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Sci - Tech

Soon, smartphone app that can open doors

Saturday - Jan 05, 2013, 01:05am (GMT+5.5)
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Washington - Researchers have developed a piece of software that will make the technology even more secure and versatile.
Smartphones and tablets have become an integral part of our daily lives. The capabilities of these handily sized mini-computers seem almost boundless as we phone friends, shoot holiday snaps, lose ourselves in a new music download or access the internet to obtain the boarding card for our next flight in comfort.

Does it not seem logical, then, that we should make use of these constant companions as the key to our cars, front doors or lockers as well?

A few such solutions are already available, but what’s still missing is widespread market acceptance.

Researchers from the Fraunhofer Institute for Secure Information Technology SIT in Darmstadt will be demonstrating their ShareKey software, a solution which will make the key app concept even more versatile and secure.

“In essence, ShareKey offers two new functions: users can issue digital keys remotely and assign these keys certain user permissions. For instance, I can grant the building superintendent access to my apartment for a short period so that he can open the door for the gas meter to be read while I’m at work,” Alexandra Dmitrienko from the SIT said.

“The solution is built around modern security technologies and can be easily integrated into existing access control systems,” she said.

ShareKey sends electronic keys directly to the user’s mobile phone, in the form of a QR code attached to an e-mail or MMS.

One thing that Dmitrienko and her team will also be demonstrating at CeBIT (Hall 9, Booth E08) is a parcel station where access rights to individual compartments are issued using ShareKey.

“Recently, users of parcel stations have fallen victim to phishing attacks. Equally, hackers continue to target their efforts on smartphones. In light of this, the big challenge was to protect the electronic keys without compromising the intuitive operation of such devices,” Dmitrienko said.

ShareKey works using the Near Field Communication (NFC) transmission standard, which allows data to be exchanged wirelessly over short ranges of up to a few centimetres.

“To open a door, all you need to do is hold your mobile phone close to the lock,” Dmitrienko said.

NFC interface and door locks only operate within a narrow bandwidth and have limited computing power. Consequently, scientists at the SIT have equipped ShareKey with particularly resource-efficient communication protocols. Further, electronic keys are reliably protected on the smartphone from malware and unauthorized access.

This is achieved by leveraging advanced technologies which keep sensitive data on the smartphone separate from other data and apps lik Fraunhofer’s BizzTrust.

Communication between the mobile phone and a central server is protected by established security protocols.

“And even if this communication is hacked into, it’s impossible for unauthorized people to gain access to the digital key. This is because opening the door requires information contained both in the encrypted token sent to the user and in the app installed on their smartphone,” Dmitrienko said.

Alongside front doors and parcel or locker compartments, the research scientist also suggests that the technology could potentially be applied to help administer keys in hotels or as part of car-sharing schemes.

“The trend towards a ‘shareconomy’ will benefit the further development of this technology,” Dmitrienko added.

The findings will be presented at the CeBIT trade fair in Hannover.


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