98 lines
3.0 KiB
Java
98 lines
3.0 KiB
Java
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package com.google.android.gms.internal.p002firebaseauthapi;
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import java.security.GeneralSecurityException;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.Key;
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import java.security.NoSuchAlgorithmException;
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import java.util.Arrays;
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import javax.crypto.Mac;
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/* loaded from: classes2.dex */
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public final class zzqn implements zzjk {
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private final ThreadLocal zza;
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private final String zzb;
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private final Key zzc;
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private final int zzd;
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/* JADX WARN: Can't fix incorrect switch cases order, some code will duplicate */
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public zzqn(String str, Key key) throws GeneralSecurityException {
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char c;
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int i;
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zzqm zzqmVar = new zzqm(this);
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this.zza = zzqmVar;
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if (!zzdv.zza(2)) {
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throw new GeneralSecurityException("Can not use HMAC in FIPS-mode, as BoringCrypto module is not available.");
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}
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this.zzb = str;
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this.zzc = key;
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if (key.getEncoded().length < 16) {
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throw new InvalidAlgorithmParameterException("key size too small, need at least 16 bytes");
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}
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switch (str.hashCode()) {
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case -1823053428:
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if (str.equals("HMACSHA1")) {
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c = 0;
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break;
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}
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c = 65535;
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break;
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case 392315023:
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if (str.equals("HMACSHA224")) {
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c = 1;
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break;
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}
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c = 65535;
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break;
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case 392315118:
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if (str.equals("HMACSHA256")) {
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c = 2;
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break;
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}
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c = 65535;
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break;
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case 392316170:
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if (str.equals("HMACSHA384")) {
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c = 3;
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break;
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}
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c = 65535;
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break;
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case 392317873:
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if (str.equals("HMACSHA512")) {
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c = 4;
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break;
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}
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c = 65535;
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break;
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default:
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c = 65535;
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break;
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}
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if (c == 0) {
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i = 20;
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} else if (c == 1) {
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i = 28;
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} else if (c == 2) {
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i = 32;
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} else if (c == 3) {
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i = 48;
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} else {
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if (c != 4) {
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throw new NoSuchAlgorithmException("unknown Hmac algorithm: ".concat(str));
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}
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i = 64;
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}
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this.zzd = i;
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zzqmVar.get();
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}
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@Override // com.google.android.gms.internal.p002firebaseauthapi.zzjk
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public final byte[] zza(byte[] bArr, int i) throws GeneralSecurityException {
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if (i > this.zzd) {
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throw new InvalidAlgorithmParameterException("tag size too big");
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}
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((Mac) this.zza.get()).update(bArr);
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return Arrays.copyOf(((Mac) this.zza.get()).doFinal(), i);
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}
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}
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