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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8 with debug enabled.
package org.bouncycastle.crypto.io;
import java.io.IOException;
import java.io.OutputStream;
import org.bouncycastle.crypto.Mac;
public class MacOutputStream
extends OutputStream
{
protected Mac mac;
public MacOutputStream(
Mac mac)
{
this.mac = mac;
}
public void write(int b)
throws IOException
{
mac.update((byte)b);
}
public void write(
byte[] b,
int off,
int len)
throws IOException
{
mac.update(b, off, len);
}
public byte[] getMac()
{
byte[] res = new byte[mac.getMacSize()];
mac.doFinal(res, 0);
return res;
}
}
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