/**
* Project : MapleFetion
* Package : test
* File : PassEncrypter.java
* Author : solosky < solosky772@qq.com >
* Date : 2009-11-16
* Modified : 2009-11-16
* License : Apache License 2.0
*/
package net.solosky.maplefetion.util;
import java.nio.ByteBuffer;
/**
* 密码加密工具
* 同样也参照了reflector反编译的飞信源代码以及用HaozesFx测试结果
*/
public class PasswordEncrypter
{
/**
* 加密密码
* @param plainpass 原始密码
* @param saltBytes 4个字节，用于加密
* @return 加密后的40位字符
*/
public String encrypt(String plainpass, byte[] saltBytes)
{
byte[] cryptedBytes = DigestHelper.SHA1(plainpass.getBytes());
ByteBuffer buffer = ByteBuffer.allocate(saltBytes.length+cryptedBytes.length);
buffer.put(saltBytes);
buffer.put(cryptedBytes);
buffer.flip();
cryptedBytes = DigestHelper.SHA1(buffer.array());
buffer.clear();
buffer.put(saltBytes);
buffer.put(cryptedBytes);
return ConvertHelper.byte2HexStringWithoutSpace(buffer.array());
}
/**
* 使用随机的字节加密
* @param plainpass
* @return
*/
public String encrypt(String plainpass)
{
byte[] saltBytes = {(byte) 0x89,0x40,0x54,0x02}; //随机的4个加密字节
return encrypt(plainpass, saltBytes);
}
}