/*
Onix Config Manager - Copyright (c) 2018-2020 by www.gatblau.org

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Contributors to this project, hereby assign copyright in their code to the
project, to be licensed under the same terms as the rest of the code.
*/
package org.gatblau.onix.security;

import org.springframework.stereotype.Component;

import java.util.Date;

//
// Interface for symmetric encryption algorithms
//
@Component
public interface Crypto {
    // returns a new secret key
    String newKey();

    // encrypts a plain text
    byte[] encrypt(String plaintext);

    // decrypts a cipher
    byte[] decrypt(byte[] encryptedData, short keyIx);

    // gets the index of the encryption key to use - 0 = no key, 1 or 2 for the two available keys
    short getKeyIx();

    // gets the index of the default key
    short getDefaultKeyIx();

    // gets the date after which the default key is no longer valid
    String getDefaultKeyExpiry();
}
