bug#64882: [PATCH] doc: cookbook: Document how to disable the Yubikey OTP application.

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hi!

John Kehayias <john.kehayias@protonmail.com> writes:

[...]

>>> Otherwise, LGTM, but a user should be aware if they are using/needed OTP
>>> before disabling it.
>>
>> I'm not sure when OTP is useful; it's not useful for the current use
>> case I'm using my Yubikey (which is currently the two-factor
>> authentication on web sites).
>
> I checked and I have OTP disabled on my Yubikey as well; I used 'ykman
> info' to see. I use it as my smart card essentially (as the keys for
> passwords, SSH, signing commits, etc.) as well as two-factor codes.
>
> I found this <https://www.yubico.com/resources/glossary/yubico-otp/>
> about OTP. If I remember now, it is a service that some sites will use
> to use your Yubikey for authentication, as I think LastPass had
> support for (I no longer use that). I think U2F is more ubiquitous and
> used more now anyway. But it is enabled by default and I would guess
> many people don't use it.

The yubikey-manager-qt package has since been added, providing a GUI to
do the same, so I've expound the how-to with it, and installed the change.

Thanks for the review!

-- 
Maxim