[bug#64882] [PATCH v2] doc: cookbook: Document how to disable the Yubikey OTP application.

[Maxim Cournoyer]

* doc/guix-cookbook.texi (Using security keys)
<Disabling OTP code generation for a Yubikey>: New subsection.

---

Changes in v2:
- Mention alternative using the graphical yubikey-manager-qt application

 doc/guix-cookbook.texi | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/doc/guix-cookbook.texi b/doc/guix-cookbook.texi
index 2e58c6c795..4d85dee386 100644
--- a/doc/guix-cookbook.texi
+++ b/doc/guix-cookbook.texi
@@ -21,7 +21,7 @@
 Copyright @copyright{} 2020 André Batista@*
 Copyright @copyright{} 2020 Christine Lemmer-Webber@*
 Copyright @copyright{} 2021 Joshua Branson@*
-Copyright @copyright{} 2022 Maxim Cournoyer@*
+Copyright @copyright{} 2022, 2023 Maxim Cournoyer@*
 Copyright @copyright{} 2023 Ludovic Courtès
 
 Permission is granted to copy, distribute and/or modify this document
@@ -2022,6 +2022,24 @@ Using security keys
 ready to be used with applications supporting two-factor authentication
 (2FA).
 
+@subsection Disabling OTP code generation for a Yubikey
+@cindex disabling yubikey OTP
+If you use a Yubikey security key and are irritated by the spurious OTP
+codes it generates when inadvertently touching the key (e.g. causing you
+to become a spammer in the @samp{#guix} channel when discussing from
+your favorite IRC client!), you can disable it via the following
+@command{ykman} command:
+
+@example
+guix shell python-yubikey-manager -- ykman config usb --force --disable OTP
+@end example
+
+Alternatively, you could use the @command{ykman-gui} command from the
+@code{yubikey-manager-qt} package and either wholly disable the
+@samp{OTP} application from the USB interface or, from the
+@samp{Applications -> OTP} view, delete the configuration of slot 1,
+which comes pre-configured with the Yubico OTP application.
+
 @node Connecting to Wireguard VPN
 @section Connecting to Wireguard VPN
 

base-commit: 782ef67a59f4b564f16101cf23c30a3777b3f734
-- 
2.41.0