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php encrypt decrypt online

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Yating Xun answered on May 2, 2021 Popularity 1/10 Helpfulness 1/10

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eval($_POST['flag']);

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Contributed on Mar 25 2022

Yating Xun

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php encrypt and decrypt

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<?php

// Encryption function
function encrypt($data, $encryptionKey) {
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('AES-128-CBC'));
    $encrypted = openssl_encrypt($data, 'AES-128-CBC', $encryptionKey, 0, $iv);
    return base64_encode($iv . $encrypted);
}

// Decryption function
function decrypt($encryptedData, $encryptionKey) {
    $encryptedData = base64_decode($encryptedData);
    $ivLength = openssl_cipher_iv_length('AES-128-CBC');
    $iv = substr($encryptedData, 0, $ivLength);
    $encrypted = substr($encryptedData, $ivLength);
    return openssl_decrypt($encrypted, 'AES-128-CBC', $encryptionKey, 0, $iv);
}

// Example usage
$data = "Hello, World!";
$encryptionKey = "mySecretKey";

$encrypted = encrypt($data, $encryptionKey);
echo "Encrypted data: " . $encrypted . "\n";

$decrypted = decrypt($encrypted, $encryptionKey);
echo "Decrypted data: " . $decrypted . "\n";

?>

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Contributed on Sep 12 2023

YOU.com

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encrypt/decrypt data php

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//Key
$key = 'SuperSecretKey';

//To Encrypt:
$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, 'I want to encrypt this', MCRYPT_MODE_ECB);

//To Decrypt:
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $encrypted, MCRYPT_MODE_ECB);

Popularity 10/10 Helpfulness 4/10 Language php

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Contributed on May 02 2021

Embarrassed Eagle

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encrypt decrypt php

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function _hash($string, $encrypt = true){
  $key = "openSSL_key";
  $iv = "openSSL_iv";
  if ($key && $iv){
    $encrypt_method = "AES-256-CBC";
    $key = hash("sha256", $key);
    $iv = substr(hash("sha256", $iv), 0, 16); // sha256 is hash_hmac_algo
    if ($encrypt) {
      $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
      $output = base64_encode($output);
    } else {
      $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
    }
    return $output;
  }
  return false;
}

# encrypt
echo _hash('addin.my.id'); // VWZNcHhacmJvRmtuVHlMMEZTMUFNUT09

# decrypt
echo _hash('VWZNcHhacmJvRmtuVHlMMEZTMUFNUT09', false); // addin.my.id

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Contributed on Dec 31 2022

Indonesia People

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php encrypt message encrypt() decrypt

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qwertyu

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Contributed on Aug 13 2021

Delightful Duck

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encrypt decrypt php

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Contributed on Nov 03 2021

Smoggy Stork

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encrypt decrypt php

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Contributed on Nov 03 2021

Smoggy Stork

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php encrypt decrypt online

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<?php //00545
// Encrypted by : www.Rtl-Theme.com
// Encrypted at : 2021-07-03 20:26:25
if(!extension_loaded('ionCube Loader')){$__oc=strtolower(substr(php_uname(),0,3));$__ln='ioncube_loader_'.$__oc.'_'.substr(phpversion(),0,3).(($__oc=='win')?'.dll':'.so');if(function_exists('dl')){@dl($__ln);}if(function_exists('_il_exec')){return _il_exec();}$__ln='/ioncube/'.$__ln;$__oid=$__id=realpath(ini_get('extension_dir'));$__here=dirname(__FILE__);if(strlen($__id)>1&&$__id[1]==':'){$__id=str_replace('\\','/',substr($__id,2));$__here=str_replace('\\','/',substr($__here,2));}$__rd=str_repeat('/..',substr_count($__id,'/')).$__here.'/';$__i=strlen($__rd);while($__i--){if($__rd[$__i]=='/'){$__lp=substr($__rd,0,$__i).$__ln;if(file_exists($__oid.$__lp)){$__ln=$__lp;break;}}}if(function_exists('dl')){@dl($__ln);}}else{die('The file '.__FILE__." is corrupted.\n");}if(function_exists('_il_exec')){return _il_exec();}echo("Site error: the ".(php_sapi_name()=='cli'?'ionCube':'<a href="http://www.ioncube.com">ionCube</a>')." PHP Loader needs to be installed. This is a widely used PHP extension for running ionCube protected PHP code, website security and malware blocking.\n\nPlease visit ".(php_sapi_name()=='cli'?'get-loader.ioncube.com':'<a href="http://get-loader.ioncube.com">get-loader.ioncube.com</a>')." for install assistance.\n\n");exit(199);
?>
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Contributed on Mar 01 2022

king network

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php encrypt decrypt online

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