65 lines
1.9 KiB
Java
65 lines
1.9 KiB
Java
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package org.bouncycastle.crypto.params;
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import org.bouncycastle.crypto.DerivationParameters;
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import org.bouncycastle.util.Arrays;
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/* loaded from: classes6.dex */
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public final class KDFFeedbackParameters implements DerivationParameters {
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private static final int UNUSED_R = -1;
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private final byte[] fixedInputData;
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private final byte[] iv;
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private final byte[] ki;
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private final int r;
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private final boolean useCounter;
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public final boolean useCounter() {
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return this.useCounter;
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}
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public final int getR() {
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return this.r;
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}
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public final byte[] getKI() {
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return this.ki;
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}
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public final byte[] getIV() {
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return this.iv;
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}
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public final byte[] getFixedInputData() {
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return Arrays.clone(this.fixedInputData);
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}
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public static KDFFeedbackParameters createWithoutCounter(byte[] bArr, byte[] bArr2, byte[] bArr3) {
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return new KDFFeedbackParameters(bArr, bArr2, bArr3, -1, false);
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}
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public static KDFFeedbackParameters createWithCounter(byte[] bArr, byte[] bArr2, byte[] bArr3, int i) {
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if (i == 8 || i == 16 || i == 24 || i == 32) {
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return new KDFFeedbackParameters(bArr, bArr2, bArr3, i, true);
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}
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throw new IllegalArgumentException("Length of counter should be 8, 16, 24 or 32");
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}
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private KDFFeedbackParameters(byte[] bArr, byte[] bArr2, byte[] bArr3, int i, boolean z) {
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if (bArr == null) {
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throw new IllegalArgumentException("A KDF requires Ki (a seed) as input");
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}
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this.ki = Arrays.clone(bArr);
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if (bArr3 == null) {
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this.fixedInputData = new byte[0];
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} else {
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this.fixedInputData = Arrays.clone(bArr3);
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}
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this.r = i;
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if (bArr2 == null) {
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this.iv = new byte[0];
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} else {
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this.iv = Arrays.clone(bArr2);
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}
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this.useCounter = z;
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}
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}
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