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Strengthen psa_mac_verify testing

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-07-27 13:00:02 +01:00
parent 0c38385858
commit d2c9f6d256
1 changed files with 6 additions and 0 deletions
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6
tests/suites/test_suite_psa_crypto_hash.function
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@ -62,10 +62,16 @@ void hmac(int alg_arg, char *input, data_t *expected_mac)
size_t input_len = strlen(input); size_t input_len = strlen(input);
PSA_ASSERT(psa_mac_compute(key, alg, (uint8_t const *) input, input_len, mac, sizeof(mac), &mac_length)); PSA_ASSERT(psa_mac_compute(key, alg, (uint8_t const *) input, input_len, mac, sizeof(mac), &mac_length));
// manual comparison against expected MAC
ASSERT_COMPARE(expected_mac->x, expected_mac->len, mac, mac_length); ASSERT_COMPARE(expected_mac->x, expected_mac->len, mac, mac_length);
// use psa_mac_verify to compare to expected MAC
PSA_ASSERT(psa_mac_verify(key, alg, (uint8_t const *) input, input_len, expected_mac->x, expected_mac->len)); PSA_ASSERT(psa_mac_verify(key, alg, (uint8_t const *) input, input_len, expected_mac->x, expected_mac->len));
// corrupt the MAC and check that psa_mac_verify fails
expected_mac->x[0] ^= 0x7f;
TEST_EQUAL(psa_mac_verify(key, alg, (uint8_t const *) input, input_len, expected_mac->x, expected_mac->len), PSA_ERROR_INVALID_SIGNATURE);
PSA_ASSERT(psa_destroy_key(key)); PSA_ASSERT(psa_destroy_key(key));
exit: exit:
PSA_DONE(); PSA_DONE();