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)