pycrypto模块支持的加密方式
对称加密方式：
AES
DES
ARC4
散列值计算：
MD5
SHA
HMAC
公钥加密和签名：
RSA
DSA
RSA加密算法是一种非对称加密算法
安装
pip install pycrypto
如果导入错误则参考：
ImportError: No module named Crypto.Cipher
代码示例
# -*- coding: utf-8 -*-
from pprint import pprint
from Crypto import Random
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5
import base64
# rsa算法生成实例
def get_key():
rsa = RSA.generate(1024, Random.new().read)
# master的秘钥对的生成
private_pem = rsa.exportKey()
public_pem = rsa.publickey().exportKey()
return {
"public_key": public_pem.decode(),
"private_key": private_pem.decode()
}
# 生成的公钥私钥对
private_key = """-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----"""
public_key = """-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDfEQ82qUrto7h4BL3TsA/DFXSd
M44cbeY4kPccD7gLGhaZRClzYKIh5zYdfjBGF+0HXfMa1u9b7GNs2AjVIsx8Kx0Q
LnMfmtkmGWGhOXz/9IDLKJOx0weKv61gysKItgzVKn2mbLool4R/PQBc3AjDyHw+
io1KpVz+3kRTaGs1fQIDAQAB
-----END PUBLIC KEY-----
"""
# 公钥加密
def rsa_encode(message, public_key):
rsakey = RSA.importKey(public_key) # 导入读取到的公钥
cipher = PKCS1_v1_5.new(rsakey) # 生成对象
# 通过生成的对象加密message明文，注意，在python3中加密的数据必须是bytes类型的数据，不能是str类型的数据
cipher_text = base64.b64encode(
cipher.encrypt(message.encode(encoding="utf-8")))
# 公钥每次加密的结果不一样跟对数据的padding（填充）有关
return cipher_text.decode()
# 公钥解密
def rsa_decode(cipher_text, private_key):
rsakey = RSA.importKey(private_key) # 导入读取到的私钥
cipher = PKCS1_v1_5.new(rsakey) # 生成对象
# 将密文解密成明文，返回的是一个bytes类型数据，需要自己转换成str
text = cipher.decrypt(base64.b64decode(cipher_text), "ERROR")
return text.decode()
if __name__ == '__main__':
message = "你好，世界！"
cipher = rsa_encode(message, public_key)
print(cipher)
# 输出是一行，天长了，折行显示
# vyuQHYhjYrPZK6pJMbbcjb1Q7JTLyRDPIoV7z6OkMQsuBNk0++C
# tb3dzo0EvjUhaSOZnE9LjODgEqeTR7I459cDp8izmb970BnKj74
# 6SBtGunK24nudW86ek0JXdYsF5T/IPaphU8d56rdjW+wZv7OfSL
# m2HgXLXCI6NbJuJXhg=
msg = rsa_decode(cipher, private_key)
print(msg)
# 你好，世界！
