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exercise_key: allow SIGN_MESSAGE/VERIFY_MESSAGE with PSA_ALG_ANY_HASH

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There was already code to instantiate the wildcard for sign/verify-hash.
Make that work with sign/verify-message as well.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2024-02-09 17:32:45 +01:00
parent 05ee3fbdc0
commit 4781bd9773
1 changed files with 13 additions and 11 deletions
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24
tests/src/psa_exercise_key.c
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@ -283,23 +283,25 @@ static int exercise_signature_key(mbedtls_svc_key_id_t key,
psa_key_usage_t usage,
psa_algorithm_t alg)
{
/* If the policy allows signing with any hash, just pick one. */
psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH(alg);
if (PSA_ALG_IS_SIGN_HASH(alg) && hash_alg == PSA_ALG_ANY_HASH &&
usage & (PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_VERIFY_HASH |
PSA_KEY_USAGE_SIGN_MESSAGE | PSA_KEY_USAGE_VERIFY_MESSAGE)) {
#if defined(KNOWN_SUPPORTED_HASH_ALG)
hash_alg = KNOWN_SUPPORTED_HASH_ALG;
alg ^= PSA_ALG_ANY_HASH ^ hash_alg;
#else
TEST_FAIL("No hash algorithm for hash-and-sign testing");
#endif
}
if (usage & (PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_VERIFY_HASH) &&
PSA_ALG_IS_SIGN_HASH(alg)) {
unsigned char payload[PSA_HASH_MAX_SIZE] = { 1 };
size_t payload_length = 16;
unsigned char signature[PSA_SIGNATURE_MAX_SIZE] = { 0 };
size_t signature_length = sizeof(signature);
psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH(alg);
/* If the policy allows signing with any hash, just pick one. */
if (PSA_ALG_IS_SIGN_HASH(alg) && hash_alg == PSA_ALG_ANY_HASH) {
#if defined(KNOWN_SUPPORTED_HASH_ALG)
hash_alg = KNOWN_SUPPORTED_HASH_ALG;
alg ^= PSA_ALG_ANY_HASH ^ hash_alg;
#else
TEST_FAIL("No hash algorithm for hash-and-sign testing");
#endif
}
/* Some algorithms require the payload to have the size of
* the hash encoded in the algorithm. Use this input size