setup pin code leads to incorrect code generation

[zverev-iv]

Case: I Have QR code with all info.

1. I added this TOTP in two apps (andOTP android, but I think you can use anything else) and in flipper TOTP.
2. They show the same code. Codes works.
3. Then I set up pin code on flipper totp (using telnet) and close the app
4. After flipper TOTP restart it shows different codes from andOTP and this code isn't usable

Firmware unlshd-042e

[akopachov]

Could you please provide Authenticator version and your Flipper's firmware and its version?

[zverev-iv]

update information unlshd-042e- https://github.com/DarkFlippers/unleashed-firmware/releases/tag/unlshd-042

[akopachov]

Here is what I did to test this on my Flipper:

1. Grab new secret here
2. Added it to the app
3. Made sure generated code is correct
4. Removed PIN via totp pin remove
5. Made sure generated code is correct
6. Restarted app
7. Made sure generated code is correct
8. Setup new PIN via totp pin set
9. Made sure generated code is correct
10. Restarted app
11. Made sure generated code is correct

So far was not able to reproduce the issue.

Do you remember if any unusual things happened? Or maybe something what is not covered by the test steps I did above? Can you try to reproduce this issue using test website I provided above?

[akopachov]

In any case, logged #123 to make sure there is backup

[akopachov]

Do you remember if any unusual things happened? Or maybe something what is not covered by the test steps I did above? Can you try to reproduce this issue using test website I provided above?

Is there any chance to try it?

[akopachov]

Closing as I was not able to reproduce this issue, author is not responding and the necessary improvements to take a backup before setting\removing PIN is added.

[zverev-iv]

Hi! Sorry for late answer.
I can't reproduce it.
I tried many times. actually happened twice, but perhaps this is due to the time shift in rtc (for example, it leads to a firmware update or something else)

[akopachov]

It could be because of clock drift, if you didn't connect your flipper device to qFlipper for a long.

Also it may occur if user or firmware changed device ID somehow (it should never happens in normal cases, but still it is possible and there was at least on report where user faced such an issue on custom RM firmware).

In any case, thanks for letting me know.