context-aware & yet another service hiromitsu kato [email protected] systems development...

Context-Aware & Yet Another service

Hiromitsu [email protected]

Systems Development Lab.

Hitachi, Ltd.

UBICOMP2002W7: Security in Ubiquitous Computing

Copyright (C) 2002 Systems Development Laboratory, Hitachi, Ltd., All Rights Reserved. 2

Contents

Our Future Vision– Super Distribution and Coordination

System concept, AYA– Autonomous networking idea over Super Distributed

Objects– Town Management Application

Security Issues– Agility and Fragility– Direct access

Our attempts– Secure Tele-operation Protocol– Ongoing works– Demo video


Contents

Our Future Vision– Super Distribution and Coordination

System concept, AYA– Autonomous networking idea over Super Distributed Objects– Town Management Application




Future Vision

Super Distributed Intelligence Ubiquitous Networking

Industry-Virtual line: Line organization according to individual product

-Channel Assembly: Product customization in logistics

-Recycling: Classification based on specification and used history

Transportation-Smart ways: Roads memorizing accidents and advising safety drive

-Smart cars: Cars cooperatively driving with each other to reduce accidents and improve traffic speed and density

e-Life(Human Body)-Wearable Tools: Digital fabrics, computer ring, and other information tools receive various services such as safety, entertainment, business, etc.

-Silicon Surgeons: Robots travel through body and monitor the health problem.

Home/Office-Borderless operation: Appliances accessible from everywhere

-Cooperative energy saving: Appliances autonomously work together for peak power shift


Paradigm Shift

From “Resource-Centric” to “User-Centric”

Past Super DistributionSuper Distribution

Are the clients satisfied?

Please give me…

Servants for human and society.

Java

I like…

-Logic-aware-Resource centered

-Context-aware-Resource distributed

Resource


Contents

Our Future Vision– Super Distribution and Collaboration

Basic concept, AYA– Autonomous networking idea over Super Distributed

Objects– Town Management Application

Security Issues– Agility and Fragility– Direct Access



Basic Concept

AYA: context-Aware & Yet Another service

綾 (AYA): A twill weave, a fabric with a twill weave

Towards the woven and twilled intelligence system– The warp = Connection between

Information and physical presence– The woof = Link between physical

presences [Nishijin brocade]


Target Application

Town Management Support System– Goal:

Area value augmentation Creating a real-world portal site attracting many

people to come, by using IT

– Requirements Service is highly situation-dependent

– Various users, events, timing, devices, … Service consistency support …and more…


Contents


Basic concept, AYA– Autonomous networking idea over Super Distributed Objects– Town Management Application




Security Issue (1)

Easy come, easy go– Flexibility is likely to lead to fragility– The malicious user would easily realize the DoS

(Denial of Service) attack.– Even the normal users could interrupt the service

for another person.


Security Issue (2)

Ubiquitous direct access– The firewall cannot always be a premise in the ubi

comp environment.– Self-protection is needed. But, how?


Contents


Basic concept, AYA– Autonomous networking idea over Super Distributed Objects– Town Management Application

Security Issues– Agility and Fragility– Direct Access



Our first idea

Operation-Privilege (O.P.) Management– Remote Controller (RC) Metaphor– Device access is allowed after acquiring the RC.– Malicious access can be stopped by taking away

the RC.


Secure Tele-operation Protocol

Three-tier model approach– The secure procedure is arranged as the STP spec.

Ｐ

STP server

Remote Operator’s Terminal Operation target

UHA

UHA OHA

OHA

External system Internal system

O.P.

Remote Operator’s Terminal

Operation target

Requester ProviderMediator

(User-Hosting Agent) (Object-Hosting Agent)


Ongoing works

Three-tier model is a firewall approach. Not suitable for ubiquitous direct access environment.

Some ongoing works– Embedded STP

Each active device would have the STP server functions for self-protection.

– Adapter dispatch approach O.P. mgt. with secure manager and adapter dispatch

– Privacy policy handling O.P. transfer vs. Privacy transfer


Sample Application Scenario

Smart Town Navigation Demo [Video]

Station

TheaterShopping Mall

Home/Office


Standardization Activity

SDO SIG is organized in OMG– SDO = Super Distributed Objects– Members: U. of Tokyo, Hitachi SDL, FhG/FOCU

S, UC Irvine/NTT, … RFP had issued in Feb 2002

– “PIM and PSM for SDO”– For the unified management model for devices

and related software agents– First submission in Oct 2002

From tomorrow(!), it will be discussed in Helsinki…


Summary

Vision: Super Distributed World AYA: Enabling the surrounding embedded

systems to support for human life flexibly Security issues

– Fragility problem about ad-hoc systems– Ubiquitous direct access– …

Our trials– OP Mgt., STP, Adapter dispatch, Privacy, ...

Thank you

Q&A: I appreciate if you would speak slowly.

context-aware & yet another service hiromitsu kato [email protected] systems development...

Documents

systems development

ayaautonomous networking

coordinationsystem concept

peak power shiftcopyright

collaborationbasic concept

information tools

safety drivesmart cars

line organization