gpg keys missing, how to fix?

Hi all; Whenever I do a package-manager or synaptic refresh, I am getting a squawk about missing keys, specifically about a mozilla update from wheezy-backports. And I just discovered that this error window can now be highlighted for a copy/paste, the lack of which I have silently bitched about for years. Whoever fixed that I owe a case of suds to, hold up ypur hand and identify yourself. Thank you very much. So here is the error message from synaptic: ======= W: GPG error: http://mozilla.debian.net wheezy-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 85A3D26506C4AE2A W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://http.debian.net wheezy-updates Release: The following signatures were invalid: BADSIG 8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy) &lt;ftpmaster(a)debian.org&gt; W: Failed to fetch http://http.us.debian.org/debian/dists/wheezy/Release Unable to find expected entry 'updates/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file) W: Failed to fetch http://http.debian.net/debian/dists/wheezy-updates/Release W: Some index files failed to download. They have been ignored, or old ones used instead. ========== Looks like I am missing 2 gpg sigs then. I assume there is an apt-get or apt-key command that I can invoke, but I'll be dipped if I can remember how it works. Can someone show me the cli command? Thanks. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>