Flash 加密 PHP 解密
请建议使用可以在PHP中轻松解密的闪存加密.
Please advise for encryption in flash that can be decrypted easily in PHP.
推荐答案
对于 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 类示例
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 类示例
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);
}
}
使用闪存
// 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));
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