python3可解密的简单加密方法

方式一：

# windows下安装依赖包
pip install cryptography

asn1crypto-0.24.0 
cffi-1.12.3 
cryptography-2.7 
pycparser-2.19 
six-1.12.0

import base64
import os
from cryptography.fernet import Fernet


class AES():

    def __init__(self, secret_key):
        self.key = secret_key

    def encrypt_p(self, password):
        f = Fernet(self.key)
        p1 = password.encode()
        token = f.encrypt(p1)
        p2 = token.decode()
        return p2

    def decrypt_p(self, password):
        f = Fernet(self.key)
        p1 = password.encode()
        token = f.decrypt(p1)
        p2 = token.decode()
        return p2


if __name__ == '__main__':
    key = base64.urlsafe_b64encode(os.urandom(32))
    aes = AES(key)
    # 加密
    secret_password = aes.encrypt_p('[email protected]')
    # 解密
    clear_password = aes.decrypt_p(secret_password)
    print(clear_password)

方式二：AES对称加密

# windows下安装依赖包
pip install pycryptodomex
# linux下安装依赖包
pip install pycryptodome

pycryptodomex-3.8.2

# windows下导包
from Cryptodome.Cipher import AES
# linux下导包
from Crypto.Cipher import AES

from binascii import b2a_hex, a2b_hex


class prpcrypt():
    def __init__(self, key):
        self.key = self.handle_length(key)
        self.mode = AES.MODE_CBC

    def handle_length(self, text):
        # 这里**key 长度必须为16（AES-128）、24（AES-192）、或32（AES-256）Bytes 长度.目前AES-128足够用
        length = 16
        count = len(text)
        if (count % length != 0):
            add = length - (count % length)
        else:
            add = 0
        text = text + ('\0' * add)
        return text.encode()

    # 加密函数【加密文本text必须为16的倍数！】，如果text不是16的倍数,那就补足16位
    def encrypt(self, text):
        text = self.handle_length(text)
        cryptor = AES.new(self.key, self.mode, self.key)
        ciphertext = cryptor.encrypt(text)
        # 因为AES加密时候得到的字符串不一定是ascii字符集的，输出到终端或者保存时候可能存在问题
        # 所以这里统一把加密后的字符串转化为16进制字符串
        return b2a_hex(ciphertext).decode()

    # 解密函数
    def decrypt(self, text):
        cryptor = AES.new(self.key, self.mode, self.key)
        plain_text = cryptor.decrypt(a2b_hex(text))
        # 去掉加密时填补的空格，使用strip()
        return plain_text.decode().rstrip('\0')


if __name__ == '__main__':
    pc = prpcrypt('ecloud')  # 初始化**,小于等于16位
    e = pc.encrypt("[email protected]")
    d = pc.decrypt(e)
    print(e, d)