de.schlichtherle.truezip.zip.WinZipAesEntryParameters Maven / Gradle / Ivy

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The file system driver family for ZIP and related archive file types. Add the JAR artifact of this module to the run time class path to make its file system drivers available for service location in the client API modules.

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/*
 * Copyright (C) 2005-2013 Schlichtherle IT Services.
 * All rights reserved. Use is subject to license terms.
 */
package de.schlichtherle.truezip.zip;

import de.schlichtherle.truezip.crypto.param.AesKeyStrength;
import javax.annotation.concurrent.ThreadSafe;

/**
 * The parameters of this interface are used with WinZip AES encrypted entries.
 *
 * @since   TrueZIP 7.3
 * @author  Christian Schlichtherle
 */
@ThreadSafe
final class WinZipAesEntryParameters {

    private final WinZipAesParameters param;
    private final ZipEntry entry;

    public WinZipAesEntryParameters(
            final WinZipAesParameters param,
            final ZipEntry entry) {
        assert null != param;
        assert null != entry;
        this.param = param;
        this.entry = entry;
    }

    ZipEntry getEntry() {
        return entry;
    }

    AesKeyStrength getKeyStrength() throws ZipKeyException {
        return param.getKeyStrength(entry.getName());
    }

    void setKeyStrength(AesKeyStrength keyStrength) throws ZipKeyException {
        param.setKeyStrength(entry.getName(), keyStrength);
    }

    byte[] getWritePassword() throws ZipKeyException {
        return param.getWritePassword(entry.getName());
    }

    byte[] getReadPassword(boolean invalid) throws ZipKeyException {
        return param.getReadPassword(entry.getName(), invalid);
    }
}