3ffd6bce81
This is the first step in arranging that functions from constant_time.c are tested in test_suite_constant_time.function. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* BEGIN_HEADER */
|
|
/** \file test_suite_constant_time.function
|
|
*
|
|
* Functional testing of functions in the constant_time module.
|
|
*
|
|
* The tests are instrumented with #TEST_CF_SECRET and #TEST_CF_PUBLIC
|
|
* (see tests/include/test/constant_flow.h) so that running the tests
|
|
* under MSan or Valgrind will detect a non-constant-time implementation.
|
|
*/
|
|
|
|
#include <mbedtls/constant_time.h>
|
|
#include <constant_time_internal.h>
|
|
#include <constant_time_invasive.h>
|
|
|
|
#include <test/constant_flow.h>
|
|
/* END_HEADER */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_SSL_SOME_SUITES_USE_TLS_CBC:MBEDTLS_TEST_HOOKS */
|
|
void ssl_cf_memcpy_offset( int offset_min, int offset_max, int len )
|
|
{
|
|
unsigned char *dst = NULL;
|
|
unsigned char *src = NULL;
|
|
size_t src_len = offset_max + len;
|
|
size_t secret;
|
|
|
|
ASSERT_ALLOC( dst, len );
|
|
ASSERT_ALLOC( src, src_len );
|
|
|
|
/* Fill src in a way that we can detect if we copied the right bytes */
|
|
mbedtls_test_rnd_std_rand( NULL, src, src_len );
|
|
|
|
for( secret = offset_min; secret <= (size_t) offset_max; secret++ )
|
|
{
|
|
mbedtls_test_set_step( (int) secret );
|
|
|
|
TEST_CF_SECRET( &secret, sizeof( secret ) );
|
|
mbedtls_ct_memcpy_offset( dst, src, secret,
|
|
offset_min, offset_max, len );
|
|
TEST_CF_PUBLIC( &secret, sizeof( secret ) );
|
|
TEST_CF_PUBLIC( dst, len );
|
|
|
|
ASSERT_COMPARE( dst, len, src + secret, len );
|
|
}
|
|
|
|
exit:
|
|
mbedtls_free( dst );
|
|
mbedtls_free( src );
|
|
}
|
|
/* END_CASE */
|