C#与java加密解密问题，跪求指导。。。。。
能否将下面的C#的加密解密方法转换成java的加密解密方法
#region 'EnDeCryptogram加解密
/// <summary>
/// 默认对称密钥('1234567890') 静态变量
/// </summary>
static private string key = "1234567890"; //默认密钥
/// <summary>
/// 机密密钥 字节数组静态变量
/// </summary>
static private byte[] skey;
/// <summary>
/// 对称算法的初始化向量 字节数组 静态变量
/// </summary>
static private byte[] siv;
/// <summary>
/// 随机数 静态变量
/// </summary>
private static Random random = null;
//************************************************************************
/// <summary>
/// 加密字符串 静态方法
/// </summary>
/// <param name="inputStr">输入明文字符串</param>
/// <param name="keyStr">密钥,可以为""</param>
/// <returns>输出加密后字符串</returns>
//************************************************************************
public static string EncryptString(string inputStr, string keyStr)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
if (keyStr == "") keyStr = key; //此密钥默认为:1234567890
byte[] inputByteArray = Encoding.Default.GetBytes(inputStr);//此与解密不同点1
byte[] keyByteArray = Encoding.Default.GetBytes(keyStr);
SHA1 ha = new SHA1Managed();
byte[] hb = ha.ComputeHash(keyByteArray);
skey = new byte[8];
siv = new byte[8];
for (int i = 0; i < 8; i++) skey[i] = hb[i];
for (int i = 8; i < 16; i++) siv[i - 8] = hb[i];
des.Key = skey; // 取得机密密钥
des.IV = siv; // 取得初始化向量(作用-相当于随机'盐'值)
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);//此与解密不同点2
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:x2}", b);
}
cs.Close();
ms.Close();
return ret.ToString();
}
catch (Exception ex)
{
throw ex;
}
}
//************************************************************************
/// <summary>
/// 解密字符串 静态方法
/// </summary>
/// <param name="inputStr">要解密的字符串</param>
/// <param name="keyStr">密钥,可以为""</param>
/// <returns>解密后的结果</returns>
//************************************************************************
public static string DecryptString(string inputStr, string keyStr)
{
try
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
if (keyStr == "") keyStr = key;//此密钥默认为:1234567890
byte[] inputByteArray = new byte[inputStr.Length / 2];//此与加密不同点1
for (int x = 0; x < inputStr.Length / 2; x++) //此与加密不同点1
{
int i = (Convert.ToInt32(inputStr.Substring(x * 2, 2), 16));
inputByteArray[x] = (byte)i;
}
byte[] keyByteArray = Encoding.Default.GetBytes(keyStr);
SHA1 ha = new SHA1Managed();
byte[] hb = ha.ComputeHash(keyByteArray);
skey = new byte[8];
siv = new byte[8];
for (int i = 0; i < 8; i++) skey[i] = hb[i];
for (int i = 8; i < 16; i++) siv[i - 8] = hb[i];
des.Key = skey; // 取得机密密钥
des.IV = siv; // 取得初始化向量(作用-相当于随机'盐'值)
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);//此与加密不同点2
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
return System.Text.Encoding.Default.GetString(ms.ToArray());
}
catch (Exception ex)
{
throw ex;
}
}
--------------------编程问答--------------------
求指导啊
补充：.NET技术 , C#
