vp - impp virtual presence cobrow instant message persistent presence klaus h. wolf cyland ag / ulm...
DESCRIPTION
VP-IMPP Function Users move through the web VP server computes virtual neighbors VP client displays neighborsTRANSCRIPT
VP - IMPPVirtual PresenceCoBrow
Instant MessagePersistent Presence
Klaus H. WolfCyland AG / Ulm [email protected]
VP-IMPP
Virtual Presence
• The Web seems to be lifeless
• But there are people
• VP makes people visible
• Meeting people on the Web
VP-IMPP
Function
• Users move through the web• VP server computes virtual neighbors• VP client displays neighbors
VP-IMPP
VP Display
• VP client displays peers
Welcome to www.full-volume.com!There are 13 users on these pages,take your time to check things out.
VP-IMPP
VP Infrastructure
• Client based VP clients supply information
• Server based Document servers supply
information Installation of VP components
• Network based ISP supplies VP data
VP-IMPP
Federated Servers
• VP to cover a large part of the Web• Multiple VP servers• Virtual Presence across server
borders
VP-IMPP
Persistent Presence
• Users want to know if you can be reached
o (active homepage example) know how to reach you tell how they want to be reached dynamically, automatically
VP-IMPP
Presence System• User Proxy
persistant access point hide details
PresenceSystemROW User
VP-IMPP
Presence Information
Caller
GET online-statefor kermit
is online forIM and telephone
im://aol.com/kermit
SEND IM tokermit
GET IM-address
IM service @ AOLIM
VP-IMPP
Presence Servers
frog.com
kermit.frog.com
aol.comim://aol.com/frog/kermit
im://frog.com/kermit
im://kermit.frog.com/
client-server
peer-peer
VP-IMPP
VP & PP
• VP client shows information on virtual neighbors
• PP client shows information on buddies
• Information bits: Name, icon Online status, contact address Location
• PP is a subset of VP
VP-IMPP
Notes on IMPP
• Technical discussion PIDF (XML or not) PITP (TCP vs. UDP, WAP) Addressing (URL vs. email) Substrate (SMTP, HTTP, SIP) Client-server vs. server backbone Authentication, spamming
• Missing working de-facto standard
VP-IMPP
IMPP status
• At least 2 months behind schedule• IMPP drafts out• Private proposals out• IETF put IMPP to sleep (dormant)
Slow progress Waiting for new ideas, new people Stepping back and re-thinking AD expect proposals by June 15
• Danger: IMPP Forum
VP-IMPP
Security
• Everymessage must be authenticated
• Public key authentication• PKIX (IETF) signature verification