我试图让 2 个程序使用公钥在网络上共享加密数据，但我遇到了一个难题：共享的信息（密钥和/或加密数据）似乎被修改了。我希望保持加密数据格式以及密钥格式尽可能简单，以便与其他语言兼容。为了解决这个问题，我创建了 2 个程序：Keyreceive 和 Keysend。他们按以下顺序执行：
- Keyreceive 启动并等待接收加密数据
- Keysend 启动并生成 RSA 密钥，将导出的私钥保存到文件中
- Keysend 加密一段数据并通过网络将其发送到 Keyreceive
- Keyreceive 从同一文件中导入私钥，并使用它来解密加密数据
- Keysend 还对加密数据进行解密以验证结果
密钥发送.py
import socket
import os
from Crypto.PublicKey import RSA
from Crypto import Random
rng = Random.new().read
RSAkey = RSA.generate(1024, rng)
privatekey = RSAkey
publickey = RSAkey.publickey()
print(privatekey.exportKey()) #export under the 'PEM' format (I think)
print(publickey.exportKey())
file = open("Keys.txt", "w")
file.write(privatekey.exportKey()) #save exported private key
file.close()
data = "hello world"
enc_data = publickey.encrypt(data, 16) #encrypt message with public key
print(str(enc_data))
host = "localhost"
port = 12800
connexion = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connexion.connect((host, port))
connexion.send(str(enc_data)) # send encrypted data, this appears to be the source of the problem
dec_data = RSAkey.decrypt(enc_data) # test decryption
print(dec_data)
os.system("pause")
密钥接收.py
import socket
import os
from Crypto.PublicKey import RSA
from Crypto import Random
host = ''
port = 12800
connexion = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
connexion.bind((host, port))
connexion.listen(5)
clientconnexion, connexioninfo = connexion.accept()
enc_data = clientconnexion.recv(1024) # receive encrypted data
print(enc_data)
file = open("Keys.txt", "r")
privatestr = file.read() # retrieve exported private key from file
file.close()
print(privatestr)
privatekey = RSA.importKey(privatestr) # import private key
data = privatekey.decrypt(enc_data) # decrypt sent encrypted data
print(data)
os.system("pause")
在两个文件都完成解密加密数据后，Keysender 输出原始消息：“hello world”，而 Keyreceiver 输出乱码。如果加密数据和密钥格式中存在“隐藏”信息，是否有某种方法可以将它们写入“纯”文本格式？