LONDON – Cryptography Research Inc., the chip security company that is on its way to being acquired by Rambus Inc., has announced that fables chip company Broadcom Corp. has licensed its patents.
CRI (San Francisco) has a portfolio of more than 55 patents covering countermeasures to differential power analysis (DPA) attacks, with additional patent applications pending worldwide. A DPA attack is the statistical analysis of the power consumption a supposedly secure device during interrogations of the device to try and expose key information and other secrets. Countermeasures to DPA help protect tamper-resistant chips used in applications such as banking, pay television, mass transit, secure ID, and wireless telecommunications.
How much Broadcom (Irvine, Calif.) has paid was not disclosed.
"Protections against power analysis attacks are critical for tamper-resistant semiconductors. The DPA countermeasure license with Cryptography Research is an important ingredient in our efforts to provide our customers with strong security across our product lines," said Dan Marotta, executive vice president & general manager of Broadcom's broadband communications group.