64 lines
1.9 KiB
Java
64 lines
1.9 KiB
Java
package org.bouncycastle.crypto.digests;
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import org.bouncycastle.crypto.ExtendedDigest;
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/* loaded from: classes6.dex */
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public class ShortenedDigest implements ExtendedDigest {
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private ExtendedDigest baseDigest;
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private int length;
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@Override // org.bouncycastle.crypto.Digest
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public void update(byte[] bArr, int i, int i2) {
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this.baseDigest.update(bArr, i, i2);
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}
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@Override // org.bouncycastle.crypto.Digest
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public void update(byte b) {
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this.baseDigest.update(b);
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}
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@Override // org.bouncycastle.crypto.Digest
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public void reset() {
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this.baseDigest.reset();
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}
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@Override // org.bouncycastle.crypto.Digest
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public int getDigestSize() {
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return this.length;
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}
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@Override // org.bouncycastle.crypto.ExtendedDigest
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public int getByteLength() {
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return this.baseDigest.getByteLength();
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}
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@Override // org.bouncycastle.crypto.Digest
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public String getAlgorithmName() {
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StringBuilder sb = new StringBuilder();
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sb.append(this.baseDigest.getAlgorithmName());
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sb.append("(");
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sb.append(this.length << 3);
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sb.append(")");
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return sb.toString();
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}
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@Override // org.bouncycastle.crypto.Digest
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public int doFinal(byte[] bArr, int i) {
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byte[] bArr2 = new byte[this.baseDigest.getDigestSize()];
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this.baseDigest.doFinal(bArr2, 0);
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System.arraycopy(bArr2, 0, bArr, i, this.length);
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return this.length;
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}
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public ShortenedDigest(ExtendedDigest extendedDigest, int i) {
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if (extendedDigest == null) {
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throw new IllegalArgumentException("baseDigest must not be null");
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}
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if (i > extendedDigest.getDigestSize()) {
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throw new IllegalArgumentException("baseDigest output not large enough to support length");
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}
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this.baseDigest = extendedDigest;
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this.length = i;
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}
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}
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