package org.bouncycastle.jcajce.provider.asymmetric.util;

import java.util.HashSet;
import java.util.Set;
import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.util.Strings;

/* loaded from: classes6.dex */
public class DESUtil {
    private static final Set<String> des;

    public static void setOddParity(byte[] bArr) {
        for (int i = 0; i < bArr.length; i++) {
            byte b = bArr[i];
            bArr[i] = (byte) ((b & 254) | ((((b >> 7) ^ ((((((b >> 1) ^ (b >> 2)) ^ (b >> 3)) ^ (b >> 4)) ^ (b >> 5)) ^ (b >> 6))) ^ 1) & 1));
        }
    }

    public static boolean isDES(String str) {
        return des.contains(Strings.toUpperCase(str));
    }

    static {
        HashSet hashSet = new HashSet();
        des = hashSet;
        hashSet.add("DES");
        hashSet.add("DESEDE");
        hashSet.add(OIWObjectIdentifiers.desCBC.getId());
        hashSet.add(PKCSObjectIdentifiers.des_EDE3_CBC.getId());
        hashSet.add(PKCSObjectIdentifiers.des_EDE3_CBC.getId());
        hashSet.add(PKCSObjectIdentifiers.id_alg_CMS3DESwrap.getId());
    }
}