Sign with two keys then, and try to tell people. After a period of time you could disable the old key (ie no longer sign anything with it) - for anyone who still hasn't updated their configuration their system will still work, but instead of updates they would get errors. Then they would update their config.
(Note that all PPA packages are already available through TLS, eg https://launchpad.net/~fnu/+archive/ubuntu/main- fnu/+build/8797131/+files/cmake-qt-gui_2.8.12.2-3_amd64.deb but only for manual download. It is not used automatically by apt, so to be secure you have to identify and manually download a lot of packages. These can be found through the 'View package details' link at the top right on all PPA main pages) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1461834 Title: 1024-bit signing keys should be deprecated Status in Launchpad itself: New Status in apt package in Ubuntu: Invalid Status in gnupg2 package in Ubuntu: New Bug description: 1024-bit RSA was deprecated years ago by NIST[1], Microsoft[2] and more recently by others[3]. 1024-bit signing keys are insufficient to guarantee the authenticity of software distributed from Launchpad.net including PPAs. There should be a mechanism to refuse signing keys below a minimum key length based on key type. 1024-bit signing keys should be deprecated and removed from Launchpad.net itself ASAP. Future projects and PPAs should be disallowed from using 1024-bit signing keys. 1. http://csrc.nist.gov/publications/nistpubs/800-131A/sp800-131A.pdf 2. http://blogs.technet.com/b/pki/archive/2012/06/12/rsa-keys-under-1024-bits-are-blocked.aspx 3. https://threatpost.com/mozilla-1024-bit-cert-deprecation-leaves-107000-sites-untrusted/108114 To manage notifications about this bug go to: https://bugs.launchpad.net/launchpad/+bug/1461834/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
