使用RSA加密邮件的错误python

Question

使用示例代码使用RSA加密邮件，但出现以下错误。

Traceback (most recent call last): 
    File "E:/PythonProjects/skypy/skypy/codebase/utils/crypto.py", line 32, in <module> 
    print(RSAPubKey.encrypt("Hello.", 32)) 
    File "E:\Programs\Python3.4\lib\site-packages\Crypto\PublicKey\RSA.py", line 150, in encrypt 
    return pubkey.pubkey.encrypt(self, plaintext, K) 
    File "E:\Programs\Python3.4\lib\site-packages\Crypto\PublicKey\pubkey.py", line 75, in encrypt 
    ciphertext=self._encrypt(plaintext, K) 
    File "E:\Programs\Python3.4\lib\site-packages\Crypto\PublicKey\RSA.py", line 224, in _encrypt 
    return (self.key._encrypt(c),) 
    File "E:\Programs\Python3.4\lib\site-packages\Crypto\PublicKey\_slowmath.py", line 65, in _encrypt 
    return pow(m, self.e, self.n) 
TypeError: unsupported operand type(s) for pow(): 'str', 'int', 'int' 

下面是示例代码

from Crypto.PublicKey import RSA 
from Crypto.Util import randpool 

blah = randpool.RandomPool() 
RSAKey = RSA.generate(1024, blah.get_bytes) 

RSAPubKey = RSAKey.publickey() 
print(RSAPubKey.encrypt("Hello.", 32)) 

OS使用的Windows是，什么可能是由于这个问题？

Answer 1

错误提示encrypt方法不支持加密字符串消息。试试你的字符串编码为字节首先使用encode，例如：

print(RSAPubKey.encrypt("Hello.".encode('utf-8'), 32)) 

另外值得一提的是，每个文档，encrypt执行“教科书” RSA加密，这是不安全的，由于缺乏填充。您应该改用Crypto.Cipher.PKCS1_OAEP或Crypto.Cipher.PKCS1_v1_5。