oss-sec mailing list archives

Re: Closed list


From: Michael Gilbert <michael.s.gilbert () gmail com>
Date: Sun, 3 Apr 2011 20:52:13 -0400

Solar Designer wrote:

On Sun, Apr 03, 2011 at 08:11:11PM -0400, Michael Gilbert wrote:
Benji's trolling does raise a couple real issues.  The private keys and
passphrases of those responding here have now become highly lucrative
targets for attackers.  Hence, everyone on this new list needs to use
good practices to keep their keys, hard drives, and computers safe.
There should probably be some common guidelines for key safety for all
participants.

Right.  We're likely to specify some minimum requirements.  For example,
Mike's 512-bit RSA key won't be allowed.  (It is OK for testing, but not
when we use the list for real.  Yet this is an improvement over the
plaintext vendor-sec and plaintext CC lists anyway.)  Maybe storage of
private keys on a server won't be allowed (but we'd have to trust
members on that).

Perhaps all discussions should be published in the open
something like 2 months after the initial posting?  That would be a
kind of maximum private coordination period.

Yes, we may do this.  Technically, an archive may be implemented as yet
another subscriber with its public key, where the private key
counterpart is not stored on any server and has a passphrase on it.
Thus, a possible compromise of the list server won't reveal past
messages (archived before the compromise, but not yet made public).

Pushing the archive public will then be a manual process, but that's OK
if it's only done once a month (omitting the last month's worth of
messages).  In fact, a posting to oss-security will need to be made
whenever the public archive is updated.

Wouldn't the easiest solution be to have a cron job check that the age
of the message is greater than X days, decrypt it, and mail it to a
different archive/public list?

I think automatic publishing is the only way this is going to work.
No one is going to want to manually do the work.  Plus an automatically
enforced maximum time frame will force issues to get fixed.  Automation
also means that nothing is being veiled.  Computers don't discriminate,
humans do.

Best wishes,
Mike


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