Rambus also today announced the closing of its acquisition of Cryptography Research, a semiconductor security R&D and licensing company. The acquisition expands the breadth of Rambus technologies available for licensing with patented solutions for content protection, network security, anti-counterfeiting and financial services. Nearly all of CRIs employees have joined Rambus following the close of the acquisition and will continue operations at CRIs San Francisco, CA office. Rambus announced the definitive agreement to acquire CRI on May 12, 2011.
Key technologies developed by CRI include differential power analysis (DPA) countermeasures. DPA attacks involve monitoring the fluctuating electrical power consumption of a target device and then using advanced statistical methods to derive cryptographic keys and other secrets. With CRIs DPA countermeasures, electronic systems and security devices, such as smart cards, are protected from DPA attacks.
In addition, CRI offers anti-piracy and anti-counterfeiting solutions including CryptoFirewall technology. The CryptoFirewall core is a separate, on-chip, hardware-based security block that protects cryptographic keys and computations from attack. CryptoFirewall solutions can be used across a broad spectrum of applications including Pay TV security and counterfeit protection of products such as printer consumables.
The acquisition of CRI is for $167.5 million in cash, approximately 6.4 million newly issued shares of Rambus stock, and $50 million payable to CRI employees in cash or stock over three years.