Question

我使用python包＆＃34; pycryptodome＆＃34;使用混合密码RSA + AES发送加密数据。

但是在加密消息之后我遇到了一个问题，这个代码将加密数据存储在名为＆＃34; encrypted_data.bin＆＃34;的文件中。其中包含数据+标签+ nonce。所以我想将此文件发送到另一端，以便接收方可以解密它。在我发送的每条消息中，我应该签名并将消息存储在文件中吗？这是我的代码：

from Crypto.PublicKey import RSA
from Crypto.Random import get_random_bytes
from Crypto.Cipher import AES, PKCS1_OAEP

def encrypt(msg):
   file_out = open("encrypted_data.bin", "wb")
   f = open("public_key.pem")
   recipient_key = RSA.import_key(f.read())
   f.close()
   session_key = get_random_bytes(16)

   # Encrypt the session key with the reciever's public RSA key
   cipher_rsa = PKCS1_OAEP.new(recipient_key)
   file_out.write(cipher_rsa.encrypt(session_key))

   # Encrypt the data with the AES session key
   cipher_aes = AES.new(session_key, AES.MODE_EAX)
   ciphertext, tag = cipher_aes.encrypt_and_digest(msg)
   print(ciphertext)
   [ file_out.write(x) for x in (cipher_aes.nonce, tag, ciphertext) ] 
   #add the cipherText to the encrypted_data.bin file
   file_out.close()

encrypt(b'This is my secret message')

如何在＆＃34;中发送RSA加密数据encrypted_data.bin＆＃34;？

0 个答案: