Example usage for org.bouncycastle.crypto.io DigestInputStream DigestInputStream

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.io DigestInputStream DigestInputStream.

Prototype

public DigestInputStream(InputStream stream, Digest digest) 

Source Link

Usage

From source file:com.github.horrorho.inflatabledonkey.file.FileStreamWriter.java

License:Open Source License

public static boolean copy(InputStream in, OutputStream out, Optional<XFileKey> keyCipher,
        Optional<byte[]> signature) throws IOException {

    Digest digest = signature.flatMap(FileSignature::type).orElse(FileSignature.ONE).newDigest();

    DigestInputStream digestInputStream = new DigestInputStream(in, digest);

    IOUtils.copyLarge(decryptStream(digestInputStream, keyCipher), out, new byte[BUFFER_SIZE]);
    out.flush();/*from   w w  w . j  a v a 2  s .c  o  m*/

    return testSignature(digestInputStream.getDigest(), signature);
}

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From source file:com.stg.crypto.IODigestUtility.java

License:Open Source License

/**
 * Wraps the given {@link InputStream} against a digest
 * @param is input stream// w w w. ja  v a  2 s  .  c o  m
 * @return input stream
 */
public static DigestInputStream wrapDigestInputStream(GeneralDigest digest, InputStream is) {
    digest.reset();
    return new DigestInputStream(is, digest);
}

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From source file:edu.wisc.doit.tcrypt.BouncyCastleFileDecrypter.java

License:Apache License

@Override
public InputStream decrypt(InputStream inputStream)
        throws InvalidCipherTextException, IOException, DecoderException {
    final TarArchiveInputStream tarInputStream = new TarArchiveInputStream(inputStream, FileEncrypter.ENCODING);

    final BufferedBlockCipher cipher = createCipher(tarInputStream);

    //Advance to the next entry in the tar file
    tarInputStream.getNextTarEntry();/* w w  w.  java2 s.  com*/

    //Protect the underlying TAR stream from being closed by the cipher stream
    final CloseShieldInputStream is = new CloseShieldInputStream(tarInputStream);

    //Setup the decrypting cipher stream
    final CipherInputStream stream = new CipherInputStream(is, cipher);

    //Generate a digest of the decrypted data
    final GeneralDigest digest = this.createDigester();
    final DigestInputStream digestInputStream = new DigestInputStream(stream, digest);

    return new DecryptingInputStream(digestInputStream, tarInputStream, digest);
}

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From source file:org.xwiki.crypto.internal.digest.BouncyCastleDigest.java

License:Open Source License

@Override
public FilterInputStream getInputStream(InputStream is) {
    digest.reset();
    return new DigestInputStream(is, digest);
}

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