LONDON – Security R&D and licensing company Cryptography Research Inc. (CRI) has agreed a deal with Discretix Technologies Ltd. allowing Discretix to develop products incorporating differential power analysis (DPA) countermeasures for use by CRI's licensees.
CRI (San Francisco, Calif.) is a subsidiary of Rambus Inc. (Santa Clara, Calif.) Disretix (Kfar Netter, Israel), founded in 2000 and still venture capital backed and privately held, is a leading supplier of security technology and digital rights management (DRM) for mobile applications.
"Discretix CryptoCell with DPA countermeasures is a certification-ready semiconductor IP platform for the Secure Element market. The CryptoCell platform, combining hardware and software, includes all the security features and modules required for embedded security subsystems in semiconductor ICs," said Asaf Shen, vice president of marketing of IP products of Discretix, in a statement issued by CRI.
DPA is a form of attack that involves monitoring the fluctuating electrical power consumption of a target device and then using statistical methods to derive cryptographic keys and other secret information from that device. DPA countermeasures are important for securing mobile devices, bank cards, pay television systems, secure identity products, secure storage media, anti-tamper products, and other electronic systems and components. CRI has developed a portfolio of over 55 U.S. and international patents covering countermeasures to DPA attacks.
DPA attacks has been around for many years goafrit and countermeasure have been and are being developed by many companies around the world. One way to do it is to have an extra piece of circuitry that compensate any fluctuation of current during crypto ops so that power consumption remains more or less constant, rendering DPA useless. There are many other techniques (check out IEEEXplore for instance)
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