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