NotImplementedError: Use module Crypto.Cipher.PKCS1_OAEP instead error

Question

我正在尝试在 Python 中进行 RSA 加密。所以我生成了一个 public/private 密钥，使用 public 密钥加密消息并将密文写入文本文件。我使用的代码如下：

from Crypto.PublicKey import RSA
from Crypto import Random
import ast

random_generator = Random.new().read
key = RSA.generate(1024, random_generator)  

publickey = key.publickey()  

encrypted = publickey.encrypt('encrypt this message', 32)

print('encrypted message:', encrypted)
f = open('encryption.txt', 'w')
f.write(str(encrypted))
f.close()

f = open('encryption.txt', 'r')
message = f.read()

decrypted = key.decrypt(ast.literal_eval(str(encrypted)))

print('decrypted', decrypted)

f = open('encryption.txt', 'w')
f.write(str(message))
f.write(str(decrypted))
f.close()

但现在当我运行应用程序时，出现以下错误：

Traceback (most recent call last):
  File "C:/Users/RedCode/PycharmProjects/AdvancedApps/Encryption/RSA Example.py", line 10, in <module>
    encrypted = publickey.encrypt('encrypt this message', 32)
  File "C:\Users\RedCode\AppData\Local\Programs\Python\Python36-32\lib\site-packages\Crypto\PublicKey\RSA.py", line 390, in encrypt
    raise NotImplementedError("Use module Crypto.Cipher.PKCS1_OAEP instead")
NotImplementedError: Use module Crypto.Cipher.PKCS1_OAEP instead

无论我如何尝试实现 Crypto.Cipher.PKCS1_OAEP，错误仍然存在。我已经尝试导入 Crypto.Cipher.PKCS1_OAEP、from Crypto.Cipher.PKCS1_OAEP import RSA、from Crypto.Cipher.PKCS1_OAEP import Random、from Crypto.Cipher.PKCS1_OAEP import ast 以及 import Crypto.Cipher 和 none 的帮助。

我尝试了 from Crypto.Cipher.PKCS1_OAEP import RSA 但错误是：

Traceback (most recent call last):
  File "C:/Users/RedCode/PycharmProjects/AdvancedApps/Encryption/RSA Example.py", line 3, in <module>
    from Crypto.Cipher.PKCS1_OAEP import RSA
ImportError: cannot import name 'RSA'

我检查了我的文件，我确实有 RSA 包。

我该如何解决这个问题？

Answer 1

您需要使用 new 创建 PKCS1_OAEP 的实例，并将其用于 encrypt/decrypt 您的消息。

from Crypto.Cipher import PKCS1_OAEP

encryptor = PKCS1_OAEP.new(publickey)
encrypted = encryptor.encrypt(b'encrypt this message')

解密同理

decryptor = PKCS1_OAEP.new(key)
decrypted = decryptor.decrypt(ast.literal_eval(str(encrypted)))

NotImplementedError: Use module Crypto.Cipher.PKCS1_OAEP instead error

NotImplementedError: Use module Crypto.Cipher.PKCS1_OAEP instead error

python

encryption

rsa

python-3.x