Repository signature error

[Barrakketh]

Specifically, I'm getting a bad signature error for security.ubuntu.com.

$ sudo apt-get update
Get:1 http://us.archive.ubuntu.com breezy Release.gpg [189B]
Get:2 http://us.archive.ubuntu.com breezy-updates Release.gpg [189B]
Hit http://us.archive.ubuntu.com breezy Release
Hit http://us.archive.ubuntu.com breezy-updates Release
Get:3 ftp://ftp.free.fr breezy Release.gpg
Hit http://us.archive.ubuntu.com breezy/main Packages
Hit http://us.archive.ubuntu.com breezy/restricted Packages
Ign ftp://ftp.free.fr breezy Release.gpg
Hit http://us.archive.ubuntu.com breezy/main Sources
Get:4 ftp://ftp.free.fr breezy Release
Hit http://us.archive.ubuntu.com breezy/restricted Sources
Hit http://us.archive.ubuntu.com breezy/universe Packages
Get:5 http://security.ubuntu.com breezy-security Release.gpg [189B]
Ign ftp://ftp.free.fr breezy Release
Hit http://us.archive.ubuntu.com breezy/universe Sources
Hit http://security.ubuntu.com breezy-security Release
Ign http://security.ubuntu.com breezy-security Release
Get:6 http://seveas.ubuntulinux.nl breezy-seveas Release.gpg [307B]
Hit http://security.ubuntu.com breezy-security/main Packages
Get:7 ftp://ftp.free.fr breezy/free Packages
Hit http://us.archive.ubuntu.com breezy/multiverse Packages
Hit http://seveas.ubuntulinux.nl breezy-seveas Release
Hit http://security.ubuntu.com breezy-security/restricted Packages
Hit http://security.ubuntu.com breezy-security/main Sources
Hit http://seveas.ubuntulinux.nl breezy-seveas/freenx Packages
Hit http://us.archive.ubuntu.com breezy/multiverse Sources
Hit http://security.ubuntu.com breezy-security/restricted Sources
Ign ftp://ftp.free.fr breezy/free Packages
Hit http://us.archive.ubuntu.com breezy-updates/main Packages
Get:8 ftp://ftp.free.fr breezy/non-free Packages
Hit http://us.archive.ubuntu.com breezy-updates/restricted Packages
Hit http://us.archive.ubuntu.com breezy-updates/main Sources
Ign ftp://ftp.free.fr breezy/non-free Packages
Get:9 ftp://ftp.free.fr breezy/free Sources
Ign ftp://ftp.free.fr breezy/free Sources
Hit http://us.archive.ubuntu.com breezy-updates/restricted Sources
Get:10 ftp://ftp.free.fr breezy/non-free Sources
Ign ftp://ftp.free.fr breezy/non-free Sources
Hit ftp://ftp.free.fr breezy/free Packages
Hit ftp://ftp.free.fr breezy/non-free Packages
Hit ftp://ftp.free.fr breezy/free Sources
Hit ftp://ftp.free.fr breezy/non-free Sources
Fetched 192B in 23s (8B/s)
Reading package lists... Done
W: GPG error: http://security.ubuntu.com breezy-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: You may want to run apt-get update to correct these problems

Running apt-get update again did not correct those problems :p

Any ideas as to what the problem is? It's been working fine since it [Kubuntu] was installed and I never have had a problem with it.

[Turin Turambar]

I have the same problem as well. Possibly some temporary error.

[the_duce]

I had the same problem which has been solved. (http://http://ubuntuforums.org/showthread.php?t=128602)

[Turin Turambar]

Hahaha! The duce, your link is taking straight to hell - right on Microsoft official page. ::mrgreen:

[aysiu]

There are two https in there: http://http//ubuntuforums.org/showthread.php?t=128602

Use this instead:
http://ubuntuforums.org/showthread.php?t=128602

[Barrakketh]

I had the same problem which has been solved. (http://http://ubuntuforums.org/showthread.php?t=128602)
That did the trick. I'm not used to things breaking without me touching them. That's Windows' department :D

Thanks.