Previous implementation mixed the test case generation and the
recursive generation calls together. A separate method is added to
generate test cases for the current class' test function. This reduces
the need to override generate_tests().
Signed-off-by: Werner Lewis <werner.lewis@arm.com>
The PSA API does not use public key objects in key agreement
operations: it imports the public key as a formatted byte string.
So a public key object with a key agreement algorithm is not
a valid combination.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
RSA-OAEP requires the key to be larger than a function of the hash size.
Ideally such combinations would be detected as a key/algorithm
incompatibility. However key/algorithm compatibility is currently tested
between the key type and the algorithm without considering the key size, and
this is inconvenient to change. So as a workaround, dispense
OAEP-with-too-small-hash from exercising, without including it in the
automatic operation-failure test generation.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Mbed TLS doesn't support certain block cipher mode combinations. This
limitation should probably be lifted, but for now, test them as unsupported.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Reject algorithms of the form PSA_ALG_TRUNCATED_MAC(...) or
PSA_ALG_AEAD_WITH_SHORTENED_TAG(...) when the truncation length is invalid
or not accepted by policy in Mbed TLS.
This is done in KeyType.can_do, so in generate_psa_tests.py, keys will be
tested for operation failure with this algorithm if the algorithm is
rejected, and for storage if the algorithm is accepted.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The current macro collector only tried the minimum and maximum expressible
lengths for PSA_ALG_TRUNCATED_MAC and PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG.
This was good enough for psa_constant_names, but it's weak for exercising
keys, in particular because it doesn't include any valid AEAD tag length.
So cover more lengths.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Only allow selected modes with 64-bit block ciphers (i.e. DES).
This removes some storage tests and creates corresponding op_fail tests.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In key read tests, add usage flags that are suitable for the key type and
algorithm. This way, the call to exercise_key() in the test not only checks
that exporting the key is possible, but also that operations on the key are
possible.
This triggers a number of failures in edge cases where the generator
generates combinations that are not valid, which will be fixed in subsequent
commits.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This currently makes all the descriptions unambiguous even when truncated at
66 characters, as the unit test framework does.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The output of generate_psa_tests.py is almost unchanged: the differences are
only spaces after commas (now consistently omitted).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Use the new generic is_public method.
Impact on generated cases: there are new HMAC test cases for SIGN_HASH. It
was a bug that these test cases were previously not generated.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Determine key types that are compatible with an algorithm based on
their names.
Key derivation and PAKE are not yet supported.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This is automatic in CPython but not guaranteed by the language. Be friendly
to other Python implementations.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Genertae test_suite_psa_crypto_generate_key.generated.data.
Use test_suite_psa_crypto_generate_key.function as a test function.
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
This is a variant of PSA_ALG_RSA_PSS which currently has exactly the same
behavior, but is intended to have a different behavior when verifying
signatures.
In a subsequent commit, PSA_ALG_RSA_PSS will change to requiring the salt
length to be what it would produce when signing, as is currently documented,
whereas PSA_ALG_RSA_PSS_ANY_SALT will retain the current behavior of
allowing any salt length (including 0).
Changes in this commit:
* New algorithm constructor PSA_ALG_RSA_PSS_ANY_SALT.
* New predicates PSA_ALG_IS_RSA_PSS_STANDARD_SALT (corresponding to
PSA_ALG_RSA_PSS) and PSA_ALG_IS_RSA_PSS_ANY_SALT (corresponding to
PSA_ALG_RSA_PSS_ANY_SALT).
* Support for the new predicates in macro_collector.py (needed for
generate_psa_constant_names).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Add test cases validating that if a stored key only had the hash policy,
then after loading it psa_get_key_attributes reports that it also has the
message policy, and the key can be used with message functions.
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
