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Encrypt/decrypt object to be stored secure from prying eyes
* Encrypts object to be stored secure from prying eyes (uses AES-256 ECB).
* @param object $sourceObj Object to be encrypted.
* @param string $key Key to use for encryption.
* @return string Encrypted object.
function objEncrypt($sourceObj, $key)
$sourceJson = json_encode($sourceObj, JSON_FORCE_OBJECT);
$ciphertext = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, sha1($key,true), $sourceJson, MCRYPT_MODE_ECB));
return $ciphertext;
* Decrypts encrypted object.
* @param $cipherObj Encrypted object.
* @param string $key Key used for encryption.
* @return object Original object.
function objDecrypt($cipherObj, $key)
$sourceJson = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, sha1($key,true), base64_decode($cipherObj), MCRYPT_MODE_ECB);
$obj = json_decode(rtrim($sourceJson, "\0"));
return $obj;
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