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Remove ad hoc is_valid_for_signature method

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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>
This commit is contained in:
Gilles Peskine
2022-03-17 12:52:24 +01:00
parent 09dc05b880
commit fa70ced195
2 changed files with 6 additions and 19 deletions
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8
tests/scripts/generate_psa_tests.py
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@ -206,7 +206,7 @@ class NotSupported:
continue
# For public key we expect that key generation fails with
# INVALID_ARGUMENT. It is handled by KeyGenerate class.
if not kt.name.endswith('_PUBLIC_KEY'):
if not kt.is_public():
yield test_case_for_key_type_not_supported(
'generate', kt.expression, bits,
finish_family_dependencies(generate_dependencies, bits),
@ -822,8 +822,10 @@ class StorageFormatV0(StorageFormat):
for key_type in sorted(alg_with_keys[alg]):
# The key types must be filtered to fit the specific usage flag.
kt = crypto_knowledge.KeyType(key_type)
if kt.is_valid_for_signature(usage):
yield self.keys_for_implicit_usage(usage, alg, kt)
if kt.is_public() and '_SIGN_' in usage:
# Can't sign with a public key
continue
yield self.keys_for_implicit_usage(usage, alg, kt)
def generate_all_keys(self) -> Iterator[StorageTestData]:
yield from super().generate_all_keys()