Date: Fri, 16 May 2008 19:10:58 -0300 From: "Gustavo De Nardin (spuk)" <gustavodn@...driva.com> To: oss-security@...ts.openwall.com Subject: Re: OpenSSH key blacklisting * Solar Designer <solar@...nwall.com> [2008-05-17 01:58 +0400]: > On Fri, May 16, 2008 at 05:10:43PM -0300, Gustavo De Nardin (spuk) wrote: > > If this is going to be accepted as a more general solution, it'd be good to > > allow also for local, admin-maintened, blacklists, not just upstream > > maintened (and automatically updated). > > I agree that this might be desirable functionality, but unfortunately it > has a price - we'd have to maintain two file parsers and lookup > algorithms (perhaps binary and indexed, and text and sequential) or an > additional program to update the binary file. (If we only create the > binary file ourselves, then that program can be a quick hack - maybe > even a Perl script.) > > Has there been any demand for such blacklists, prior to the Debian issue > coming up? If not, then this additional feature is probably not worth > implementing right away. Not that I know of. I just imagined somewhere could have a policy like "all keys must have X bits" or ".. X or larger" X being a non-default size. So even if the database would be customized to have the extra keys, auto-upgrading it (which would be desirable) could be a problem. Not a big deal to me, personally.
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