1 package org.bouncycastle.crypto.io; 2 3 import java.io.IOException; 4 import java.io.OutputStream; 5 6 import org.bouncycastle.crypto.Mac; 7 8 public 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 byte[] res = new byte[mac.getMacSize()]; 37 38 mac.doFinal(res, 0); 39 40 return res; 41 } 42 } 43
