Date: Wed, 28 May 2008 16:26:07 +0200 From: Sebastian Krahmer <krahmer@...e.de> To: oss-security@...ts.openwall.com Subject: Re: OpenSSH key blacklisting Hi, Last time I looked at the drafts (now RFC) there was no spec for revoking user-keys. However it allows x509 certificates for hostkeys. Its all about the RFCs. OpenSSH folks shouldnt implement proprietary stuff :) At the end of the day SSH is not really a PKI system. The focus has been on different issues. Sebastian On Wed, May 28, 2008 at 03:03:42PM +0100, Tim Brown wrote: > All, > > Maybe I've missed something, in which case, shoot me down, but why unlike > other services that make use of public key cryptography, does OpenSSH not > have use a model which supports proper authorisation and revocation > mechanisms? Would this not be an ideal opportunity to implement this? > Whilst I think there was a reasonable case for such features prior to the > Debian OpenSSL vulnerability being identified, I would argue that this issue > highlights the case. Comercial SSH already has such functionality - can > anyone offer a view on how [well] it works? > > Tim > -- > Tim Brown > <mailto:timb@...-dimension.org.uk> > <http://www.nth-dimension.org.uk/> -- ~ ~ perl self.pl ~ $_='print"\$_=\47$_\47;eval"';eval ~ krahmer@...e.de - SuSE Security Team ~ SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nuernberg)
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