Featured Research

from universities, journals, and other organizations

Secure updates for navigation systems

Date:
October 10, 2011
Source:
Fraunhofer-Gesellschaft
Summary:
At the push of a button by the driver, control units download the car manufacturer's new software -- such as enhanced map material for the navigation system. To ensure that this data channel is protected from hacker attack, the system needs the right cryptographic key. To date, these keys have been stored in each one of a vehicle's electronic control units. Thanks to a new form of trust anchor, this will be simpler and more economical in the future.

At the push of a button by the driver, control units download the car manufacturer‘s new software – such as enhanced map material for the navigation system. To ensure that this data channel is protected from hacker attack, the system needs the right cryptographic key. To date, these keys have been stored in each one of a vehicle‘s electronic control units. Thanks to a new form of trust anchor, this will be simpler and more economical in the future.

Related Articles


Researchers will present this process at it-sa, the IT security trade fair held Oct. 11-13 in Nuremberg.

Imagine you live in Germany and want to take a few days of vacation in the French Alps. You have booked a hotel. To find it without having to thumb through road maps in hard copy, the navigation system must be retrofitted with French maps. To accomplish this, you either have to take a trip to the garage before setting out on the long journey, or you must obtain a CD with the appropriate data. The navigation system of the future however will download updates by itself at the driver‘s instruction. If the driver launches the program, the system returns numerous security questions – this is the only way to protect data transfer from hackers. Up until now, manufacturers have stored cryptographic keys on every device that is to download such manufacturer updates or communicate with other control units. If a device requests an update, first it must use the right key to prove that it is entitled to receive one.

This is just one example of an application in which cryptography plays a decisive role in providing in-car protection. It is also the reason carmakers need to safely store numerous cryptographic keys in a vehicle‘s electronic control units. Researchers at the Fraunhofer Research Institution for Applied and Integrated Security AISEC in Garching near Munich have come up with a secure but economical method that accomplishes this. "We have developed a trust anchor – a device that securely stores cryptographic keys. Control units can use these keys, whether to request manufacturer updates or to communicate with one another," explains Alexander Kiening, a researcher at AISEC. But how does the process work? If a driver wants new map material for his or her navigation system, for instance, the system retrieves the key it needs from the central trust anchor. To do so, first it has to authenticate itself by demonstrating that the request really is coming from the navigation system; then it must prove that it has not been manipulated. To accomplish this, the trust anchor checks whether the software in the device matches the valid version. If this query is successful, the navigation system receives the key it can then use to establish a secure virtual private network data channel (VPN for short) to the manufacturer. It then downloads the desired software through this channel. Once this is complete, the updated device informs the trust anchor of a successful modification to the software.

The project is part of the group research project "Security in Embedded IP-based Systems (SEIS)" initiated by the German Federal Ministry of Education and Research (BMBF). Researchers have already developed a first demonstrator model in collaboration with Infineon, Continental and the Fraunhofer Research Institution for
Communication Systems ESK.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Secure updates for navigation systems." ScienceDaily. ScienceDaily, 10 October 2011. <www.sciencedaily.com/releases/2011/10/111005110229.htm>.
Fraunhofer-Gesellschaft. (2011, October 10). Secure updates for navigation systems. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2011/10/111005110229.htm
Fraunhofer-Gesellschaft. "Secure updates for navigation systems." ScienceDaily. www.sciencedaily.com/releases/2011/10/111005110229.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Newsy (Nov. 23, 2014) Microsoft has robotic security guards working at its Silicon Valley Campus. Video provided by Newsy
Powered by NewsLook.com
Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

AFP (Nov. 21, 2014) Toyota presented its hydrogen fuel-cell compact car called "Mirai" to US consumers at the Los Angeles auto show. The car should go on sale in 2015 for around $60.000. It combines stored hydrogen with oxygen to generate its own power. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Google Announces Improvements To Balloon-Borne Wi-Fi Project

Google Announces Improvements To Balloon-Borne Wi-Fi Project

Newsy (Nov. 21, 2014) In a blog post, Google said its balloons have traveled 3 million kilometers since the start of Project Loon. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins