[jdev] How can I reduce the (duplicated) stanzas sent?

[Matthias Wimmer]

Norman Rasmussen writes:
>> 1.< version> and <stream>
>> 2. <iq to address> and <username>
>> 3. as above with <resource> and <digest>
>> ....
>> Other stanzas 
>> 
>> My questions are why is stanza #3 sent in addition to #2? Can this
>> <resource> and <digest> information be included in previous stanza via
>> standard configuration options?
> 
> SASL requires that the server sends the client a challenge first, if
> you wanted to avoid the round trip you could change to non-sasl and
> lose security.

What has been described was non-sasl authentication. The difference between 
2 and 3 is, that in 2 the client askes the server which non-sasl 
authentication mechanisms are available (Jabber had plain, digest and 0k 
mechanism prior to SASL), and 3 is the actual authentication. 

Some clients skip 2, but that's against the protocol and I would not 
recommend this. 


Matthias