SchlumbergerSema, a business unit of Schlumberger Limited, and Domain Dynamics Limited, the UK voice and signal specialist, announced a security breakthrough for mobile phones which safeguards access to handsets by means of voice authentication. This new system runs on a SIM (subscriber identity module) card and requires no additional hardware, making it cost-effective and simple to introduce.
The technology ensures that only legitimate users can access a phone by using a locking mechanism, which operates in the familiar fashion of a PIN code. Authentication simply requires the user to speak a phrase or word as the phone is switched on, which is compared in real-time with a reference voiceprint stored inside the tamper-proof SIM card’s memory.
Voice authentication is the most natural method of introducing state-of-the-art security into the mobile phone marketplace,” said Jorgen Rasmussen, president, Cards at SchlumbergerSema. “By basing the solution on the standardized SIM platform, it becomes cost-effective and simple, providing a highly flexible mechanism for operators to address the widespread public concern over privacy and security.”
The new system has been developed through a partnership between SchlumbergerSema, which provides the SIM ToolKit applet, Domain Dynamics Ltd, which provides the voice authentication algorithm, and Mitsubishi Electric Telecom, which has implemented the technology on the Trium Mondo GSM/GPRS PDA phone.
The system is provided as a SIM ToolKit applet, which may be loaded onto any standard Java Card(TM) SIM. Leveraging the unique nature of the signal processing algorithm designed by Domain Dynamics Ltd, and the lean nature of the man-machine interface program, the applet is extremely small — requiring just 2.5 Kbytes of memory in total.
SchlumbergerSema ([www.slb.com]) is a leading information technology services company providing consulting, systems integration, managed services, and products to the telecommunications, energy and utilities, finance, transport, and public sector markets. Domain Dynamics Ltd ([www.ddl.co.uk]) the voice and signal specialist provides powerful, compact and cost-efficient solutions for word recognition, voice authentication biometrics, signal processing, and machinery condition monitoring and is focusing primarily on solutions to applications in noisy or restricted environments. Java Card is a trademark of Sun Microsystems.