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实现PHP与JSP之间加密通讯
其实在PHP与JSP之间,可能有些朋友在没有PASSPORT的情况下,可能会碰到需要判断登陆问题,当然解决的办法有很多,按照不同的需求,我这里主要是设计了一个简单的.使用JAVABEAN去封装.需要的朋友可以随意使用.
双方都有一个公钥,都可以实现加密解密.
<?php
$data = "我操";
echo substr($data,1,1);
exit;
$key = "wotmd";
function keytao($txt,$encrypt_key)
{
$encrypt_key = md5($encrypt_key);
$ctr=0;
$tmp = "";
for ($i=0;$i<strlen($txt);$i++)
{
if ($ctr==strlen($encrypt_key)) $ctr=0;
$tmp.= substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1);
$ctr++;
}
return $tmp;
}
function EncodeTao($txt,$key)
{
$encrypt_key = md5($key);
for ($i=0;$i<strlen($txt);$i++)
{
if ($ctr==strlen($encrypt_key)) $ctr=0;
$tmp.= substr($encrypt_key,$ctr,1) . (substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1));
$ctr++;
}
return keytao($tmp,$key);
}
function DecodeTao($txt,$key)
{
$txt = keytao($txt,$key);
$tmp = "";
for ($i=0;$i<strlen($txt);$i++)
{
$md5 = substr($txt,$i,1);
$i++;
$tmp.= (substr($txt,$i,1) ^ $md5);
}
return $tmp;
}
echo $tt = base64_encode(EncodeTao($data,$key));
echo "<Br>";
echo DecodeTao(base64_decode($tt),$key);
?> javabean代码
<?php
package com.woyao.security;
import com.woyao.global.*;
import java.io.*;
public class taotao {
public void taotao()
{
//init~
}
public String keyTao(String txt1,String encrypt_key,boolean re)
{
MD5 m = new MD5();
encrypt_key = m.getMD5ofStr(encrypt_key);
String txt="";
try{
txt = new String(txt1.getBytes("ISO_8859_1"));
}
catch(UnsupportedEncodingException e)
{
System.out.println(e.getMessage());
}
if (re==true)
{
txt = txt.replaceAll("f","");
txt = txt.replaceAll("r","");
txt = txt.replaceAll("n","");
txt = txt.replaceAll("t","");
}
int ctr = 0;
String tmp = "";
String t_1 = "";
char t1[];
int t11 = 0;
String t_2 = "";
char t2[];
int t22 = 0;
for (int i = 0 ; i < txt.length();i++)
{
if (ctr == encrypt_key.length())
ctr = 0;
t_1 = txt.substring(i,i+1);
t1 = t_1.toCharArray();
t11 = (int)t1[0];
t_2 = encrypt_key.substring(ctr,ctr+1);
t2 = t_2.toCharArray();
t22 = (int)t2[0];
int char_temp = t11 ^ t22;
char char_t = (char)char_temp;
String char_temp2 = String.valueOf(char_t);
if (t_1.compareTo("")==1)
{
tmp = tmp + char_temp2;
}
ctr++;
}
return tmp;
}
public String EncodeTao(String txt,String key)
{
//加密~
MD5 m = new MD5();
String skey = m.getMD5ofStr(key);
String tmp = "";
String t_1 = "";
int t11 = 0;
char t1[];
String t_2 = "";
int t22 = 0;
char t2[];
int crt = 0;
int i = 0;
for (i=0;i<txt.length();i++)
{
if (crt == skey.length())
crt = 0;
t_1 = txt.substring(i,i+1);
t1 = t_1.toCharArray();
t11 = (int)t1[0];
t_2 = skey.substring(crt,crt+1);
t2 = t_2.toCharArray();
t22 = (int)t2[0];
int char_temp = t11 ^ t22;
char char_t = (char)char_temp;
String char_temp2 = String.valueOf(char_t);
tmp = tmp + (t_2 + char_temp2);
//System.out.println(tmp);
crt++;
}
base64 b = new base64();
tmp = b.getBASE64(tmp);
return keyTao(tmp,key,true);
}
public String DecodeTao(String txt,String key)
{
txt = keyTao(txt,key,false);
txt = txt.replaceAll("f","");
txt = txt.replaceAll("r","");
txt = txt.replaceAll("n","");
txt = txt.replaceAll("t","");
base64 b = new base64();
txt = b.getFromBASE64(txt);
String tmp = "";
String t_1 = "";
char t1[];
int t11 = 0;
char t2[];
int t22 = 0;
String md5 = "";
for (int i = 0;i < txt.length();i++)
{
md5 =txt.substring(i,i+1);
i++;
t_1 = txt.substring(i,i+1);
t1 = t_1.toCharArray();
t11 = (int)t1[0];
t2 = md5.toCharArray();
t22 = (int)t2[0];
int char_temp = t11 ^ t22;
char char_t = (char)char_temp;
String char_temp2 = String.valueOf(char_t);
tmp = tmp + char_temp2;
}
return tmp;
}
public static void main (String args[])
{
taotao tt = new taotao();
String da = "test|||123456|||1158295786";
String key = "9okmnji8654";
base64 b = new base64();
da = b.getBASE64(da);
//System.out.println(da);
String ee = b.getBASE64(tt.EncodeTao(da,key));
System.out.println(ee);
ee = ee.replaceAll("f","");
ee = ee.replaceAll("r","");
ee = ee.replaceAll("n","");
ee = ee.replaceAll("t","");
try{
String FileName = "c:\text.txt";
File myFile=new File(FileName);
myFile.createNewFile();
FileWriter fw = new FileWriter(FileName);
fw.write(ee);
fw.close();
}
catch(Exception e)
{
}
String deString = b.getFromBASE64(ee);
System.out.println(b.getFromBASE64(tt.DecodeTao(deString,key)));
}
}
?> [ 本帖最后由 font 于 2006-10-10 09:55 AM 编辑 ]
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