src/org/bouncycastle/crypto/io/DigestOutputStream.java

   1 package org.bouncycastle.crypto.io;
   2
   3 import java.io.*;
   4
   5 import org.bouncycastle.crypto.Digest;
   6
   7 public class DigestOutputStream
   8     extends FilterOutputStream
   9 {
  10     protected Digest digest;
  11
  12     public DigestOutputStream(
  13         OutputStream    stream,
  14         Digest          digest)
  15     {
  16         super(stream);
  17         this.digest = digest;
  18     }
  19
  20     public void write(int b)
  21         throws IOException
  22     {
  23         digest.update((byte)b);
  24         out.write(b);
  25     }
  26
  27     public void write(
  28         byte[] b,
  29         int off,
  30         int len)
  31         throws IOException
  32     {
  33         digest.update(b, off, len);
  34         out.write(b, off, len);
  35     }
  36
  37     public Digest getDigest()
  38     {
  39         return digest;
  40     }
  41 }