I have just done some research on SSH and S/Key and I read that S/Key
cannot withstand a brute forced attack [1]
[1] http://www.gentoo-wiki.info/OpenSSH_skey
Mike McGrath wrote:
On Mon, 30 Mar 2009, Damian Myerscough wrote:
Hello,
What about the use of S/Key (one-time passwords) I think it is possible to
deploy SSH with S/Key authentication. I haven't look into it that much but it
could be a possible solution?
If someone had my username, password, and ssh key. How would that prevent
them from getting a otp?
-Mike
susmit shannigrahi wrote:
So I'm not quite sure how to 'fix' this problem. By that I mean, even if
we knew this attack was going to happen I'm not totally sure of a feasible
solution, using only free software, that we could have used to fix it.
Obviously a physical rsa key or the like would have worked but I don't
think we have the manpower nor budget to implement such a system. So I
ask the list, any ideas?
A single use random code/passwd mailed/texted each time one tries to
login and invalidated just after use??
Basically I am referring to RFC 2289[1]
[1]http://www.ietf.org/rfc/rfc2289.txt
Thanks.
--
Regards,
Damian Myerscough
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Regards,
Damian Myerscough
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