diff options
Diffstat (limited to 'cryptography/hazmat/backends/multibackend.py')
| -rw-r--r-- | cryptography/hazmat/backends/multibackend.py | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/cryptography/hazmat/backends/multibackend.py b/cryptography/hazmat/backends/multibackend.py index 981a60bd..753f4fc6 100644 --- a/cryptography/hazmat/backends/multibackend.py +++ b/cryptography/hazmat/backends/multibackend.py @@ -158,6 +158,31 @@ class MultiBackend(object): raise UnsupportedAlgorithm("DSA is not supported by the backend", _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + def create_dsa_verification_ctx(self, public_key, signature, algorithm): + for b in self._filtered_backends(DSABackend): + return b.create_dsa_verification_ctx(public_key, signature, + algorithm) + raise UnsupportedAlgorithm("DSA is not supported by the backend", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + + def create_dsa_signature_ctx(self, private_key, algorithm): + for b in self._filtered_backends(DSABackend): + return b.create_dsa_signature_ctx(private_key, algorithm) + raise UnsupportedAlgorithm("DSA is not supported by the backend", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + + def dsa_hash_supported(self, algorithm): + for b in self._filtered_backends(DSABackend): + return b.dsa_hash_supported(algorithm) + raise UnsupportedAlgorithm("DSA is not supported by the backend", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + + def dsa_parameters_supported(self, p, q, g): + for b in self._filtered_backends(DSABackend): + return b.dsa_parameters_supported(p, q, g) + raise UnsupportedAlgorithm("DSA is not supported by the backend", + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM) + def cmac_algorithm_supported(self, algorithm): return any( b.cmac_algorithm_supported(algorithm) |