|string */ public array|string $previousKeys = ''; /** * -------------------------------------------------------------------------- * Encryption Driver to Use * -------------------------------------------------------------------------- * * One of the supported encryption drivers. * * Available drivers: * - OpenSSL * - Sodium */ public string $driver = 'OpenSSL'; /** * -------------------------------------------------------------------------- * SodiumHandler's Padding Length in Bytes * -------------------------------------------------------------------------- * * This is the number of bytes that will be padded to the plaintext message * before it is encrypted. This value should be greater than zero. * * See the user guide for more information on padding. */ public int $blockSize = 16; /** * -------------------------------------------------------------------------- * Encryption digest * -------------------------------------------------------------------------- * * HMAC digest to use, e.g. 'SHA512' or 'SHA256'. Default value is 'SHA512'. */ public string $digest = 'SHA512'; /** * Whether the cipher-text should be raw. If set to false, then it will be base64 encoded. * This setting is only used by OpenSSLHandler. * * Set to false for CI3 Encryption compatibility. */ public bool $rawData = true; /** * Encryption key info. * This setting is only used by OpenSSLHandler. * * Set to 'encryption' for CI3 Encryption compatibility. */ public string $encryptKeyInfo = ''; /** * Authentication key info. * This setting is only used by OpenSSLHandler. * * Set to 'authentication' for CI3 Encryption compatibility. */ public string $authKeyInfo = ''; /** * Cipher to use. * This setting is only used by OpenSSLHandler. * * Set to 'AES-128-CBC' to decrypt encrypted data that encrypted * by CI3 Encryption default configuration. */ public string $cipher = 'AES-256-CTR'; }