| Method | Description | |
|---|---|---|
| key ( string $key ) : self | Set the keys to encrypt and authenticate. |
| Method | Description | |
|---|---|---|
| checkKey ( ) | Check whether the key exists or not. | |
| decrypt ( string $value ) : string | Decrypt the given value. | |
| encrypt ( string $value ) : string | Encrypt the given value. | |
| hkdf ( string $ikm, string $info = '' ) : string | Get derived key http://tools.ietf.org/html/rfc5869. | |
| secureRandomKey ( ) : string | null | Generate a secure random key. |
