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utils: Add a constant time chunk_equals() variant for cryptographic purposes

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This commit is contained in:
Martin Willi
2015-04-14 12:02:48 +02:00
parent 71afe0a556
commit 9d6e952201
3 changed files with 87 additions and 1 deletions
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src/libstrongswan/tests/suites/test_chunk.c
+27
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@@ -60,6 +60,32 @@ START_TEST(test_chunk_equals)
}
END_TEST
/*******************************************************************************
* equals_const
*/
START_TEST(test_chunk_equals_const)
{
chunk_t chunk = chunk_from_str("chunk");
chunk_t chunk_a, chunk_b;
chunk_a = chunk_empty;
chunk_b = chunk_empty;
ck_assert(!chunk_equals_const(chunk_a, chunk_b));
chunk_a = chunk;
ck_assert(!chunk_equals_const(chunk_a, chunk_b));
chunk_b = chunk;
ck_assert(chunk_equals_const(chunk_a, chunk_b));
chunk_b = chunk_from_str("asdf");
ck_assert(!chunk_equals_const(chunk_a, chunk_b));
chunk_b = chunk_from_str("chunk");
ck_assert(chunk_equals_const(chunk_a, chunk_b));
}
END_TEST
/*******************************************************************************
* chunk_compare test
*/
@@ -1013,6 +1039,7 @@ Suite *chunk_suite_create()
tc = tcase_create("equals");
tcase_add_test(tc, test_chunk_equals);
tcase_add_test(tc, test_chunk_equals_const);
suite_add_tcase(s, tc);
tc = tcase_create("chunk_compare");