[TSP] Socket Based Protocol rationale

[tho <thomas.fossati@xxxxxx>]

I don't understand the rationale for the Socket Based Protocol,

rfc3161 says:

"If a number of TSA response messages are to be produced for a given
 request (say if a receipt must be sent before the actual token can be
 produced) then a new polling reference is also returned."

Can someone please try to illustrate a concrete such case, and specifically
what is the difference between the DER-encoded TSA message in finalMsgRep
and the one in partialMsgRep (if any) ?


Thomas