Examples of java.security.DigestOutputStream

java.security.DigestOutputStream
A transparent stream that updates the associated message digest using the bits going through the stream.
To complete the message digest computation, call one of the digest methods on the associated message digest after your calls to one of this digest ouput stream's {@link #write(int) write} methods.
It is possible to turn this stream on or off (see {@link #on(boolean) on}). When it is on, a call to one of the write methods results in an update on the message digest. But when it is off, the message digest is not updated. The default is for the stream to be on. @see MessageDigest @see DigestInputStream @version 1.32 05/11/17 @author Benjamin Renaud

            md = MessageDigest.getInstance("SHA-1");
        } catch (NoSuchAlgorithmException e) {
            throw new IllegalStateException("Algorithm SHA-1 is not available", e);
        }
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DigestOutputStream dos = new DigestOutputStream(baos, md);
        DataOutputStream das = new DataOutputStream(dos);


        StringBuilder sb = new StringBuilder();
        sb.append(methodName);
        sb.append(methodDescriptor);

View Full Code Here

           throws Exception
   {
      long hash = 0;
      ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream(512);
      MessageDigest messagedigest = MessageDigest.getInstance("SHA");
      DataOutputStream dataoutputstream = new DataOutputStream(new DigestOutputStream(bytearrayoutputstream, messagedigest));
      dataoutputstream.writeUTF(methodDesc);
      dataoutputstream.flush();
      byte abyte0[] = messagedigest.digest();
      for (int j = 0; j < Math.min(8, abyte0.length); j++)
         hash += (long) (abyte0[j] & 0xff) << j * 8;

View Full Code Here

           throws Exception
   {
      long hash = 0;
      ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream(512);
      MessageDigest messagedigest = MessageDigest.getInstance("SHA");
      DataOutputStream dataoutputstream = new DataOutputStream(new DigestOutputStream(bytearrayoutputstream, messagedigest));
      dataoutputstream.writeUTF(methodDesc);
      dataoutputstream.flush();
      byte abyte0[] = messagedigest.digest();
      for (int j = 0; j < Math.min(8, abyte0.length); j++)
         hash += (long) (abyte0[j] & 0xff) << j * 8;

View Full Code Here


        } else
            try {
                ByteArrayOutputStream barr = new ByteArrayOutputStream(512);
                MessageDigest md = MessageDigest.getInstance("SHA");
                DigestOutputStream digestout = new DigestOutputStream(barr, md);
                DataOutputStream out = new DataOutputStream(digestout);


                Class superType = type.getSuperclass();
                if (superType != null) {
                    TypeDescriptor desc = getTypeRepository().getDescriptor(

View Full Code Here

            if (java.io.Externalizable.class.isAssignableFrom(c))
            {
                return 1;
            }
            MessageDigest md = MessageDigest.getInstance("SHA");
            DigestOutputStream mdo = new DigestOutputStream(devnull, md);
            DataOutputStream data = new DataOutputStream(mdo);
            if (vt.parent != null)
            {
                data.writeLong(computeStructuralUID(vt.parent));
            }

View Full Code Here

      this.conf = conf;
      this.key = key;
      this.backupFile = newBackupFile();
      try {
        this.digest = MessageDigest.getInstance("MD5");
        this.backupStream = new BufferedOutputStream(new DigestOutputStream(
            new FileOutputStream(backupFile), this.digest));
      } catch (NoSuchAlgorithmException e) {
        LOG.warn("Cannot load MD5 digest algorithm," +
            "skipping message integrity check.", e);
        this.backupStream = new BufferedOutputStream(

View Full Code Here

    }
  }


  void writeTo(final OutputStream os) throws IOException {
    final MessageDigest foot = Constants.newMessageDigest();
    final DigestOutputStream dos = new DigestOutputStream(os, foot);


    boolean extended = false;
    for (int i = 0; i < entryCnt; i++)
      extended |= sortedEntries[i].isExtended();


    // Write the header.
    //
    final byte[] tmp = new byte[128];
    System.arraycopy(SIG_DIRC, 0, tmp, 0, SIG_DIRC.length);
    NB.encodeInt32(tmp, 4, extended ? 3 : 2);
    NB.encodeInt32(tmp, 8, entryCnt);
    dos.write(tmp, 0, 12);


    // Write the individual file entries.
    //
    if (snapshot == null) {
      // Write a new index, as no entries require smudging.
      //
      for (int i = 0; i < entryCnt; i++)
        sortedEntries[i].write(dos);
    } else {
      final int smudge_s = (int) (snapshot.lastModified() / 1000);
      final int smudge_ns = ((int) (snapshot.lastModified() % 1000)) * 1000000;
      for (int i = 0; i < entryCnt; i++) {
        final DirCacheEntry e = sortedEntries[i];
        if (e.mightBeRacilyClean(smudge_s, smudge_ns))
          e.smudgeRacilyClean();
        e.write(dos);
      }
    }


    if (tree != null) {
      final TemporaryBuffer bb = new TemporaryBuffer.LocalFile();
      tree.write(tmp, bb);
      bb.close();


      NB.encodeInt32(tmp, 0, EXT_TREE);
      NB.encodeInt32(tmp, 4, (int) bb.length());
      dos.write(tmp, 0, 8);
      bb.writeTo(dos, null);
    }
    writeIndexChecksum = foot.digest();
    os.write(writeIndexChecksum);
    os.close();

View Full Code Here

        File tmp = File.createTempFile(name, "tmp", repoRoot);
        FileOutputStream fos = new FileOutputStream(tmp);
        synchronized (messageDigest) {
            messageDigest.reset();
            try {
                DigestOutputStream dos = new DigestOutputStream(fos, messageDigest);
                BufferedInputStream bis = new BufferedInputStream(stream);
                byte[] bytes = new byte[8192];
                int read;
                while ((read = bis.read(bytes)) > -1) {
                    dos.write(bytes, 0, read);
                }
            }
            finally {
                try { fos.close(); } catch (Exception ignored) {}
            }

View Full Code Here

                File tmp = File.createTempFile(CONTENT, "tmp", repoRoot);
                FileOutputStream fos = new FileOutputStream(tmp);
                synchronized (messageDigest) {
                    messageDigest.reset();
                    try {
                        DigestOutputStream dos = new DigestOutputStream(fos, messageDigest);
                        BufferedInputStream bis = new BufferedInputStream(stream);
                        byte[] bytes = new byte[8192];
                        int read;
                        while ((read = bis.read(bytes)) > -1) {
                            dos.write(bytes, 0, read);
                        }
                        fos.flush();
                        fos.getFD().sync();
                        fos.close();
                        fos = null;

View Full Code Here

                File tmp = File.createTempFile(CONTENT, "tmp", repoRoot);
                FileOutputStream fos = new FileOutputStream(tmp);
                synchronized (messageDigest) {
                    messageDigest.reset();
                    try {
                        DigestOutputStream dos = new DigestOutputStream(fos, messageDigest);
                        BufferedInputStream bis = new BufferedInputStream(stream);
                        byte[] bytes = new byte[8192];
                        int read;
                        while ((read = bis.read(bytes)) > -1) {
                            dos.write(bytes, 0, read);
                        }
                        fos.flush();
                        fos.getFD().sync();
                        fos.close();
                        fos = null;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of java.security.DigestOutputStream

ca.eandb.util.ClassUtil

com.alexkasko.delta.DirDeltaPatcher

com.android.builder.signing.SignedJarBuilder

com.android.sdklib.internal.build.SignedJarBuilder

com.android.signapk.SignApk

com.emc.vipr.transform.compression.DeflateOutputStream

com.emc.vipr.transform.compression.LZMAOutputStream

com.emc.vipr.transform.encryption.EncryptionOutputStream

com.lightboxtechnologies.spectrum.ExtractMapper

com.netflix.zeno.hash.HashOrderDependent

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.