请好心人帮忙解决下这个DES加密解密算法。
对于DES加密解密本人不是很熟悉，不过因为项目前期.net端用的是这个，所以android端也得用这个算法来加密解密了。
.net端的加密解密算法如下：
private static byte[] key = { 0x01, 0x9E, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEE };
private static byte[] iv = { 0x00, 0x01, 0x00, 0x00, 0xEF, 0x00, 0x00, 0x01 };
#region 自定义加密算法
public static string encrypt(string str)
{
byte[] byteArrayInput = Encoding.UTF8.GetBytes(str);
byte[] byteArrayOutput;
StringBuilder strBuilderOutput = new StringBuilder(1000);
string strOutput;
DES des = DES.Create();
des.Key = key;
des.IV = iv;
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(byteArrayInput, 0, byteArrayInput.Length);
cs.FlushFinalBlock();
byteArrayOutput = ms.ToArray();
for (int i = 0; i < byteArrayOutput.Length; i++)
{
strBuilderOutput.AppendFormat("{0:X2}", byteArrayOutput[i]);
}
strOutput = strBuilderOutput.ToString();
des.Clear();
return strOutput;
}
//自定义解密算法
public static string decrypt(string str)
{
byte[] byteArrayInput = new byte[str.Length / 2];
byte[] byteArrayOutput;
string strOutput;
try
{
for (int i = 0; i < str.Length / 2; i++)
{
int x = Convert.ToInt32(str.Substring(2 * i, 2), 16);
byteArrayInput[i] = (byte)x;
}
}
catch
{
return null;
}
DES des = DES.Create();
des.Key = key;
des.IV = iv;
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(byteArrayInput, 0, byteArrayInput.Length);
cs.FlushFinalBlock();
byteArrayOutput = ms.ToArray();
strOutput = Encoding.UTF8.GetString(byteArrayOutput);
des.Clear();
return strOutput;
}
#endregion
现在就是在android端不知道怎么改成通用的DES加密解密算法，哪位朋友有相关的经验或者思路的，麻烦指点下，不甚感激。
[解决办法]
import java.security.Key;import javax.crypto.Cipher;import javax.crypto.SecretKeyFactory;import javax.crypto.spec.DESedeKeySpec;import biz.source_code.base64Coder.*;/** * @author Administrator * */public class TripleDEService { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub } private static String strkey = "d+KuEICNtJsujXBH23MU6AjAjheQhpqJ"; private static String Algorithm = "desede/ECB/PKCS5Padding"; /** * 加密String明文输入,String密文输出 * * @param input * @return */ public static String DesEncrypt(String input) { byte[] byteMi = null; byte[] byteMing = null; String strMi = ""; // BASE64Encoder base64en = new BASE64Encoder(); try { byteMing = input.getBytes("UTF-8"); byte[] key = Base64Coder.decode(strkey); // BASE64Decoder().decodeBuffer(strkey); byteMi = getEncCode(byteMing, key); strMi = Base64Coder.encodeLines(byteMi); // base64en.encode(byteMi); } catch (Exception e) { e.printStackTrace(); } finally { // base64en = null; byteMing = null; byteMi = null; } return strMi; } /** * 加密以byte[]明文输入,byte[]密文输出 * * @param byteS * @return */ private static byte[] getEncCode(byte[] byteS, byte[] key) { byte[] byteFina = null; Cipher cipher; try { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory .getInstance("desede"); deskey = keyfactory.generateSecret(spec); cipher = Cipher.getInstance(Algorithm); cipher.init(Cipher.ENCRYPT_MODE, deskey); byteFina = cipher.doFinal(byteS); } catch (Exception e) { e.printStackTrace(); } finally { cipher = null; } return byteFina; } /** * 解密 以String密文输入,String明文输出 * * @param input * @return */ public static String DesDecrypt(String input) { // BASE64Decoder base64De = new BASE64Decoder(); byte[] byteMing = null; byte[] byteMi = null; String strMing = ""; try { byteMi = Base64Coder.decode(input); // base64De.decodeBuffer(input); byte[] key = Base64Coder.decode(strkey); // new // BASE64Decoder().decodeBuffer(strkey); byteMing = getDesCode(byteMi, key); strMing = new String(byteMing, "UTF-8"); } catch (Exception e) { e.printStackTrace(); } finally { // base64De = null; byteMing = null; byteMi = null; } return strMing; } /** * 解密以byte[]密文输入,以byte[]明文输出 * * @param byteD * @return */ private static byte[] getDesCode(byte[] byteD, byte[] key) { Cipher cipher; byte[] byteFina = null; try { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory .getInstance("desede"); deskey = keyfactory.generateSecret(spec); cipher = Cipher.getInstance(Algorithm); cipher.init(Cipher.DECRYPT_MODE, deskey); byteFina = cipher.doFinal(byteD); } catch (Exception e) { e.printStackTrace(); } finally { cipher = null; } return byteFina; }}