如何在python中解密PEM私钥

问题描述

好的，所以我找到了一种在将私钥导出到 PEM 字节时加密私钥的方法，就像这样（所有代码都来自 Nitratine 和 StackOverflow（谁会猜到）），用于名为 encrypterlib 的新模块

def generate_private_bytes_from_key(key: _RSAPrivateKey,password: bytes = None):
    from cryptography.hazmat.primitives import serialization
    return key.private_bytes(
        encoding=serialization.Encoding.PEM,format=serialization.PrivateFormat.PKCS8,encryption_algorithm=serialization.BestAvailableEncryption(password) if type(password) == bytes else serialization.NoEncryption()
        )

但我无法解密：

Python 控制台：

Python 3.9.1 and some other text
>>> from encrypterlib import *
>>> private_key = asymmetric.generate_key()
>>> private_bytes = asymmetric.generate_private_bytes_from_key(private_key,password = b"p@ssw0rd")
>>> private_key_2 = asymmetric.generate_key_from_private_bytes(private_bytes,password = b"p@ssw0rd")
Traceback (most recent call last):
  File "<stdin>",line 1,in <module>
  File "C:\Program Files\Python\lib\encrypterlib.py",line 30,in generate_key_from_private_bytes
    return serialization.load_pem_private_key(
  File "C:\Program Files\Python\lib\site-packages\cryptography\hazmat\primitives\serialization\base.py",line 18,in load_pem_private_key
    return backend.load_pem_private_key(data,password)
  File "C:\Program Files\Python\lib\site-packages\cryptography\hazmat\backends\openssl\backend.py",line 1244,in load_pem_private_key
    return self._load_key(
  File "C:\Program Files\Python\lib\site-packages\cryptography\hazmat\backends\openssl\backend.py",line 1465,in _load_key
    raise TypeError(
TypeError: Password was not given but private key is encrypted
>>>

模块：

def generate_key_from_private_bytes(bytes: bytes,password: bytes = None):
    from cryptography.hazmat.backends import default_backend
    from cryptography.hazmat.primitives import serialization
    return serialization.load_pem_private_key(
        bytes,password=password if type(password) == bytes else None,backend=default_backend()
        )

但密码学不承认我提供了密码这一事实。有什么帮助吗？

解决方法

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