A team of engineers has developed a new ID solution that works with unique vibrations in our finger bones.Rutgers engineers have created VibWrite, a smart access system that senses finger vibrations to verify users. The firm says it can be used for a low-cost security system could eventually be used to gain access to homes, apartment buildings, cars, appliances – anything with a solid surface.”Everyone's finger bone structure is unique, and their fingers apply different pressures on surfaces, so sensors that detect subtle physiological and behavioral differences can identify and authenticate a person,” said Yingying (Jennifer) Chen, a professor in the Department of Electrical and Computer Engineering at Rutgers University-New Brunswick.Chen is senior author of a peer-reviewed paper on VibWrite that was published online today at the ACM Conference on Computer and Communications Security, a flagship annual event of the Association for Computing Machinery (ACM). The goal of VibWrite is to allow user verification when fingers touch any solid surface, the paper says. VibWrite integrates passcode, behavioral and physiological characteristics. It builds on a touch-sensing technique by using vibration signals. It's different than traditional, password-based approaches, which validate passwords instead of legitimate users, as well as behavioral biometrics-based solutions, which typically involve touch screens, fingerprint readers or other costly hardware and lead to privacy concerns and “smudge attacks” that trace oily residues on surfaces from fingers.”Smart access systems that use fingerprinting and iris-recognition are very secure, but they're probably more than 10 times as expensive as our VibWrite system, especially when you want to widely deploy them,” said Chen, who works in the School of Engineering and is a member of the Wireless Information Network Laboratory (WINLAB) at Rutgers University-New Brunswick.During two trials, VibWrite verified legitimate users with more than 95 percent accuracy and the false positive rate was less than 3 percent. But the current VibWrite system needs improvements because users may need a few attempts to pass the system. To improve performance, the Rutgers-led team will deploy multiple sensor pairs, refine the hardware and upgrade authentication algorithms. They also need to further test the system outdoors to account for varying temperatures, humidity, winds, wetness, dust, dirt and other conditions.

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