diff options
| -rw-r--r-- | cryptography/hazmat/backends/multibackend.py | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/cryptography/hazmat/backends/multibackend.py b/cryptography/hazmat/backends/multibackend.py index 02b4b6d1..ce9e6dee 100644 --- a/cryptography/hazmat/backends/multibackend.py +++ b/cryptography/hazmat/backends/multibackend.py @@ -305,7 +305,16 @@ class MultiBackend(object): utils.DeprecatedIn06, stacklevel=2 ) - return self.load_elliptic_curve_private_numbers(numbers) + for b in self._filtered_backends(EllipticCurveBackend): + try: + return b.elliptic_curve_private_key_from_numbers(numbers) + except UnsupportedAlgorithm: + continue + + raise UnsupportedAlgorithm( + "This backend does not support this elliptic curve.", + _Reasons.UNSUPPORTED_ELLIPTIC_CURVE + ) def load_elliptic_curve_private_numbers(self, numbers): for b in self._filtered_backends(EllipticCurveBackend): @@ -326,7 +335,16 @@ class MultiBackend(object): utils.DeprecatedIn06, stacklevel=2 ) - return self.load_elliptic_curve_public_numbers(numbers) + for b in self._filtered_backends(EllipticCurveBackend): + try: + return b.elliptic_curve_public_key_from_numbers(numbers) + except UnsupportedAlgorithm: + continue + + raise UnsupportedAlgorithm( + "This backend does not support this elliptic curve.", + _Reasons.UNSUPPORTED_ELLIPTIC_CURVE + ) def load_elliptic_curve_public_numbers(self, numbers): for b in self._filtered_backends(EllipticCurveBackend): |