org.bouncycastle.cms.jcajce.JceAADStream Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcpkix-jdk15to18 Show documentation

The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

There is a newer version: 1.79

Show newest version

package org.bouncycastle.cms.jcajce;

import java.io.IOException;
import java.io.OutputStream;

import javax.crypto.Cipher;

class JceAADStream
    extends OutputStream
{
     private static final byte[] SINGLE_BYTE = new byte[1];
     private Cipher cipher;

     JceAADStream(Cipher cipher)
     {
         this.cipher = cipher;
     }

     public void write(byte[] buf, int off, int len)
         throws IOException
     {
         cipher.updateAAD(buf, off, len);
     }

     public void write(int b)
         throws IOException
     {
         SINGLE_BYTE[0] = (byte)b;
         cipher.updateAAD(SINGLE_BYTE, 0, 1);
     }
 }