Getting GPG signature verification error The following signatures were invalid: NODATA 1 NODATA 2

[shirish शिरीष]

Hi Mike,
        Today while updating the distribution I got the following error :-

W: A error occurred during the signature verification. The repository
is not updated and the previous index files will be used. GPG error:
http://mozilla.debian.net ./ Release: The following signatures were
invalid: NODATA 1 NODATA 2

I do not know why this error came. I have just couple of months ago
started with Debian on a Squeeze snapshot (which means the legacy
issues which you have mentioned in the webpage shouldn't happen/be
there)

I refer to the instructions given here :-

http://mozilla.debian.net/

"You can thus also expect the last signature validation to differ
depending on the Debian keyring version you use. "

Now does it mean that I need to install a new version of Debian-keyring ?

I have got Debian keyring version 2010.12.29

-- 
          Regards,
          Shirish Agarwal  शिरीष अग्रवाल
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