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<?php class Cipher { private $securekey, $iv; function __construct($textkey) { $this->securekey = hash('sha256',$textkey,TRUE); $this->iv = mcrypt_create_iv(32); } function encrypt($input) { return base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->securekey, $input, MCRYPT_MODE_ECB, $this->iv)); } function decrypt($input) { return rtrim(trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->securekey, base64_decode($input), MCRYPT_MODE_ECB, $this->iv)),"\0"); } } $cipher = new Cipher('secret passphrase'); $encryptedtext = $cipher->encrypt("hide me"); echo "->encrypt = $encryptedtext<br />"; $decryptedtext = $cipher->decrypt($encryptedtext); echo "->decrypt = $decryptedtext<br />"; var_dump($decryptedtext);

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