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 six.indexbytes(data, 0) not in [0x02, 0x03, 0x04]:
raise ValueError("Unsupported elliptic curve point type")
from cryptography.hazmat.backends.openssl.backend import backend
return backend.load_elliptic_curve_public_bytes(curve, data)
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")
from cryptography.hazmat.backends.openssl.backend import backend
return backend.load_elliptic_curve_public_bytes(curve, data)
def from_encoded_point(cls, curve: EllipticCurve,
data: bytes) -> "EllipticCurvePublicKey":
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 data[0] not in [0x02, 0x03, 0x04]:
raise ValueError("Unsupported elliptic curve point type")
from cryptography.hazmat.backends.openssl.backend import backend
return backend.load_elliptic_curve_public_bytes(curve, data)
