JAVA版本

import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import javax.crypto.spec.IvParameterSpec;public class Des {private byte[] desKey;//解密數(shù)據(jù)public static String decrypt(String message, String key) throws Exception{byte[] bytesrc = convertHexString(message);Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");SecretKey secretKey = keyFactory.generateSecret(desKeySpec);IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);byte[] retByte = cipher.doFinal(bytesrc); return new String(retByte); }public static byte[] encrypt(String message, String key) throws Exception {Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey secretKey = keyFactory.generateSecret(desKeySpec); IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8")); cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);return cipher.doFinal(message.getBytes("UTF-8")); }public static byte[] convertHexString(String ss) {byte digest[] = new byte[ss.length() / 2];for (int i = 0; i < digest.length; i++){String byteString = ss.substring(2 * i, 2 * i + 2);int byteValue = Integer.parseInt(byteString, 16);digest[i] = (byte)byteValue;}return digest; }public static void main(String[] args) throws Exception {String key = "12345678";String value="test1234 ";String jiami=java.net.URLEncoder.encode(value, "utf-8").toLowerCase();System.out.println("加密數(shù)據(jù):"+jiami);String a=toHexString(encrypt(jiami, key)).toUpperCase();System.out.println("加密后的數(shù)據(jù)為:"+a);String b=java.net.URLDecoder.decode(decrypt(a,key), "utf-8") ;System.out.println("解密后的數(shù)據(jù):"+b);}public static String toHexString(byte b[]) {StringBuffer hexString = new StringBuffer();for (int i = 0; i < b.length; i++){String plainText = Integer.toHexString(0xff & b[i]);if (plainText.length() < 2)plainText = "0" + plainText;hexString.append(plainText);}return hexString.toString(); }}

.NET版本

using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; using System.Security.Cryptography; using System.IO; using System.Text; public class TestDes {//cookies加密密鑰public static string DES_Key = "12345678";#region DESEnCode DES加密public static string DESEnCode(string pToEncrypt, string sKey){pToEncrypt = HttpContext.Current.Server.UrlEncode(pToEncrypt);DESCryptoServiceProvider des = new DESCryptoServiceProvider();byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt);des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);MemoryStream ms = new MemoryStream();CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);cs.Write(inputByteArray, 0, inputByteArray.Length);cs.FlushFinalBlock();StringBuilder ret = new StringBuilder();foreach (byte b in ms.ToArray()){ret.AppendFormat("{0:X2}", b);}ret.ToString();return ret.ToString();}#endregion#region DESDeCode DES解密public static string DESDeCode(string pToDecrypt, string sKey){// HttpContext.Current.Response.Write(pToDecrypt + "<br>" + sKey);// HttpContext.Current.Response.End();DESCryptoServiceProvider des = new DESCryptoServiceProvider();byte[] inputByteArray = new byte[pToDecrypt.Length / 2];for (int x = 0; x < pToDecrypt.Length / 2; x++){int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));inputByteArray[x] = (byte)i;}des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);MemoryStream ms = new MemoryStream();CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);cs.Write(inputByteArray, 0, inputByteArray.Length);cs.FlushFinalBlock();StringBuilder ret = new StringBuilder();return HttpContext.Current.Server.UrlDecode(System.Text.Encoding.Default.GetString(ms.ToArray()));}#endregionpublic TestDes(){//// TODO: 在此處添加構(gòu)造函數(shù)邏輯// } }

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