Bypass Authenticator 25 limit

zeroaphex · February 16, 2025, 1:15pm

I’ve got the Vivokey Apex and I love it. it does all my 2fa with the authenticator, but I’ve hit a hard limit of 25. Is it possible to go beyond this somehow?

Aoxhwjfoavdlhsvfpzha · February 16, 2025, 1:28pm

Do you have free space on the Apex to fit more?

I don’t recall hearing about a limit before

zeroaphex · February 16, 2025, 1:33pm

48% free. I’ve tried deleting and re-adding the app before. hits 25 and refuses to add more.

Pilgrimsmaster · February 16, 2025, 6:19pm

@hoker
@StarGate01

Any limitations you guys are aware of in either the app or the P71?

StarGate01 · February 16, 2025, 6:33pm

I don’t know of a limit in the applet itself. Did you try with the Yubikey Authenticator desktop or mobile apps as well for cross checking?

xnzakg · February 16, 2025, 6:46pm

I’m pretty sure they’re talking about the OTP authenticator and not the U2F one?
edit: yeah that’s also a yubikey applet technically, my bad.
assuming the apex applet is actually what’s on github:

github.com/VivoKey/apex-totp

src/com/vivokey/otp/YkneoOath.java

e4ea9aa81

package com.vivokey.otp;

/*
 * Copyright (c) 2013-2015 Yubico AB
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import javacard.framework.APDU;

This file has been truncated. show original

then there doesn’t seem to be a limit there?

StarGate01 · February 16, 2025, 7:17pm

Yea the Vivokey OTP applet is compatible with the Yubikey OTP protocol.

amal · February 16, 2025, 7:26pm

Can you screenshot the error?

zeroaphex · February 17, 2025, 12:30pm

I had to add it to MS authenticator, I’ll setup another account asap and do so.

zeroaphex · February 19, 2025, 2:10pm

So I tried to add a different one, but there was no error.
I would click the save, then scan. After the scan it just brought me back to the save screen. However I think this might be on me somehow.
My old phone allowed me to add the new auth.
So I whacked it off my current phone and reinstalled everything.
Now it seems to be working.
Sorry for the false alarm

Aoxhwjfoavdlhsvfpzha · February 19, 2025, 2:14pm

Glad to hear it worked out!