加到300分，求在JAVA下的“PBEWithMD5AndDES”加密算法，到C#下如何实现？(二）

[busymj]

加到300分

输入字串：这是一个测试
输出字串：09IdjpQQAPgniEaO/skp9gy8+LkD42fZ

输入字串：123456
输出字串：OEnU8DEcgsE=

以下是JAVA的源代码，想求一下在C#使用哪种函数能实现同样的加密算法。

一、http://topic.csdn.net/u/20120212/20/077d891b-d861-417d-8df0-aa973eb46bbf.html

二、本帖

三、

//07
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;

//09
import java.security.MessageDigest;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;

//BASE64
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class pubwin2009
{


    // key1 姓名身份证加解密 07/09 
     public static String Rcode(String message,int type)throws Exception
        {
            //String Key="123!@#qweQWE/.,?><abc";    //07
            String Key="q1!2@3#we>WacE/.Q,?<b";        //09
            byte _fldint[] = { -87, -101, -56, 50, 86, 53, -29, 3};
            byte bytesrc[]; 
            if (type==1)
            bytesrc =message.getBytes("UTF8");
            else
            bytesrc =(new BASE64Decoder()).decodeBuffer(message);
            PBEParameterSpec pbeparameterspec = new PBEParameterSpec(_fldint,19);
            PBEKeySpec pbekeyspec = new PBEKeySpec(Key.toCharArray());
            SecretKeyFactory secretkeyfactory = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
            javax.crypto.SecretKey secretkey = secretkeyfactory.generateSecret(pbekeyspec);
            Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
            cipher.init(type, secretkey, pbeparameterspec);
            byte[] retByte = cipher.doFinal(bytesrc); 
            if (type==1)
            return new BASE64Encoder().encode(retByte);
            else
            return new String(retByte,"UTF8");
       
        }
    //09会员密码 db.properties 加解密
    public static String decrypt(String message,int type) throws Exception {   
            String keye = "hi%$so78"; //MD5
            String keyb = "12up56^&"; //IvParameterSpec
            byte bytesrc[]; 
            if (type==1)
            bytesrc =message.getBytes();
            else
            bytesrc =(new BASE64Decoder()).decodeBuffer(message);
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            md5.update(keye.getBytes());
            DESKeySpec desKeySpec = new DESKeySpec(md5.digest()); 
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");      
            SecretKey secretKey = keyFactory.generateSecret(desKeySpec);   
            IvParameterSpec iv  = new IvParameterSpec(keyb.getBytes("UTF-8"));
            Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");  
            cipher.init(type, secretKey, iv);         
            byte[] retByte = cipher.doFinal(bytesrc); 
            if (type==1)
            return new BASE64Encoder().encode(retByte);
            else
            return new String(retByte);
    } 
    
        public static void main(String args[]) throws Exception 
        {
            System.out.println( "\n姓名身份证加密:这是一个测试 -> " +Rcode("这是一个测试",1));
            System.out.println( "姓名身份证解密:09IdjpQQAPgniEaO/skp9gy8+LkD42fZ -> " +Rcode("09IdjpQQAPgniEaO/skp9gy8+LkD42fZ",2)+"\n");

            System.out.println( "09会员密码加解:123456 -> " +decrypt("123456",1));
            System.out.println( "09会员密码解密:OEnU8DEcgsE= -> " +decrypt("OEnU8DEcgsE=",2));

            System.exit(0);
        }

}

[快乐的小二兔]

传说非技术区混水分

[段传涛]

为什么 在非技术区。

[孟子E章]

参见Emulating PBEWithMD5AndDES Encryption under .NET
http://www.codeproject.com/Articles/16450/Emulating-PBEWithMD5AndDES-Encryption-under-NET

[hongcha99]

是我来错了吗？这里是.ner非技术区啊

[Ny-6000]

[Quote=引用 3 楼 hongcha99 的回复:]
是我来错了吗？这里是.ner非技术区啊
[/Quote]

[busymj]

[Quote=引用 3 楼 hongcha99 的回复:]

是我来错了吗？这里是.ner非技术区啊
[/Quote]

额。。。是啊，才发现。。。汗。

就这里继续吧，希望有人能帮解决下。

[busymj]

[Quote=引用 1 楼 nonocast 的回复:]

有空帮你写一把，先顶一下呗
[/Quote]

非常感谢，您只要帮我确定一下全用的函数以及相应参数的位置就可以了，我试了很久都没成功。

谢谢了。。

[nonocast]

有空帮你写一把，先顶一下呗

[jshi123]

用2楼给的链接就可以

	static void Main(string[] args)
	{
		Console.WriteLine("\n姓名身份证加密:这是一个测试 -> " + Rcode("这是一个测试", 1));
		Console.WriteLine("姓名身份证解密:09IdjpQQAPgniEaO/skp9gy8+LkD42fZ -> " + Rcode("09IdjpQQAPgniEaO/skp9gy8+LkD42fZ", 2) + "\n");
	}

	public static String Rcode(String message, int type)
	{
		String key = "q1!2@3#we>WacE/.Q,?<b";  //密码
		sbyte[] salt = { -87, -101, -56, 50, 86, 53, -29, 3 }; // 随机盐
		int count = 19; // 迭代次数

		PKCSKeyGenerator cipher = new PKCSKeyGenerator(key, Array.ConvertAll(salt, a=>(byte)a), count, 1);

		if (type == 1)
		{
			byte[] src = Encoding.UTF8.GetBytes(message);
			byte[] result = cipher.Encryptor.TransformFinalBlock(src, 0, src.Length);
			return Convert.ToBase64String(result);
		}
		else
		{
			byte[] src = Convert.FromBase64String(message);
			byte[] result = cipher.Decryptor.TransformFinalBlock(src, 0, src.Length);
			return Encoding.UTF8.GetString(result);
		}
	}

	public class PKCSKeyGenerator
	{
		byte[] key = new byte[8], iv = new byte[8];
		DESCryptoServiceProvider des = new DESCryptoServiceProvider();

		public byte[] Key { get { return key; } }
		public byte[] IV { get { return iv; } }
		public ICryptoTransform Encryptor { get { return des.CreateEncryptor(key, iv); } }
		public ICryptoTransform Decryptor { get { return des.CreateDecryptor(key, iv); } } // 多加一个Decryptor用于解密

		public PKCSKeyGenerator() { }
		public PKCSKeyGenerator(String keystring, byte[] salt, int md5iterations, int segments)
		{
			Generate(keystring, salt, md5iterations, segments);
		}

		public ICryptoTransform Generate(String keystring, byte[] salt, int md5iterations, int segments)
		{
			int HASHLENGTH = 16;    //MD5 bytes
			byte[] keymaterial = new byte[HASHLENGTH * segments]; //to store concatenated Mi hashed results

			// --- get secret password bytes ----
			byte[] psbytes;
			psbytes = Encoding.UTF8.GetBytes(keystring);

			// --- concatenate salt and pswd bytes into fixed data array ---
			byte[] data00 = new byte[psbytes.Length + salt.Length];
			Array.Copy(psbytes, data00, psbytes.Length);  //copy the pswd bytes
			Array.Copy(salt, 0, data00, psbytes.Length, salt.Length);//concatenate the salt bytes

			// ---- do multi-hashing and concatenate results  D1, D2 ...  
			// into keymaterial bytes ----
			MD5 md5 = new MD5CryptoServiceProvider();
			byte[] result = null;
			byte[] hashtarget = new byte[HASHLENGTH + data00.Length];   //fixed length initial hashtarget

			for (int j = 0; j < segments; j++)
			{
				// ----  Now hash consecutively for md5iterations times ------
				if (j == 0) result = data00;       //initialize
				else
				{
					Array.Copy(result, hashtarget, result.Length);
					Array.Copy(data00, 0, hashtarget, result.Length, data00.Length);
					result = hashtarget;
				}

				for (int i = 0; i < md5iterations; i++)
					result = md5.ComputeHash(result);

				Array.Copy(result, 0, keymaterial, j * HASHLENGTH, result.Length);  //concatenate to keymaterial
			}

			Array.Copy(keymaterial, 0, key, 0, 8);
			Array.Copy(keymaterial, 8, iv, 0, 8);
			return Encryptor;
		}
	}

[busymj]

测试通过了，现在问题解决了一半。

请2楼与9楼的朋友到另两个帖子里留言接分。

另外，密码加密与解密和问题是否也能帮解决一下，我另加100分。谢谢了。

JAVA源码中的“decrypt”函数。

输入字串：123456
输出字串：OEnU8DEcgsE=


[Quote=引用 9 楼 jshi123 的回复:]

用2楼给的链接就可以
C# code

static void Main(string[] args)
{
Console.WriteLine("\n姓名身份证加密:这是一个测试 -> " + Rcode("这是一个测试", 1));
Console.WriteLine("姓名身份证解密:09IdjpQQAPgniEaO/skp9gy8+LkD……
[/Quote]