package com.google.android.gms.internal.p002firebaseauthapi;

import java.nio.ByteBuffer;
import java.security.GeneralSecurityException;

/* loaded from: classes.dex */
public final class zzgn extends zzcv {
    private final zzgs zza;
    private final zzwj zzb;
    private final zzwi zzc;
    private final Integer zzd;

    private zzgn(zzgs zzgsVar, zzwj zzwjVar, zzwi zzwiVar, Integer num) {
        this.zza = zzgsVar;
        this.zzb = zzwjVar;
        this.zzc = zzwiVar;
        this.zzd = num;
    }

    public static zzgn zza(zzgr zzgrVar, zzwj zzwjVar, Integer num) {
        zzwi zzb;
        zzgr zzgrVar2 = zzgr.zzc;
        if (zzgrVar != zzgrVar2 && num == null) {
            throw new GeneralSecurityException("For given Variant " + zzgrVar.toString() + " the value of idRequirement must be non-null");
        }
        if (zzgrVar == zzgrVar2 && num != null) {
            throw new GeneralSecurityException("For given Variant NO_PREFIX the value of idRequirement must be null");
        }
        if (zzwjVar.zza() != 32) {
            throw new GeneralSecurityException("XChaCha20Poly1305 key must be constructed with key of length 32 bytes, not " + zzwjVar.zza());
        }
        zzgs zzb2 = zzgs.zzb(zzgrVar);
        if (zzb2.zza() == zzgrVar2) {
            zzb = zzwi.zzb(new byte[0]);
        } else if (zzb2.zza() == zzgr.zzb) {
            zzb = zzwi.zzb(ByteBuffer.allocate(5).put((byte) 0).putInt(num.intValue()).array());
        } else {
            if (zzb2.zza() != zzgr.zza) {
                throw new IllegalStateException("Unknown Variant: ".concat(zzb2.zza().toString()));
            }
            zzb = zzwi.zzb(ByteBuffer.allocate(5).put((byte) 1).putInt(num.intValue()).array());
        }
        return new zzgn(zzb2, zzwjVar, zzb, num);
    }
}