using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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namespace CommonUtil.DMEncrypt
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{
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/// <summary>
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/// 多卖加密
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/// </summary>
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public static class Encrypt
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{
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private static byte[] Keys = new byte[]
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{
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18,
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52,
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86,
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120,
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144,
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171,
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205,
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239
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};
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private static readonly string keyData = "appdm&2s";
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/// <summary>
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/// 加密Secret
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/// </summary>
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public static readonly string keySecret = "secdm*41";
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/// <summary>
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/// 备份订单数据加密
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/// </summary>
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public readonly static string keyBdUser = "sebddm*1";
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/// <summary>
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/// 加密sql
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/// </summary>
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public static readonly string keySql = "dmrebuqi";
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/// <summary>
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/// 解密
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/// </summary>
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/// <param name="decryptString"></param>
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/// <returns></returns>
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public static string DecryptDES(string decryptString)
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{
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string result;
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try
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{
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byte[] bytes = Encoding.UTF8.GetBytes(Encrypt.keyData);
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byte[] keys = Encrypt.Keys;
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byte[] array = Convert.FromBase64String(decryptString);
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DESCryptoServiceProvider dESCryptoServiceProvider = new DESCryptoServiceProvider();
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MemoryStream memoryStream = new MemoryStream();
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CryptoStream cryptoStream = new CryptoStream(memoryStream, dESCryptoServiceProvider.CreateDecryptor(bytes, keys), CryptoStreamMode.Write);
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cryptoStream.Write(array, 0, array.Length);
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cryptoStream.FlushFinalBlock();
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result = Encoding.UTF8.GetString(memoryStream.ToArray());
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}
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catch
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{
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result = decryptString;
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}
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return result;
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}
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/// <summary>
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/// 加密
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/// </summary>
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/// <param name="encryptString"></param>
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/// <returns></returns>
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public static string EncryptDES(string encryptString)
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{
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string result;
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try
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{
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byte[] bytes = Encoding.UTF8.GetBytes(Encrypt.keyData.Substring(0, 8));
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byte[] keys = Encrypt.Keys;
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byte[] bytes2 = Encoding.UTF8.GetBytes(encryptString);
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DESCryptoServiceProvider dESCryptoServiceProvider = new DESCryptoServiceProvider();
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MemoryStream memoryStream = new MemoryStream();
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CryptoStream cryptoStream = new CryptoStream(memoryStream, dESCryptoServiceProvider.CreateEncryptor(bytes, keys), CryptoStreamMode.Write);
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cryptoStream.Write(bytes2, 0, bytes2.Length);
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cryptoStream.FlushFinalBlock();
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result = Convert.ToBase64String(memoryStream.ToArray());
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}
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catch
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{
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result = encryptString;
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}
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return result;
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}
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#region 必达账号加密
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/// <summary>
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/// 必达账号加密
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/// </summary>
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/// <param name="encryptString">待加密的字符串</param>
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/// <returns>加密成功返回加密后的字符串，失败返回源串 </returns>
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public static string EncryptDES_BD(string encryptString)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(keyBdUser.Substring(0, 8));//转换为字节
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
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DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();//实例化数据加密标准
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MemoryStream mStream = new MemoryStream();//实例化内存流
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//将数据流链接到加密转换的流
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CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Convert.ToBase64String(mStream.ToArray());
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}
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catch
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{
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return encryptString;
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}
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}
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#endregion
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#region 必达账号解密
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/// <summary>
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/// 必达账号解密
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/// </summary>
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/// <param name="decryptString">待解密的字符串</param>
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/// <returns>解密成功返回解密后的字符串，失败返源串</returns>
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public static string DecryptDES_BD(string decryptString)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(keyBdUser);
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Convert.FromBase64String(decryptString);
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DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Encoding.UTF8.GetString(mStream.ToArray());
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}
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catch
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{
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return decryptString;
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}
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}
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#endregion
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#region 数据库链接字符串 加密解密
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/// <summary>
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/// 数据库链接加密
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/// </summary>
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/// <param name="encryptString">待加密的字符串</param>
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/// <returns>加密成功返回加密后的字符串，失败返回源串 </returns>
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public static string EncryptDES_DB(string encryptString)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(keySql.Substring(0, 8));//转换为字节
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
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DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();//实例化数据加密标准
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MemoryStream mStream = new MemoryStream();//实例化内存流
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//将数据流链接到加密转换的流
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CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Convert.ToBase64String(mStream.ToArray());
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}
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catch
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{
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return encryptString;
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}
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}
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/// <summary>
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/// 数据库链接解密
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/// </summary>
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/// <param name="decryptString">待解密的字符串</param>
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/// <returns>解密成功返回解密后的字符串，失败返源串</returns>
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public static string DecryptDES_DB(string decryptString)
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{
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try
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{
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byte[] rgbKey = Encoding.UTF8.GetBytes(keySql);
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byte[] rgbIV = Keys;
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byte[] inputByteArray = Convert.FromBase64String(decryptString);
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DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
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MemoryStream mStream = new MemoryStream();
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CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
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cStream.Write(inputByteArray, 0, inputByteArray.Length);
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cStream.FlushFinalBlock();
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return Encoding.UTF8.GetString(mStream.ToArray());
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}
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catch
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{
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return decryptString;
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}
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}
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#endregion
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}
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}
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