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我正在使用 BouncyCastle 包进行 OpenPGP 加密。除了一个部分，一切都很顺利。当我将加密文本写入文件时，它会附加以下消息

-----BEGIN PGP MESSAGE-----
Version: BCPG v1.47
//encrypted text here
-----END PGP MESSAGE-----

但我不想要文件中的签名部分。这是我用于加密的代码

public void encryptFile(OutputStream out, String fileName, PGPPublicKey encKey, boolean armor, boolean withIntegrityCheck) throws IOException, NoSuchProviderException, PGPException {
            //armor = true; integrityCheck = true
    Security.addProvider(new BouncyCastleProvider());

    if (armor) {
        out = new ArmoredOutputStream(out);
    }

    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    PGPCompressedDataGenerator comData = new PGPCompressedDataGenerator(PGPCompressedData.ZIP);

    PGPUtil.writeFileToLiteralData(comData.open(bOut), PGPLiteralData.BINARY, new File(fileName));

    comData.close();

    BcPGPDataEncryptorBuilder dataEncryptor = new BcPGPDataEncryptorBuilder(PGPEncryptedData.AES_256);
    dataEncryptor.setWithIntegrityPacket(withIntegrityCheck);
    dataEncryptor.setSecureRandom(new SecureRandom());

    PGPEncryptedDataGenerator encryptedDataGenerator = new PGPEncryptedDataGenerator(dataEncryptor);
    encryptedDataGenerator.addMethod(new BcPublicKeyKeyEncryptionMethodGenerator(encKey));

    byte[] bytes = bOut.toByteArray();
    OutputStream cOut = encryptedDataGenerator.open(out, bytes.length);
    cOut.write(bytes);
    cOut.close();
    out.close();
}
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1 回答 1

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这不是签名，而是装甲数据的信封。关闭装甲，您将获得二进制加密数据。如果您移除信封并继续保护，符合标准的解密 OpenPGP 工具将不知道如何处理 - 他们将无法区分保护数据和非保护数据。

于 2013-01-25T06:40:03.473 回答