Unlikely this is something that could be fixed in gnupg; but I'm surprised this is the first time you're seeing this notice, too.
** Information type changed from Private Security to Public ** Package changed: gnupg (Ubuntu) => software-center (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to software-center in Ubuntu. https://bugs.launchpad.net/bugs/1237811 Title: gnupg update shows untrusted source message Status in “software-center” package in Ubuntu: New Bug description: Ubuntu 12.04 with all updates Installed gnupg version: 1.4.11-3ubuntu2.3 Update available gnupg version: 1.4.11-3ubuntu2.4 Software update popped up saying updates were available for gnupg. When downloaded, message displayed was "Requires installation of untrusted packages The action would require the installation of packages from not authenticated sources." ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnupg 1.4.11-3ubuntu2.3 ProcVersionSignature: Ubuntu 3.2.0-54.82-generic 3.2.50 Uname: Linux 3.2.0-54-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.5 Architecture: amd64 CheckboxSubmission: b5f5c7bc16a7f581f291fede80c2dbf8 CheckboxSystem: 3935143777c965daaa64b51f0134f712 Date: Thu Oct 10 02:22:38 2013 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnupg UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/1237811/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

