Trust me, I'm a machine

April 5, 2005

An EU computer science project hopes to make the uncertainty attached to the pervasive computing future a lot more secure through establishing trust.
Using the cost-benefit function at the heart of risk analysis, the IST programme-funded SECURE project developed software to integrate the very subjective, human concept of trust into computers, PDAs, mobile 'phones and other network devices.

Pervasive computing is a steadily emerging reality. Mobile phones and PDAs are becoming powerful computers in their own right, cars now routinely include telematics, which allows them to know where they are, for example. Now vending machines that accept payment from your mobile phone or PDA are in deployment. All of these devices will periodically connect to the network to perform transactions, whether it's information, services or purchases.

But as the network spreads and the devices that can access it multipy it is very difficult to maintain security. How do you know the person, or the machine, will not steal your personal information or that they will supply the goods, services or information you purchase?

"We've developed software that allows judgement based on establishing a value of trust and balancing that against the risk of abuse. We've mostly work on developing a system to stop spam, so the software would ask establish if the email is trustworthy. We also looked at using the service for an e-purse, an electronic purse for small transactions," says Vinny Cahill, coordinator of the SECURE project at Trinity College, Dublin.

The concept works like this: your PDA or mobile phone receives a query about your current location. First it establishes the identity of the request. Then your PDA or e-purse asks its trust calculator how trustworthy you are. The calculator bases this on previous experiences. If this is the first time, it will base it on your reputation or rating with others or, in the SECURE system, it can even delegate authority to another party.

Meanwhile the risk evaluator is calculating the cost of the transaction if your trust is abused. If the trust is greater than the risk, you PDA reveals your location. If it is unsure, it asks the user. This could be very helpful if you're near a store that's offering a discount on something you need.

The group says their software scheme can even work offline, the based on experience in similar situations.

SECURE developed their software in Java, which means it can work on almost any device.The project finished in December 2004, when it completed development of a software framework that can incoporated to various applications.

"Trust is emerging as a viable method for creating and using ad hoc networks and we'd like to take it further, but it will be another two or three years before it could be deployed in a commercial application," says Prof. Cahill.

Source: IST Results

Explore further: 3D acquisition of forensic evidence presents crime scene analysts with new perspectives

Related Stories

New privacy app takes a page from NSA technology

June 1, 2015

Before the National Security Agency began complaining about being shut out of encrypted devices, it helped develop software for secure communications that could be adapted by the private sector.

China firm seeks $100 bn from Qualcomm

March 17, 2015

A Chinese semiconductor company will seek a $100 billion penalty against Qualcomm for trademark infringement, it said Tuesday—almost as much as the US mobile chip titan's entire market capitalisation.

Recommended for you

Short wavelength plasmons observed in nanotubes

July 28, 2015

The term "plasmons" might sound like something from the soon-to-be-released new Star Wars movie, but the effects of plasmons have been known about for centuries. Plasmons are collective oscillations of conduction electrons ...

New chemistry makes strong bonds weak

July 28, 2015

Researchers at Princeton have developed a new chemical reaction that breaks the strongest bond in a molecule instead of the weakest, completely reversing the norm for reactions in which bonds are evenly split to form reactive ...

'Expansion entropy': A new litmus test for chaos?

July 28, 2015

Can the flap of a butterfly's wings in Brazil set off a tornado in Texas? This intriguing hypothetical scenario, commonly called "the butterfly effect," has come to embody the popular conception of a chaotic system, in which ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.