GSSAPI x Kerberos

[Douglas E. Engert]

Silvio Fonseca wrote:
> 
> Citando Sam Hartman <hartmans at mit.edu>:
> 
> >>> I have an application that uses HTTP (or HTTPS) to communicate
> >>> between the server and the clients and neither are browsers or
> >>> web servers...
> >Douglas> Another option is that OpenSSL can encapsulate Kerberos
> >Douglas> tickets in what SSL thinks are certificates.
> >Please don't do this is you can avoid it.  Use either the Mozilla or
> >the Microsoft style GSSAPI, or better yet don't use HTTP at all if you
> >don't expect your application to be used by normal web browsers.
> 
> I can avoid it... As I told Douglas, I have control over server and client
> code, so is up to me to decide what I want... The lead developer idea was to
> use the Microsoft implementation using the "WWW-Authenticate: Negotiate" tag,
> but it's more likely that I'll use the Mozilla implementation (using GSS-
> Negotiate in the tag and pure GSS code encoded in base64) only and later change
> to SPNEGO, from what I readed in SPNEGO RFC and Microsoft Implementation, will
> be simple...
> 
> >There are some significant issues with RFC 2712 (Kerberos inside TLS)
> >and even more significant issues with the OpenSSL implementation of
> >that spec.
> 
> There's (besides kx509) any implementation of this? Just to know, what issues??


kx509 is not an implementatrion of this at all. It in effect issues a x509 certificate
and key which any browser can use. Kerberos is used to authenticate to the kca once a day
or so to get a new certificate. The certificate is stored in the MS cert cache and looks
 just like any other certificate, except it has a short lifetime. Netscape can access 
the certificate and key via a PKCS11 plugin.   

> 
> --
> Silvio Fonseca
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-- 

 Douglas E. Engert  <DEEngert at anl.gov>
 Argonne National Laboratory
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