Cryptography Research

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Cryptography Research, Inc.
Company typePrivate subsidiary
Founded1995; 29 years ago (1995)
HeadquartersSan Francisco, California
Key people
Paul Kocher, President and Chief Scientist
ProductsTechnology licensing, secure semiconductors
Number of employees

Cryptography Research, Inc. is a San Francisco based cryptography company specializing in applied cryptographic engineering, including technologies for building tamper-resistant semiconductors. It was purchased on June 6, 2011 by Rambus for $342.5M.[1] The company licenses patents for protecting cryptographic devices against power analysis attacks.[2] The company's CryptoFirewall-brand ASIC cores are used in pay TV conditional access systems and anti-counterfeiting applications.[3] CRI also developed BD+, a security component in the Blu-ray disc format, and played a role in the format war between HD DVD and Blu-ray.[4][5] The company's services group assists with security testing, disaster recovery, and training.

Cryptography Research protects its core operations from outside attack by maintaining a secured local network that is not connected to the Internet at all. Employees who need to work with sensitive data have two computers on their desks — one to access the secure network, and a separate computer to access the Internet.[6]


  1. ^ "Rambus Buying Cryptography Research for $342.5 Million". 2011-05-12. Archived from the original on 2011-08-28. Retrieved 2012-06-16.
  2. ^ Ubhey, Anoop (November 23, 2004). "Interview with Cryptography Research Inc".
  3. ^ Fontanezza, Maria (October 2007). "Technology Battles Device Cloning - MD&DI". Archived from the original on 2009-02-07. Retrieved 2008-07-09.
  4. ^ Markoff, John (15 April 2003). "Plan Would Use Content, Not Devices, to Fight Piracy". The New York Times.
  5. ^ Singel, Ryan (February 28, 2008). "How Crypto Won the DVD War". WIRED. Wired Magazine.
  6. ^ "How one company stays safe with two networks", CNET News, March 30, 2010.

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