- openssl_private_decrypt(base64url_decode($data['key']), $k, $prvkey);
- openssl_private_decrypt(base64url_decode($data['iv']), $i, $prvkey);
+ openssl_private_decrypt(Strings::base64UrlDecode($data['key']), $k, $prvkey);
+ openssl_private_decrypt(Strings::base64UrlDecode($data['iv']), $i, $prvkey);