In the brave, new world of smart-card authentication, all you have to do is touch a device to authenticate yourself to make payments, phone calls, log into a computer, start your car, or open doors to restricted areas.

Gemalto, a Europe-based smart-card vendor, at the RSA Conference in San Francisco next week will show a live demonstration of this person-to-device direct connection that eliminates the need for a smart card and smart-card reader, or typing in passwords or security access codes. The so-called "eGo" technology, which was developed as part of the pan-European Cluster for Application and Technology Research in Europe on NanoElectronics program, uses a smart-card-like chip that can be embedded in a watch or other wearable device and uses the body itself to transmit wirelessly between the human and an object.

Xavier Larduinat, marketing communication manager for the chief innovation and technology office at Gemalto, says eGo uses the signal modulation of the skin to send information from the device -- which can be no farther than one-inch from the skin -- to the device to which it's authenticating and communicating. "It's like what we have today for the [touch screen] on the iPhone," he says.

The user has an eGo-equipped device on his or her person, either in a wallet, watch, jewelry, or other wearable item, and just touches the eGo-equipped secured door, mouse, or even a soda machine, and if he or she is authorized, gains access via an Ultra Wide Band transmitter. Once the user is 30 feet away, the wireless channel automatically disconnects and the keys clear. The technology was first shown in Paris last December.

At RSA, Gemalto will host a live demonstration of eGo, where a user wearing an eGo device around his neck will touch a mouse to log into his PC. "By touching the mouse, it grabs the information [from his eGo card] and passes the user name and password through his hand to the PC," Larduinat says.

Larduinat says eGo is the future of smart-card technology, and is more secure than Bluetooth because it's a one-to-one connection that requires close proximity. It comes with Java Card technology and secure remote management. "It's the future way of bringing digital rights to a digital device," he says.

The silicon chip inside the eGo device is personalized with the user's credentials and access rights, and could include banking information for payment purposes; the path between the devices is encrypted. Larduinat says the hope is to bring this technology to the consumer side, possibly for cars, appliances, and watches: "You could use your watch to pay" when you go shopping, he says. "You wouldn't need to sign" for a credit card scan, he says.

What if you lose your eGo device? It's basically worthless to anyone else because it requires a fingerprint scan to start the device, Larduinat says.

But eGo doesn't do much for a longer connection, like watching television. "If you are using it to watch TV and walk away more than 30 feet, it will switch off," L says. "It's for the temporary usage of something." Have a comment on this story? Please click "Add Your Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message.