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Re: A plan for PKIX, LDAPv3, and ;binary




"Kurt D. Zeilenga" wrote:

> The current LDAPv3 technical specification [RFC 3377] does not
> state what is to be returned when "userCertificate" is requested
> (as this is a non-conformant request).  There are clients which
> expect:
>         a) return the certificate using "userCertificate;binary" or
>         b) return the certificate using "userCertificate".
> 
> (as well as clients which accept either)
> 
> As a server cannot support both at the same time, there is
> clearly an interoperability divide between implementations
> of these behaviors. 

Kurt

since servers typically must support LDAPv2 and LDAPv3 at the same time,
and LDAPv2 asks for userCertificate whilst LDAPv3 should ask for
userCertificate;binary, then clearly servers today SHOULD be able to
support both types of attribute request

David

> To preserve interoperability on either
> side of that divide, no statement is made which would require
> a server implementation to cross the divide.
> 
> That is, it is suggested that servers not be restricted in
> how they respond to a non-conformant request so as to allow
> current interoperability with ill-behaving clients.
> 
> Kurt

-- 
*****************************************************************

David W. Chadwick, BSc PhD
Professor of Information Systems Security
IS Institute, University of Salford, Salford M5 4WT
Tel: +44 161 295 5351  Fax +44 01484 532930
Mobile: +44 77 96 44 7184
Email: D.W.Chadwick@salford.ac.uk
Home Page:  http://www.salford.ac.uk/its024/chadwick.htm
Research Projects: http://sec.isi.salford.ac.uk
Understanding X.500:  http://www.salford.ac.uk/its024/X500.htm
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PGP Key ID is 0xBC238DE5

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