diff --git a/src/controller/python/chip/crypto/p256keypair.py b/src/controller/python/chip/crypto/p256keypair.py index 30198eabee..926f55318e 100644 --- a/src/controller/python/chip/crypto/p256keypair.py +++ b/src/controller/python/chip/crypto/p256keypair.py @@ -22,7 +22,6 @@ from ctypes import (CFUNCTYPE, POINTER, _Pointer, c_bool, c_char, c_size_t, c_ui from typing import TYPE_CHECKING from chip import native -from ecdsa import ECDH, NIST256p, SigningKey # type: ignore # WORKAROUND: Create a subscriptable pointer type (with square brackets) to ensure compliance of type hinting with ctypes if not TYPE_CHECKING: @@ -133,31 +132,3 @@ class P256Keypair: format of section 2.3.3 of the SECG SEC 1 standard. ''' raise NotImplementedError() - - -class TestP256Keypair(P256Keypair): - ''' The P256Keypair for testing purpose. It is not safe for any productions use - ''' - - def __init__(self, private_key: SigningKey = None): - super().__init__() - - if private_key is None: - self._key = SigningKey.generate(NIST256p) - else: - self._key = private_key - - self._pubkey = self._key.verifying_key.to_string(encoding='uncompressed') - - @property - def public_key(self) -> bytes: - return self._pubkey - - def ECDSA_sign_msg(self, message: bytes) -> bytes: - return self._key.sign_deterministic(message, hashfunc=hashlib.sha256) - - def ECDH_derive_secret(self, remote_pubkey: bytes) -> bytes: - ecdh = ECDH(curve=NIST256p) - ecdh.load_private_key(self._key) - ecdh.load_received_public_key_bytes(remote_pubkey[1:]) - return ecdh.ecdh1.generate_sharedsecret_bytes()