diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/hazmat/primitives/asymmetric/ec.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cryptography/hazmat/primitives/asymmetric/ec.py b/src/cryptography/hazmat/primitives/asymmetric/ec.py index 125235f8..c93cc090 100644 --- a/src/cryptography/hazmat/primitives/asymmetric/ec.py +++ b/src/cryptography/hazmat/primitives/asymmetric/ec.py @@ -155,9 +155,13 @@ class EllipticCurvePublicKey(object): @classmethod def from_encoded_point(cls, curve, data): utils._check_bytes("data", data) + if not isinstance(curve, EllipticCurve): raise TypeError("curve must be an EllipticCurve instance") + if len(data) == 0: + raise ValueError("data must not be an empty byte string") + if six.indexbytes(data, 0) not in [0x02, 0x03, 0x04]: raise ValueError("Unsupported elliptic curve point type") |