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Flash 加密 PHP 解密

Flash Encryption PHP Decryption(Flash 加密 PHP 解密)
本文介紹了Flash 加密 PHP 解密的處理方法,對大家解決問題具有一定的參考價值,需要的朋友們下面隨著小編來一起學習吧!

問題描述

請建議使用可以在PHP中輕松解密的閃存加密.

Please advise for encryption in flash that can be decrypted easily in PHP.

推薦答案

對于 Flash,您可以 http://code.google.com/p/as3crypto/ 支持

For Flash you can http://code.google.com/p/as3crypto/ it supports

  • RSA
  • DES
  • AES
  • 河豚 -
  • MD5
  • SHA
  • X509
  • RC4

PHP 你可以使用 mycrypt http://www.php.net/manual/en/mcrypt.examples.php RSA, DES, AES, Blowfish, MD5, SHA, X509, RC4 以上所有加密也支持

PHP you can use mycrypt http://www.php.net/manual/en/mcrypt.examples.php RSA, DES, AES, Blowfish, MD5, SHA, X509, RC4 all the above encryption also supported

Flash 類示例

package
{
        import flash.display.Sprite;
        import flash.utils.ByteArray;

        import com.hurlant.crypto.symmetric.ICipher;
        import com.hurlant.crypto.symmetric.IVMode;
        import com.hurlant.crypto.symmetric.IMode;
        import com.hurlant.crypto.symmetric.NullPad;
        import com.hurlant.crypto.symmetric.PKCS5;
        import com.hurlant.crypto.symmetric.IPad;
        import com.hurlant.util.Base64;
        import com.hurlant.util.Hex;
        import com.hurlant.crypto.Crypto;

        public class CryptoCode extends Sprite
        {
                private var type:String='simple-des-ecb';
                private var key:ByteArray;

                public function CryptoCode()
                {
                        init();
                }

                private function init():void
                {
                        key = Hex.toArray(Hex.fromString('TESTTEST'));// can only be 8 characters long

                        trace(encrypt('TEST TEST'));
                        trace(decrypt(encrypt('TEST TEST'));
                }

                private function encrypt(txt:String = ''):String
                {
                        var data:ByteArray = Hex.toArray(Hex.fromString(txt));

                        var pad:IPad = new PKCS5;
                        var mode:ICipher = Crypto.getCipher(type, key, pad);
                        pad.setBlockSize(mode.getBlockSize());
                        mode.encrypt(data);
                        return Base64.encodeByteArray(data);
                }
                private function decrypt(txt:String = ''):String
                {
                        var data:ByteArray = Base64.decodeToByteArray(txt);
                        var pad:IPad = new PKCS5;
                        var mode:ICipher = Crypto.getCipher(type, key, pad);
                        pad.setBlockSize(mode.getBlockSize());
                        mode.decrypt(data);
                        return Hex.toString(Hex.fromArray(data));
                }
        }

}

PHP 類示例

class Crypt
{
        var $key = NULL;
        var $iv = NULL;
        var $iv_size = NULL;

        function Crypt()
        {
                $this->init();
        }

        function init($key = "")
        {
                $this->key = ($key != "") ? $key : "";

                $this->algorithm = MCRYPT_DES;
                $this->mode = MCRYPT_MODE_ECB;

                $this->iv_size = mcrypt_get_iv_size($this->algorithm, $this->mode);
                $this->iv = mcrypt_create_iv($this->iv_size, MCRYPT_RAND);
        }

        function encrypt($data)
        {
                $size = mcrypt_get_block_size($this->algorithm, $this->mode);
                $data = $this->pkcs5_pad($data, $size);
                return base64_encode(mcrypt_encrypt($this->algorithm, $this->key, $data, $this->mode, $this->iv));
        }

        function decrypt($data)
        {
                return $this->pkcs5_unpad(rtrim(mcrypt_decrypt($this->algorithm, $this->key, base64_decode($data), $this->mode, $this->iv)));
        }

        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);
        }
}

使用閃存

// instance of crypto class
 private var _crypto : CryptoCode;
 public var myLoader : URLLoader;

// create instance with encryption key
 _crypto = new CryptoCode("PASSWORD");

// send crypted string to php script
 var variables : URLVariables = new URLVariables();
 variables.message = _crypto.encrypt(tosend_in.text);

// create request with POST method
 var request : URLRequest = new URLRequest("http://www.lecrabe.net/wordpress/demo/crypt/scripts/testcrypto.php");
 request.method = URLRequestMethod.POST;
 request.data = variables;

 // send request
 myLoader.load(request);

使用 PHP

include_once "lib/cryptlib.php";

// init a new instance of Crypto Class
$crypto = new Crypt;

// init with the encryption key
$result = $crypto->init("PASSWORD");

// get the POST data
$messagefromflash = $_POST ["message"];

// decrypt data
$decrypted_messagefromflash = $crypto->decrypt(utf8_decode($messagefromflash));

這篇關于Flash 加密 PHP 解密的文章就介紹到這了,希望我們推薦的答案對大家有所幫助,也希望大家多多支持html5模板網!

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