def pem2ec(filename: str,
kid: Optional[str] = None,
private: bool = False,
passphrase: Optional[str] = None) -> JWK:
"""Convert EC key from PEM to JWK"""
if private:
key = import_private_key_from_file(filename, passphrase)
else:
key = import_public_key_from_file(filename)
jwk = ECKey(kid=kid)
jwk.load_key(key)
return jwk
def read_cosekey(filename: str, private: bool = True) -> CoseKey:
"""Read key and return CoseKey"""
if filename.endswith(".json"):
with open(filename, "rt") as jwk_file:
jwk_dict = json.load(jwk_file)
elif filename.endswith(".key"):
key = import_private_key_from_pem_file(filename)
jwk = ECKey()
jwk.load_key(key)
jwk_dict = jwk.serialize(private=private)
elif filename.endswith(".crt"):
if private:
raise ValueError("No private keys in certificates")
key = import_public_key_from_cert_file(filename)
jwk = ECKey()
jwk.load_key(key)
jwk_dict = jwk.serialize(private=private)
else:
raise ValueError("Unknown key format")
return cosekey_from_jwk_dict(jwk_dict, private)