java如何在没有keymanager的情况下使用TrueVFS（was TrueZip）ZipoutStream创建密码保护的Zip流？

Question

import net.java.truevfs.comp.zip.ZipOutputStream;

...


ZipOutputStream zos = new ZipOutputStream(outPipe);
zos.setCryptoParameters( ## How to create those Crypto Parameters ### );

密码参数必须是接口ZipCryptoParameters。类KeyManagerZipCryptoParameters正在实现这一点——但我不想要密钥管理器，我只想简单地硬编码一个特定的密码

我该怎么做

编辑

我试过了

private static final class CustomWinZipAesParameters
        implements WinZipAesParameters {
    final byte[] password;

    CustomWinZipAesParameters(final byte[] password) {
        this.password = password.clone();
    }

    @Override
    public byte[] getWritePassword(String name)
            throws ZipKeyException {
        return password.clone();
    }

    @Override
    public byte[] getReadPassword(String name, boolean invalid)
            throws ZipKeyException {
        if (invalid)
            throw new ZipKeyException(name + " (invalid password)");
        return password.clone();
    }

    @Override
    public AesKeyStrength getKeyStrength(String arg0)
            throws ZipKeyException {
        return AesKeyStrength.BITS_128;
    }

    @Override
    public void setKeyStrength(String name, AesKeyStrength keyStrength)
            throws ZipKeyException {
        // We have been using only 128 bits to create archive entries.
        assert AesKeyStrength.BITS_128 == keyStrength;
    }
} // CustomWinZipAesParameters

然后

                byte[] ba = {64, 64, 64, 64, 64};
                zos.setCryptoParameters(new CustomWinZipAesParameters(ba));

但是产生的ZIP文件并没有被加密

Answer 1

我只需要设置每个文件的加密标志。（除了我上面的编辑）。然后它就起作用了

注意：我只能使用7z提取文件，而不能在Linux上使用unzip命令（否则我会得到“不支持的压缩方法99”）

File file = new File(contentManager.getOsmAndFilePlain());

ZipEntry ze = new ZipEntry(ContentManager.PRO_APP_FILENAME);
ze.setEncrypted(true);   ## this line inserted
zos.putNextEntry(ze);