Thank you, Castillo. Sorry, I did not explain enough.
I mean below: Reading RFC2617, I think below: In SIP, UAC -- P1 -- P2 --...--Pn--UAS If any Proxy(i.e.Px) hope that it would send back 407 to UAC, the Px MUST have already exchanged a shared secret key with UAC before. Am I right? 2010/2/11 Iñaki Baz Castillo <[email protected]>: > El Jueves, 11 de Febrero de 2010, Couret Tabt escribió: >> Dear folks, >> >> I am a beginner and so I might post trivial questions. >> Then I am sorry. >> I have great appreciation for your usual kind help. >> Thank you. >> >> By the way, >> for Proxy Authenticate in RFC3261, >> do a UAC and a Proxy, in advance, have to exchange a shared secret key >> each other? >> In other words, >> Can't the Proxy(that have NOT exchanged a shared secret key with a UAC yet >> ) authenticate the UAC(or send back 407)? >> >> Oppositely, >> Can any proxies that have already exchanged a shared secret key with a UAC >> authenticate the UAC(or send back 407)? > > Digest authentication is full explained in RFC 2617. > > -- > Iñaki Baz Castillo <[email protected]> > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
