一个比较牛的加密算法

一个加密算法据说此加密算法每次加密的结果都不同，但解密的结果相同using System;

namespace test001{ /**   对sSource，进行加密、解密操作。   @param sSource String ：操作的字符串   @param iFlag int :操作类型 1-加密  2-解密   @return String :加密或解密后的字符串    **/ public class password {  public password()  {  }  public static string pWord(string sSource,int iFlag)  {   if(sSource==null)    return null;   if(sSource.Equals(""))    return "";   int li_len,i,li_asc,li_rand,li_head;            string ls_i,ls_code="";   if(iFlag ==1)   {    li_len=sSource.Length;    Random rdm1 = new Random(~unchecked((int)DateTime.Now.Ticks));     li_head=(int)(rdm1.NextDouble()*10);    if(li_head ==0)     li_head =1;    for(i=0; i<li_len; i++)    {     Random rdm2 = new Random(~unchecked((int)DateTime.Now.Ticks));      int rand2 =(int)(rdm2.NextDouble() *94);     if(rand2 ==0)      rand2 =1;     li_rand=rand2+32;     li_asc=Convert.ToInt32(sSource.ToCharArray(i,1)[0]);     ls_i=((char)(li_asc -i)).ToString();

     if(li_asc+i+li_head>126)     {      if(li_rand%2 ==1)       li_rand=li_rand+1;      ls_i=((char)(li_rand)).ToString()+((char)(li_asc -i -li_head)).ToString();     }     else     {      if(li_rand%2 ==0)        li_rand=li_rand+1;      ls_i=((char)(li_rand)).ToString()+((char)(li_asc +i +li_head)).ToString();     }     ls_code=ls_code+ls_i;    }    Random rdm3 = new Random(~unchecked((int)DateTime.Now.Ticks));     int rand1 =(int)(rdm3.NextDouble()*9);    if(rand1 ==0)     rand1 =1;    ls_code=((char)(rand1*10+li_head+40)).ToString()+ls_code;   }   else   {    int li_ret;    li_len=sSource.Length;    ls_code="";    li_ret=Convert.ToInt32(sSource.ToCharArray(0,1)[0]) ;    for( i=2;i <li_len; i=i+2)    {     li_asc=Convert.ToInt32(sSource.ToCharArray(i,1)[0]);     if(Convert.ToInt32(sSource.ToCharArray(i - 1,1)[0]) %2 ==0)     {      ls_i=((char)(li_asc + (i - 1)/2 + li_ret)).ToString();     }     else     {      ls_i=((char)(li_asc - (i - 1)/2 - li_ret)).ToString();     }     ls_code=ls_code+ls_i;    }   }   return ls_code;  } }}

转载于:https://www.cnblogs.com/tuyile006/archive/2006/07/19/454867.html

相关资源：数据结构—成绩单生成器