Php 3des encryption and decryption

Class files? PhpclassCrypt3Des {var $ key; functionCrypt3Des ($ key) {$ this-key $ key;} functionencrypt ($ input) {$ sizemcrypt_get_block_size (MCRYPT_3DES, ecb ); $ input $ this-pkcs5_pad ($ input, $ size); $ keystr_pad ($ this-key, 24, 0); $ td

Class files? Phpclass Crypt3Des {var $ key; function Crypt3Des ($ key) {$ this-key = $ key;} function encrypt ($ input) {$ size = mcrypt_get_block_size (MCRYPT_3DES, 'ecb '); $ input = $ this-pkcs5_pad ($ input, $ size); $ key = str_pad ($ this-key, 24, '0'); $ td

Class File

 key = $key;     }     function encrypt($input){         $size = mcrypt_get_block_size(MCRYPT_3DES,'ecb');           $input = $this->pkcs5_pad($input, $size);           $key = str_pad($this->key,24,'0');           $td = mcrypt_module_open(MCRYPT_3DES, '', 'ecb', '');           $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);           @mcrypt_generic_init($td, $key, $iv);           $data = mcrypt_generic($td, $input);           mcrypt_generic_deinit($td);           mcrypt_module_close($td);           //    $data = base64_encode($this->PaddingPKCS7($data));          $data = base64_encode($data);              return $data;       }               function decrypt($encrypted){         $encrypted = base64_decode($encrypted);           $key = str_pad($this->key,24,'0');           $td = mcrypt_module_open(MCRYPT_3DES,'','ecb','');         $iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td),MCRYPT_RAND);         $ks = mcrypt_enc_get_key_size($td);         @mcrypt_generic_init($td, $key, $iv);         $decrypted = mdecrypt_generic($td, $encrypted);         mcrypt_generic_deinit($td);         mcrypt_module_close($td);          $y=$this->pkcs5_unpad($decrypted);              return $y;           }     function pkcs5_pad ($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 * $pad);       }      function PaddingPKCS7($data) {         $block_size = mcrypt_get_block_size(MCRYPT_3DES, MCRYPT_MODE_CBC);         $padding_char = $block_size - (strlen($data) % $block_size);         $data .= str_repeat(chr($padding_char),$padding_char);         return $data;     } }

Usage:

$ Crypt = new Crypt3Des ('key'); $ a = 'string to be encrypted '; $ code = $ crypt-> encrypt ($ ); // encrypt echo $ crypt-> decrypt ($ code); // decrypt

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