网上这种例子好多 但是C#返回的都是base64..但是base64编码在URL中传递又不太合适.
所以我自己把算法修改了一下 已经测试可以使用..:)
为了和C#统一 所以我在Java中的向量直接用的是key 你也可以换一下 两者统一即可.
C#代码
using System;
using System.Security;
using System.Security.Cryptography;
using System.IO;
using System.Text;
using System.Threading;
namespace DES
{
///
/// DES 加密
///public class DES
{
public DES(){
//密钥
private const string sKey = "ABCDEFGH";
public static string Encrypt(string pToEncrypt)
{
using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
{
byte[] inputByteArray = Encoding.UTF8.GetBytes(pToEncrypt);
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
cs.Close();
}
string str = HexStringFromByteArray(ms.ToArray());
ms.Close();
eturn str;
}
}
public static string HexStringFromByteArray(byte[] bytes)
{
string s = "";
foreach (byte b in bytes)
{
s += string.Format("{0:X2}", b);
}
return s;
}
public static void Main(string[] args)
{
//
// TODO: Add code to start application here
//
Console.WriteLine (DES.Encrypt("500200088"));
}
}
}
Java代码
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 {
/** 加密、解密key. */
private static final String PASSWORD_CRYPT_KEY = "ABCDEFGH";
/** 加密算法 */
private final static String ALGORITHM = "DES/CBC/PKCS5Padding";
/**
* 对数据进行DES加密.
* @param data 待进行DES加密的数据
* @return 返回经过DES加密后的数据
* @throws Exception
*/
public final static String decrypt(String data) throws Exception {
return new String(decrypt(hex2byte(data.getBytes()), PASSWORD_CRYPT_KEY.getBytes()));
}
/**
* 对用DES加密过的数据进行解密.
* @param data DES加密数据
* @return 返回解密后的数据
* @throws Exception
*/
public final static String encrypt(String data) throws Exception {
return byte2hex(encrypt(data.getBytes(), PASSWORD_CRYPT_KEY
.getBytes()));
}
/**
* 用指定的key对数据进行DES加密.
* @param data 待加密的数据
* @param key DES加密的key
* @return 返回DES加密后的数据
* @throws Exception
*/
private static byte[] encrypt(byte[] data, byte[] key) throws Exception {
// 从原始密匙数据创建DESKeySpec对象
DESKeySpec dks = new DESKeySpec(key);
// 创建一个密匙工厂，然后用它把DESKeySpec转换成
// 一个SecretKey对象
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey securekey = keyFactory.generateSecret(dks);
//向量
IvParameterSpec iv = new IvParameterSpec(key);
// Cipher对象实际完成加密操作
Cipher cipher = Cipher.getInstance(ALGORITHM);
// 用密匙初始化Cipher对象
cipher.init(Cipher.ENCRYPT_MODE, securekey, iv);
// 现在，获取数据并加密
// 正式执行加密操作
return cipher.doFinal(data);
}
/** *//**
* 用指定的key对数据进行DES解密.
* @param data 待解密的数据
* @param key DES解密的key
* @return 返回DES解密后的数据
* @throws Exception
*/
private static byte[] decrypt(byte[] data, byte[] key) throws Exception {
// 从原始密匙数据创建一个DESKeySpec对象DESKeySpec dks = new DESKeySpec(key);
// 创建一个密匙工厂，然后用它把DESKeySpec对象转换成// 一个SecretKey对象
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey securekey = keyFactory.generateSecret(dks);
//向量
IvParameterSpec iv = new IvParameterSpec(key);
// Cipher对象实际完成解密操作
Cipher cipher = Cipher.getInstance(ALGORITHM);
// 用密匙初始化Cipher对象
cipher.init(Cipher.DECRYPT_MODE, securekey, iv);
// 现在，获取数据并解密
// 正式执行解密操作
return cipher.doFinal(data);
}
public static byte[] hex2byte(byte[] b) {
if ((b.length % 2) != 0)
throw new IllegalArgumentException("长度不是偶数");
byte[] b2 = new byte[b.length / 2];
for (int n = 0; n < b.length; n += 2) {
String item = new String(b, n, 2);
b2[n / 2] = (byte) Integer.parseInt(item, 16);
}
return b2;
}
public static String byte2hex(byte[] b) {
String hs = "";
String stmp = "";
for (int n = 0; n < b.length; n++) {
stmp = (java.lang.Integer.toHexString(b[n] & 0XFF));
if (stmp.length() == 1)
hs = hs + "0" + stmp;
else
hs = hs + stmp;
}
return hs.toUpperCase();
}
}