74 lines
3.1 KiB
Java
74 lines
3.1 KiB
Java
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package org.bouncycastle.crypto.params;
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import com.google.common.base.Ascii;
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import net.sf.scuba.smartcards.ISO7816;
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/* loaded from: classes6.dex */
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public class DESParameters extends KeyParameter {
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public static final int DES_KEY_LENGTH = 8;
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private static byte[] DES_weak_keys = {1, 1, 1, 1, 1, 1, 1, 1, Ascii.US, Ascii.US, Ascii.US, Ascii.US, 14, 14, 14, 14, ISO7816.INS_CREATE_FILE, ISO7816.INS_CREATE_FILE, ISO7816.INS_CREATE_FILE, ISO7816.INS_CREATE_FILE, -15, -15, -15, -15, -2, -2, -2, -2, -2, -2, -2, -2, 1, -2, 1, -2, 1, -2, 1, -2, Ascii.US, ISO7816.INS_CREATE_FILE, Ascii.US, ISO7816.INS_CREATE_FILE, 14, -15, 14, -15, 1, ISO7816.INS_CREATE_FILE, 1, ISO7816.INS_CREATE_FILE, 1, -15, 1, -15, Ascii.US, -2, Ascii.US, -2, 14, -2, 14, -2, 1, Ascii.US, 1, Ascii.US, 1, 14, 1, 14, ISO7816.INS_CREATE_FILE, -2, ISO7816.INS_CREATE_FILE, -2, -15, -2, -15, -2, -2, 1, -2, 1, -2, 1, -2, 1, ISO7816.INS_CREATE_FILE, Ascii.US, ISO7816.INS_CREATE_FILE, Ascii.US, -15, 14, -15, 14, ISO7816.INS_CREATE_FILE, 1, ISO7816.INS_CREATE_FILE, 1, -15, 1, -15, 1, -2, Ascii.US, -2, Ascii.US, -2, 14, -2, 14, Ascii.US, 1, Ascii.US, 1, 14, 1, 14, 1, -2, ISO7816.INS_CREATE_FILE, -2, ISO7816.INS_CREATE_FILE, -2, -15, -2, -15};
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private static final int N_DES_WEAK_KEYS = 16;
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public static void setOddParity(byte[] bArr) {
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for (int i = 0; i < bArr.length; i++) {
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byte b = bArr[i];
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bArr[i] = (byte) ((b & 254) | ((((b >> 7) ^ ((((((b >> 1) ^ (b >> 2)) ^ (b >> 3)) ^ (b >> 4)) ^ (b >> 5)) ^ (b >> 6))) ^ 1) & 1));
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}
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}
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/* JADX WARN: Code restructure failed: missing block: B:12:0x001c, code lost:
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r2 = r2 + 1;
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*/
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/*
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Code decompiled incorrectly, please refer to instructions dump.
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To view partially-correct add '--show-bad-code' argument
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*/
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public static boolean isWeakKey(byte[] r7, int r8) {
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/*
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int r0 = r7.length
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int r0 = r0 - r8
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r1 = 8
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if (r0 < r1) goto L25
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r0 = 0
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r2 = r0
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L8:
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r3 = 16
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if (r2 >= r3) goto L24
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r3 = r0
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Ld:
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if (r3 >= r1) goto L22
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int r4 = r3 + r8
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r4 = r7[r4]
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byte[] r5 = org.bouncycastle.crypto.params.DESParameters.DES_weak_keys
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int r6 = r2 << 3
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int r6 = r6 + r3
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r5 = r5[r6]
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if (r4 == r5) goto L1f
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int r2 = r2 + 1
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goto L8
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L1f:
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int r3 = r3 + 1
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goto Ld
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L22:
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r7 = 1
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return r7
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L24:
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return r0
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L25:
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java.lang.IllegalArgumentException r7 = new java.lang.IllegalArgumentException
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java.lang.String r8 = "key material too short."
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r7.<init>(r8)
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throw r7
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*/
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throw new UnsupportedOperationException("Method not decompiled: org.bouncycastle.crypto.params.DESParameters.isWeakKey(byte[], int):boolean");
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}
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public DESParameters(byte[] bArr) {
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super(bArr);
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if (isWeakKey(bArr, 0)) {
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throw new IllegalArgumentException("attempt to create weak DES key");
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}
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}
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}
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