[Bug 1363482] Re: ubuntu-keyring includes 1024D keys

[Marc Deslauriers]

Precise archive is only signed with the old key. To support using the
precise archive in newer releases, such as with debootstrap, we need to
do the following:

1- Make sure Precise's apt supports a double-signed release file
2- Start double-signing the Precise archive
3- Double-sign old ISO *SUMS files

We can then drop the old key in the dev release and in an update to
stable releases.

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https://bugs.launchpad.net/bugs/1363482

Title:
  ubuntu-keyring includes 1024D keys

Status in Ubuntu CD Images:
  New
Status in ubuntu-keyring package in Ubuntu:
  Confirmed

Bug description:
  ubuntu-keyring as shipped in trusty contains old 1024D keys dating
  back to 2004 which are still being trusted for the main archive:

   % gpg /usr/share/keyrings/ubuntu-archive-keyring.gpg | grep 1024D
  pub  1024D/437D05B5 2004-09-12 Ubuntu Archive Automatic Signing Key <ftpmaster at ubuntu.com>
  pub  1024D/FBB75451 2004-12-30 Ubuntu CD Image Automatic Signing Key <cdimage at ubuntu.com>

  Given that newer 4096R keys are present and have been in precise
  (through -updates) and trusty, it seems to be about time to drop the
  older keys. (In the hope that apt does not chose on signatures it
  cannot verify, otherwise the publisher would need to stop signing with
  the old key as well.)

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