On Tue, 2005-01-18 at 11:34 -0600, Rohit Trehan wrote:
> Hi 
>  
> can anyone explain the significane of "nonce", "opaque" and "realm"

See RFC 2617 for the details, but briefly:

  realm

        Identifies the 'authentication domain'; think of it as where the
        credentials are valid.
        
  nonce (and cnonce)

        A value chosen by one party that the other could not have
        predicted.  This ensures that the 'response' hash sent as an
        authenticator cannot be precomputed or replayed.
        
  opaque

        Has no particular use - when the client receives it, it should
        send it back.  (It's not even very useful to the server, but the
        protocol requires it so just do it).

-- 
Scott Lawrence
Consulting Engineer
Pingtel Corp.
http://www.pingtel.com/
+1.781.938.5306 x162


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