77 lines
2.5 KiB
Java
77 lines
2.5 KiB
Java
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package org.bouncycastle.crypto.macs;
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import org.bouncycastle.crypto.CipherParameters;
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import org.bouncycastle.crypto.Mac;
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import org.bouncycastle.crypto.digests.SkeinEngine;
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import org.bouncycastle.crypto.params.KeyParameter;
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import org.bouncycastle.crypto.params.SkeinParameters;
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/* loaded from: classes6.dex */
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public class SkeinMac implements Mac {
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public static final int SKEIN_1024 = 1024;
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public static final int SKEIN_256 = 256;
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public static final int SKEIN_512 = 512;
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private SkeinEngine engine;
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@Override // org.bouncycastle.crypto.Mac
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public void update(byte[] bArr, int i, int i2) {
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this.engine.update(bArr, i, i2);
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}
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@Override // org.bouncycastle.crypto.Mac
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public void update(byte b) {
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this.engine.update(b);
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}
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@Override // org.bouncycastle.crypto.Mac
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public void reset() {
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this.engine.reset();
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}
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@Override // org.bouncycastle.crypto.Mac
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public void init(CipherParameters cipherParameters) throws IllegalArgumentException {
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SkeinParameters build;
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if (cipherParameters instanceof SkeinParameters) {
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build = (SkeinParameters) cipherParameters;
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} else {
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if (!(cipherParameters instanceof KeyParameter)) {
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StringBuilder sb = new StringBuilder("Invalid parameter passed to Skein MAC init - ");
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sb.append(cipherParameters.getClass().getName());
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throw new IllegalArgumentException(sb.toString());
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}
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build = new SkeinParameters.Builder().setKey(((KeyParameter) cipherParameters).getKey()).build();
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}
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if (build.getKey() == null) {
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throw new IllegalArgumentException("Skein MAC requires a key parameter.");
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}
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this.engine.init(build);
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}
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@Override // org.bouncycastle.crypto.Mac
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public int getMacSize() {
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return this.engine.getOutputSize();
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}
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@Override // org.bouncycastle.crypto.Mac
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public String getAlgorithmName() {
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StringBuilder sb = new StringBuilder("Skein-MAC-");
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sb.append(this.engine.getBlockSize() << 3);
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sb.append("-");
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sb.append(this.engine.getOutputSize() << 3);
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return sb.toString();
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}
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@Override // org.bouncycastle.crypto.Mac
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public int doFinal(byte[] bArr, int i) {
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return this.engine.doFinal(bArr, i);
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}
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public SkeinMac(SkeinMac skeinMac) {
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this.engine = new SkeinEngine(skeinMac.engine);
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}
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public SkeinMac(int i, int i2) {
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this.engine = new SkeinEngine(i, i2);
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}
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}
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