python与C#相互加解密

C#加解密

using System;
using System.Text;
using System.IO;
using System.Security.Cryptography;
namespace ConsoleApp1
{
    internal class Program
    {
        static void Main(string[] args)
        {
            var testData = "{'username':'admin','password':'123.com'}";
            Console.WriteLine("测试数据："+testData);
            Console.WriteLine("C#加密：" + Encode(testData));
            Console.Write("C#解密："+ Decode(Encode(testData)));
            Console.ReadLine();
        }
        static string GetDefaultKeyAndIv()
        {
            return "12345678";
        }
        //加密
        public static string Encode(string str, string keyAndIv = null)
        {
            try
            {
                keyAndIv = string.IsNullOrEmpty(keyAndIv) ? GetDefaultKeyAndIv() : keyAndIv;
                var provider = new DESCryptoServiceProvider
                {
                    Key = Encoding.ASCII.GetBytes(keyAndIv),
                    IV = Encoding.ASCII.GetBytes(keyAndIv)
                };
                var bytes = Encoding.UTF8.GetBytes(str);
                using (var memoryStream = new MemoryStream())
                {
                    using (var cryptoStream = new CryptoStream(memoryStream, provider.CreateEncryptor(), CryptoStreamMode.Write))
                    {
                        cryptoStream.Write(bytes, 0, bytes.Length);
                        cryptoStream.FlushFinalBlock();
                        var builder = new StringBuilder();
                        foreach (var num in memoryStream.ToArray())
                        {
                            builder.AppendFormat("{0:X2}", num);
                        }
                        return builder.ToString();
                    }
                }
            }
            catch (Exception)
            {
                return null;
            }
        }

        //解密
        public static string Decode(string str, string keyAndIv = null)
        {
            try
            {
                keyAndIv = string.IsNullOrEmpty(keyAndIv) ? GetDefaultKeyAndIv() : keyAndIv;

                var provider = new DESCryptoServiceProvider
                {
                    Key = Encoding.ASCII.GetBytes(keyAndIv),
                    IV = Encoding.ASCII.GetBytes(keyAndIv)
                };
                var buffer = new byte[str.Length / 2];
                for (var i = 0; i < str.Length / 2; i++)
                {
                    var num2 = Convert.ToInt32(str.Substring(i * 2, 2), 0x10);
                    buffer[i] = (byte)num2;
                }
                using (var memoryStream = new MemoryStream())
                {
                    using (var cryptoStream = new CryptoStream(memoryStream, provider.CreateDecryptor(), CryptoStreamMode.Write))
                    {
                        cryptoStream.Write(buffer, 0, buffer.Length);
                        cryptoStream.FlushFinalBlock();
                        return Encoding.UTF8.GetString(memoryStream.ToArray());
                    }
                }
            }
            catch (Exception)
            {
                return null;
            }
        }
    }
}

 

 python加解密

import base64
class DESSecret:
    def __init__(self,key):
        self.KEY = key
    def des_en(self,text):
        iv=secret_key=self.KEY
        k = pyDes.des(secret_key,pyDes.CBC,iv,padmode=pyDes.PAD_PKCS5)
        data = k.encrypt(text,padmode=pyDes.PAD_PKCS5)
        # 字符串转16进制
        return binascii.b2a_hex(data).decode()
    def des_de(self,text):
        iv = secret_key = self.KEY
        k = pyDes.des(secret_key, pyDes.CBC, iv, padmode=pyDes.PAD_PKCS5)
        # 十六进制转字符串
        # binascii.a2b_hex(text)
        data = k.decrypt(binascii.a2b_hex(text),padmode=pyDes.PAD_PKCS5)
        return data.decode()