net.java.truecommons.key.spec.common.AesKeyStrength Maven / Gradle / Ivy

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Specifies a pluggable API for key management.

There is a newer version: 2.5.0

/*
 * Copyright (C) 2005-2013 Schlichtherle IT Services.
 * All rights reserved. Use is subject to license terms.
 */
package net.java.truecommons.key.spec.common;

import java.util.ResourceBundle;
import javax.annotation.concurrent.Immutable;
import net.java.truecommons.key.spec.KeyStrength;

/**
 * Enumerates the AES cipher key strenghts.
 *
 * @since  TrueCommons 2.2
 * @author Christian Schlichtherle
 */
@Immutable
public enum AesKeyStrength implements KeyStrength {

    /** 128 bit AES cipher key. */
    BITS_128,

    /** 192 bit AES cipher key. */
    BITS_192,

    /** 256 bit AES cipher key. */
    BITS_256;

    private static final ResourceBundle
            resources = ResourceBundle.getBundle(AesKeyStrength.class.getName());

    @Override
    public int getBytes() { return 16 + 8 * ordinal(); }

    @Override
    public int getBits() { return 8 * getBytes(); }

    @Override
    public String toString() {
        return resources.getString(name());
    }
}