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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.modes.gcm;
public class BasicGCMMultiplier
implements GCMMultiplier
{
private long[] H;
public void init(byte[] H)
{
this.H = GCMUtil.asLongs(H);
}
public void multiplyH(byte[] x)
{
long[] t = GCMUtil.asLongs(x);
GCMUtil.multiply(t, H);
GCMUtil.asBytes(t, x);
}
}
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