86 lines
2.8 KiB
Java
86 lines
2.8 KiB
Java
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package org.bouncycastle.pqc.crypto.sphincs;
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import org.bouncycastle.crypto.Digest;
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import org.bouncycastle.util.Strings;
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/* loaded from: classes6.dex */
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class HashFunctions {
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private static final byte[] hashc = Strings.toByteArray("expand 32-byte to 64-byte state!");
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private final Digest dig256;
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private final Digest dig512;
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private final Permute perm;
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/* JADX INFO: Access modifiers changed from: package-private */
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public int varlen_hash(byte[] bArr, int i, byte[] bArr2, int i2) {
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this.dig256.update(bArr2, 0, i2);
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this.dig256.doFinal(bArr, i);
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return 0;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public int hash_n_n_mask(byte[] bArr, int i, byte[] bArr2, int i2, byte[] bArr3, int i3) {
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byte[] bArr4 = new byte[32];
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for (int i4 = 0; i4 < 32; i4++) {
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bArr4[i4] = (byte) (bArr2[i2 + i4] ^ bArr3[i3 + i4]);
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}
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return hash_n_n(bArr, i, bArr4, 0);
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public int hash_n_n(byte[] bArr, int i, byte[] bArr2, int i2) {
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byte[] bArr3 = new byte[64];
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for (int i3 = 0; i3 < 32; i3++) {
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bArr3[i3] = bArr2[i2 + i3];
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bArr3[i3 + 32] = hashc[i3];
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}
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this.perm.chacha_permute(bArr3, bArr3);
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for (int i4 = 0; i4 < 32; i4++) {
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bArr[i + i4] = bArr3[i4];
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}
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return 0;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public int hash_2n_n_mask(byte[] bArr, int i, byte[] bArr2, int i2, byte[] bArr3, int i3) {
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byte[] bArr4 = new byte[64];
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for (int i4 = 0; i4 < 64; i4++) {
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bArr4[i4] = (byte) (bArr2[i2 + i4] ^ bArr3[i3 + i4]);
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}
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return hash_2n_n(bArr, i, bArr4, 0);
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}
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int hash_2n_n(byte[] bArr, int i, byte[] bArr2, int i2) {
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byte[] bArr3 = new byte[64];
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for (int i3 = 0; i3 < 32; i3++) {
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bArr3[i3] = bArr2[i2 + i3];
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bArr3[i3 + 32] = hashc[i3];
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}
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this.perm.chacha_permute(bArr3, bArr3);
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for (int i4 = 0; i4 < 32; i4++) {
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bArr3[i4] = (byte) (bArr3[i4] ^ bArr2[(i2 + i4) + 32]);
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}
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this.perm.chacha_permute(bArr3, bArr3);
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for (int i5 = 0; i5 < 32; i5++) {
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bArr[i + i5] = bArr3[i5];
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}
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return 0;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public Digest getMessageHash() {
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return this.dig512;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public HashFunctions(Digest digest, Digest digest2) {
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this.perm = new Permute();
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this.dig256 = digest;
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this.dig512 = digest2;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public HashFunctions(Digest digest) {
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this(digest, null);
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}
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}
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