解密解密RSA、AES

RSA(加密的内容有长度限制)

#!/usr/bin/env python
# -*- coding:utf-8 -*-
import rsa
import base64

# ######### 1. 生成公钥私钥 #########
pub_key_obj, priv_key_obj = rsa.newkeys(256)
pub_key_str = pub_key_obj.save_pkcs1()
pub_key_code = base64.standard_b64encode(pub_key_str)
priv_key_str = priv_key_obj.save_pkcs1()
priv_key_code = base64.standard_b64encode(priv_key_str)
print(pub_key_code)
print(priv_key_code)

# ######### 2. 加密 #########
def encrypt(value):
    key_str = base64.standard_b64decode(pub_key_code)
    pk = rsa.PublicKey.load_pkcs1(key_str)
    val = rsa.encrypt(value.encode('utf-8'), pk)
    return val

# ######### 3. 解密 #########
def decrypt(value):
    key_str = base64.standard_b64decode(priv_key_code)
    pk = rsa.PrivateKey.load_pkcs1(key_str)
    val = rsa.decrypt(value, pk)
    return val

# ######### 基本使用 #########
if __name__ == '__main__':
    v = 'wupeiqi'
    v1 = encrypt(v)
    print(v1)
    v2 = decrypt(v1)

    print(v2)

AES

from Crypto.Cipher import AES
# 安装pip3 install pycryptodome

def encrypt(message):
    key = b'dfdsdfsasdfdsdfs'
    cipher = AES.new(key, AES.MODE_CBC, key)
    by_data = bytearray(message, encoding='utf-8')
    # bytearray是bytes列表类型，可以修改，bytes类型不可修改
    v1 = len(bytes(message, encoding='utf-8'))
    v2 = v1 % 16
    if v2 == 0:
        v3 = 16
    else:
        v3 = 16 - v2
    for i in range(v3):
        by_data.append(v3)
        # bytearray只能追加数字进去，这儿追加进数字占一个字节
    final_data = by_data.decode('utf-8')
    final_data = bytes(final_data, encoding='utf-8')
    msg = cipher.encrypt(final_data)
    # 加密 要加密的字符串，必须是16个字节或16个字节的倍数
    return msg


def decrypt(msg):
    key = b'dfdsdfsasdfdsdfs'
    cipher = AES.new(key, AES.MODE_CBC, key)
    result = cipher.decrypt(msg)
    # 解密
    data = result[0:-result[-1]]
    return str(data, encoding='utf-8')

v = '我是你爸'   # 这里传进去的值只能是字符串形式的值
msg = encrypt(v)
result = decrypt(msg)
print(result)