Example usage for org.bouncycastle.openpgp PGPLiteralDataGenerator TEXT

Introduction

In this page you can find the example usage for org.bouncycastle.openpgp PGPLiteralDataGenerator TEXT.

Prototype

char TEXT

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Document

Format tag for textual literal data

Usage

From source file:de.jtheuer.diki.lib.pgp.PGPHandler.java

License:Open Source License

/**
 * Encryptes the given input and writes into the output. If the key doesn't exist nothing will happen.
 * @param input input content/*from   www  .ja v a  2s  .  c o m*/
 * @param output output as {@link ArmoredOutputStream} (BASE64)
 * @param keyID the keyID of the PublicKey that should be used
 * @throws PGPException
 * @throws IOException
 * @throws NoSuchProviderException
 */
public void encrypt(InputStream input, OutputStream output, long keyID) throws PGPException, IOException {
    PGPPublicKey encryptkey = null;

    /* take the own key if that is the ID... */
    if (keyID == publickey.getKeyID()) {
        encryptkey = publickey;
    } else {
        encryptkey = keyring.getPublicKey(keyID);
    }

    if (encryptkey != null) {

        PGPEncryptedDataGenerator encryptor = new PGPEncryptedDataGenerator(
                PGPEncryptedDataGenerator.TRIPLE_DES, new SecureRandom(), "BC");

        try {
            encryptor.addMethod(encryptkey);
        } catch (NoSuchProviderException e) {
            LOGGER.log(Level.SEVERE,
                    "provider hasn't been loaded successfully! There is a problem with the Bouncycastle system!",
                    e);
        }
        ArmoredOutputStream armoredOut = new ArmoredOutputStream(output);
        OutputStream encryptedOut = encryptor.open(armoredOut, new byte[256]);
        PGPCompressedDataGenerator compressor = new PGPCompressedDataGenerator(PGPCompressedDataGenerator.ZIP);
        OutputStream compressedOut = compressor.open(encryptedOut);

        PGPLiteralDataGenerator literalor = new PGPLiteralDataGenerator();
        OutputStream literalOut = literalor.open(compressedOut, PGPLiteralDataGenerator.TEXT, "internal",
                new Date(), new byte[256]);

        /* copy from input to output */
        IOUtils.copy(input, literalOut);

        literalor.close();
        compressor.close();
        encryptor.close();
        armoredOut.close();
    }
}

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