30 lines
878 B
Java
30 lines
878 B
Java
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package org.bouncycastle.crypto.modes.gcm;
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import org.bouncycastle.util.Arrays;
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/* loaded from: classes6.dex */
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public class BasicGCMExponentiator implements GCMExponentiator {
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private int[] x;
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@Override // org.bouncycastle.crypto.modes.gcm.GCMExponentiator
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public void init(byte[] bArr) {
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this.x = GCMUtil.asInts(bArr);
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}
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@Override // org.bouncycastle.crypto.modes.gcm.GCMExponentiator
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public void exponentiateX(long j, byte[] bArr) {
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int[] oneAsInts = GCMUtil.oneAsInts();
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if (j > 0) {
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int[] clone = Arrays.clone(this.x);
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do {
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if ((1 & j) != 0) {
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GCMUtil.multiply(oneAsInts, clone);
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}
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GCMUtil.multiply(clone, clone);
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j >>>= 1;
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} while (j > 0);
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}
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GCMUtil.asBytes(oneAsInts, bArr);
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}
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}
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