_enc, encbuf + totaloutlen, &outlen ) );
|
|
totaloutlen += outlen;
|
|
TEST_ASSERT( totaloutlen == length ||
|
|
( totaloutlen % cipher_get_block_size( &ctx_enc ) == 0 &&
|
|
totaloutlen > length &&
|
|
totaloutlen <= length + cipher_get_block_size( &ctx_enc ) ) );
|
|
|
|
/* decode the previously encoded string */
|
|
TEST_ASSERT( 0 == cipher_update( &ctx_dec, encbuf, totaloutlen, decbuf, &outlen ) );
|
|
totaloutlen = outlen;
|
|
|
|
TEST_ASSERT( totaloutlen == length ||
|
|
( totaloutlen % cipher_get_block_size( &ctx_dec ) == 0 &&
|
|
totaloutlen < length &&
|
|
totaloutlen + cipher_get_block_size( &ctx_dec ) > length ) );
|
|
|
|
TEST_ASSERT( 0 == cipher_finish( &ctx_dec, decbuf + outlen, &outlen ) );
|
|
totaloutlen += outlen;
|
|
|
|
TEST_ASSERT( totaloutlen == length );
|
|
|
|
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 */
|
|
void set_padding( int cipher_id, int pad_mode, int ret )
|
|
{
|
|
const cipher_info_t *cipher_info;
|
|
cipher_context_t ctx;
|
|
|
|
cipher_info = cipher_info_from_type( cipher_id );
|
|
TEST_ASSERT( NULL != cipher_info );
|
|
TEST_ASSERT( 0 == cipher_init_ctx( &ctx, cipher_info ) );
|
|
|
|
TEST_ASSERT( ret == cipher_set_padding_mode( &ctx, pad_mode ) );
|
|
|
|
TEST_ASSERT( 0 == cipher_free_ctx( &ctx ) );
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void check_padding( int pad_mode, char *input_str, int ret, int dlen_check )
|
|
{
|
|
cipher_info_t cipher_info;
|
|
cipher_context_t ctx;
|
|
unsigned char input[16];
|
|
size_t ilen, dlen;
|
|
|
|
/* build a fake context just for getting access to get_padding */
|
|
memset( &ctx, 0, sizeof( ctx ) );
|
|
cipher_info.mode = POLARSSL_MODE_CBC;
|
|
ctx.cipher_info = &cipher_info;
|
|
|
|
TEST_ASSERT( 0 == cipher_set_padding_mode( &ctx, pad_mode ) );
|
|
|
|
ilen = unhexify( input, input_str );
|
|
|
|
TEST_ASSERT( ret == ctx.get_padding( input, ilen, &dlen ) );
|
|
if( 0 == ret )
|
|
TEST_ASSERT( dlen == (size_t) dlen_check );
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void cipher_selftest()
|
|
{
|
|
TEST_ASSERT( cipher_self_test( 0 ) == 0 );
|
|
}
|
|
/* END_CASE */
|