FOAFRealm/D-FOAF/ETIPresentation

From Corrib Clan Wiki

Presentation for ETI and DERI

D-FOAF
Distributed user profiles management based on FOAF metadata

Contents 1 Overview 2 FOAFRealm and D-Foaf basic concepts 3 FOAFRealm and D-Foaf basic concepts 4 HyperCuP key features 5 HyperCuP key broadcast 6 User profiles management 7 Single registration 8 Single sign-on 9 Benefits of P2P 10 Security 11 D-FOAF Project 12 D-FOAF Project - research 13 D-FOAF Project - implementation 14 D-FOAF Project - implementation 15 D-FOAF Project - documentation 16 D-FOAF Project

Overview

• FOAFRealm and D-FOAF basic concepts
• User profiles mangement
• Single registration and single sign-on
• Benefits of Peer-to-Peer architecture
• Security issues
• Possible applications
• D-FOAF Project overview

FOAFRealm and D-Foaf basic concepts

• FOAF (Friend-of-a-Friend) makes use of RDF to describe people and relations between them
• FOAFRealm uses such relations to authorize users
• FOAFRealm enables people to share resources on a basis of level of friendship

FOAFRealm and D-Foaf basic concepts

• D-Foaf works in truly distributed environment
• Not only resources but also user profiles are placed all over the network
• D-Foaf gives solutions for managing fragile user private profiles and resources

HyperCuP key features

• Shortest path between two most distant nodes=logbN
• Vertex symetry
• Self-healing abilities
• Recursive decomposition

HyperCuP key broadcast

User profiles management

• User's profile is stored on his home server
• P2P is used to locate the home server
• User controls his personal information
• User decides what is shown where

Single registration

• Fill the forms only ones
• No redundancy means integrity
• No more user/password/site triples to remember

Single sign-on

• Supply credentials only ones
• Easily explore multiple services
• P2P propagates authentication information
• 

Benefits of P2P

• Scalability (HyperCup)
• Flexibility
• No single point of failure
• Overload happens less likely

Security

• Two aspects:
  • internals of P2P
  • users authentication
• Ballance security and ease of use
• Privacy

D-FOAF Project

• Project is open-source
• Mainly research project
• Beside the implementation we work on:
  • publication
  • analysis

D-FOAF Project - research

• Article for TEHOSS Conferency
  

 D-FOAF - Security Aspects in Distributed User Management System

• Other analysis and papers:
  • Security Risk
  • Sesame system analysis
  • HyperCuP - State of Art, implementation analysys
  • HyperCuP - Web-Services Wrapper

D-FOAF Project - implementation

• Most work in bottom layer
• Sesame system wrapper
• Change Jena framework into Sesame in FOAFManage module
• Filmik: Media:prezentacja.zip

D-FOAF Project - implementation

• Hyper Cup - extending with web services
• Most work in communication layer
• Wraping objects into xml format
• Unwraping objects from xml format

D-FOAF Project - documentation

• All the project documentation is created collaborative on wiki pages
• There is also a place for short notes, reports, ect.

D-FOAF Project

• Other tools that are used in the project and and helps integrate the project:
  • • mailing-lists, instant-messangers (skype, gg), net-office, Jira, CVS repository.