/*
 * Copyright 2017 Brian Pellin, Jeremy Jamet / Kunzisoft.
 *
 * This file is part of KeePass DX.
 *
 *  KeePass DX is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  KeePass DX is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with KeePass DX.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
package com.kunzisoft.keepass.crypto.engine;

import com.kunzisoft.keepass.database.PwEncryptionAlgorithm;

import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;

public abstract class CipherEngine {
    public int keyLength() {
        return 32;
    }

    public int ivLength() {
        return 16;
    }

    public abstract Cipher getCipher(int opmode, byte[] key, byte[] IV, boolean androidOverride) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException;

    public Cipher getCipher(int opmode, byte[] key, byte[] IV) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException {
        return getCipher(opmode, key, IV, false);
    }

    public abstract PwEncryptionAlgorithm getPwEncryptionAlgorithm();

}
