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JAVA和PHP通用的加解密整理版

  日常开放中 平台中通常不会只有单一的环境,因此跨平台的通讯 通常会使用标准的AES,DES等加密规则

  公司的项目开发中 遇到了JAVA和PHP的加密解密跨平台的问题 经过多方查找资料以及研究找出一个通用的基础加解密方案如下

  1:JAVA代码 (3DES版)

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.log4j.Logger;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
/**
* Java版3DES加密解密,适用于PHP版3DES加密解密(PHP语言开发的MCRYPT_3DES算法、MCRYPT_MODE_ECB模式、PKCS7填充方式)
* @author G007N
*/
public class DesBase64Tool {
private static SecretKey secretKey = null;//key对象
private static Cipher cipher = null;   //私鈅加密对象Cipher
private static String keyString = "AKlMU89D3FchIkhKyMma6FiE";//密钥
private static Logger log = Logger.getRootLogger();
static{
try {
secretKey = new SecretKeySpec(keyString.getBytes(), "DESede");//获得密钥
/*获得一个私鈅加密类Cipher,DESede是算法,ECB是加密模式,PKCS5Padding是填充方式*/
cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
} catch (Exception e) {
log.error(e.getMessage(), e);
}
}
/**
* 加密
* @param message
* @return
*/
public static String desEncrypt(String message) {
String result = "";   //DES加密字符串
String newResult = "";//去掉换行符后的加密字符串
try {
cipher.init(Cipher.ENCRYPT_MODE, secretKey);     //设置工作模式为加密模式,给出密钥
byte[] resultBytes = cipher.doFinal(message.getBytes("UTF-8")); //正式执行加密操作
BASE64Encoder enc = new BASE64Encoder();
result = enc.encode(resultBytes);//进行BASE64编码
newResult = filter(result);      //去掉加密串中的换行符
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return newResult;
}
/**
* 解密
* @param message
* @return
* @throws Exception
*/
public static String desDecrypt(String message) throws Exception {
String result = "";
try {
BASE64Decoder dec = new BASE64Decoder();
byte[] messageBytes = dec.decodeBuffer(message);  //进行BASE64编码
cipher.init(Cipher.DECRYPT_MODE, secretKey);      //设置工作模式为解密模式,给出密钥
byte[] resultBytes = cipher.doFinal(messageBytes);//正式执行解密操作
result = new String(resultBytes,"UTF-8");
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 去掉加密字符串换行符
* @param str
* @return
*/
public static String filter(String str) {
String output = "";
StringBuffer sb = new StringBuffer();
for (int i = 0; i < str.length(); i++) {
int asc = str.charAt(i);
if (asc != 10 && asc != 13) {
sb.append(str.subSequence(i, i+1));
}
}
output = new String(sb);
return output;
}
/**
* 加密解密测试
* @param args
*/
public static void main(String[] args) {
try {
String strText = "Hello world!";
String deseResult = desEncrypt(strText);//加密
System.out.println("加密结果:"+deseResult);
String desdResult = desDecrypt(deseResult);//解密
System.out.println("解密结果:"+desdResult);
} catch (Exception e) {
e.printStackTrace();
}
}
}



  2:PHP版本(3DES)

  3des的已经不再使用了,因此没有专门整理成类

  凑活看吧哈哈

function pkcs5_pad($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
function pkcs5_unpad($text)
{
$pad = ord($text{strlen($text)-1});
if ($pad > strlen($text))
{
return false;
}
if( strspn($text, chr($pad), strlen($text) - $pad) != $pad)
{
return false;
}
return substr($text, 0, -1 * $pad);
}
$key = "AKlMU89D3FchIkhKyMma6FiE";
//$key = pack("H48", $key);
$iv = "0102030405060708";
$iv = pack("H16", $iv);
$td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
mcrypt_generic_init($td, $key, $iv);
$str = base64_encode(mcrypt_generic($td,pkcs5_pad("1qaz2ws",8)));
echo $str ."";
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
$td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_ECB, '');
mcrypt_generic_init($td, $key, $iv);
$ttt  = pkcs5_unpad(mdecrypt_generic($td, base64_decode($str)));
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
echo $ttt;
exit;

  3:JAVA版本(AES)

  将代码1中的如下行修改

/*密钥为16的倍数*/
private static String keyString = "AKlMU89D3FchIkhK";//密钥
/*AES算法*/
secretKey = new SecretKeySpec(keyString.getBytes(), "AES");//获得密钥
/*获得一个私鈅加密类Cipher,DESede-》AES算法,ECB是加密模式,PKCS5Padding是填充方式*/
cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");

  4:PHP版本(AES)

  开发中选择了AESclass CryptAES

{
protected $cipher     = MCRYPT_RIJNDAEL_128;
protected $mode       = MCRYPT_MODE_ECB;
protected $pad_method = NULL;
protected $secret_key = '';
protected $iv         = '';
public function set_cipher($cipher)
{
$this->cipher = $cipher;
}
public function set_mode($mode)
{
$this->mode = $mode;
}
public function set_iv($iv)
{
$this->iv = $iv;
}
public function set_key($key)
{
$this->secret_key = $key;
}
public function require_pkcs5()
{
$this->pad_method = 'pkcs5';
}
protected function pad_or_unpad($str, $ext)
{
if ( is_null($this->pad_method) )
{
return $str;
}
else
{
$func_name = __CLASS__ . '::' . $this->pad_method . '_' . $ext . 'pad';
if ( is_callable($func_name) )
{
$size = mcrypt_get_block_size($this->cipher, $this->mode);
return call_user_func($func_name, $str, $size);
}
}
return $str;
}
protected function pad($str)
{
return $this->pad_or_unpad($str, '');
}
protected function unpad($str)
{
return $this->pad_or_unpad($str, 'un');
}
public function encrypt($str)
{
$str = $this->pad($str);
$td = mcrypt_module_open($this->cipher, '', $this->mode, '');
if ( empty($this->iv) )
{
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
}
else
{
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
$cyper_text = mcrypt_generic($td, $str);
$rt=base64_encode($cyper_text);
//$rt = bin2hex($cyper_text);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $rt;
}
public function decrypt($str){
$td = mcrypt_module_open($this->cipher, '', $this->mode, '');
if ( empty($this->iv) )
{
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
}
else
{
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
//$decrypted_text = mdecrypt_generic($td, self::hex2bin($str));
$decrypted_text = mdecrypt_generic($td, base64_decode($str));
$rt = $decrypted_text;
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $this->unpad($rt);
}
public static function hex2bin($hexdata) {
$bindata = '';
$length = strlen($hexdata);
for ($i=0; $i < $length; $i += 2)
{
$bindata .= chr(hexdec(substr($hexdata, $i, 2)));
}
return $bindata;
}
public static function pkcs5_pad($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static function pkcs5_unpad($text)
{
$pad = ord($text{strlen($text) - 1});
if ($pad > strlen($text)) return false;
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
return substr($text, 0, -1 * $pad);
}
}
$aes = new CryptAES();
//密钥修改成了16位 和JAVA的一致
$aes->set_key('AKlMU89D3FchIkhK');
//$aes->set_key('AKlMU89D3FchIkhKyMma6FiE');
$aes->require_pkcs5();
$rt = $aes->encrypt('1qaz2ws');
echo $rt . '<br/>';
echo $aes->decrypt($rt) . '<br/>';
exit;

posted on 2013-09-16 10:00 顺其自然EVO 阅读(8124) 评论(0)  编辑  收藏


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