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AT&T LICENSES PATENTS TO PRACTICE PUBLIC-KEY CRYPTOGRAPHY

 AT&T LICENSES PATENTS TO PRACTICE PUBLIC-KEY CRYPTOGRAPHY
 GREENSBORO, N.C., and SUNNYVALE, Calif., Sept. 1 /PRNewswire/ -- Public Key Partners (PKP) and American Telephone and Telegraph Co. (AT&T) (NYSE: T) today announced that AT&T had acquired licenses from PKP to practice the art of public-key cryptography. The terms or financial value were not disclosed.
 AT&T, the largest telecommunications company in the United States, joins a list that includes IBM, Motorola, Digital Equipment, Northern Telecom and many other leading companies that have acquired patent licenses to practice the art of public-key cryptography, including a technique called Diffie-Hellman and the popular RSA technology.
 AT&T Secure Communications Systems will use public-key technology to provide an array of security services in its product offerings, which include devices for secure voice, data, fax, cellular and video communications. AT&T's license to the package of PKP patents will allow it to practice all forms of public-key, such as Diffie-Hellman, RSA and ElGamal techniques and their derivatives, such as the Commerce Department's recently proposed Digital Signature Standard, or DSS.
 "There are a number of powerful techniques that AT&T is now licensed to practice, particularly Diffie-Hellman, ElGamal and RSA," said Jim Bidzos, PKP president. "AT&T's licensing of this technology will ultimately benefit their broad customer base."
 "AT&T sees the need and the customer demand for digital security products. Licensing PKP's public-key patents allows us to provide security in our products on a world-wide basis," said Ed Hickey, AT&T Vice President, Secure Communications Systems.
 "We're pleased to add AT&T to our long list of licensees. The majority of the computer and telecommunications industry has recognized the need to license this technology in order to respond to market demand," said Robert Fougner, PKP's director of licensing.
 PUBLIC KEY PARTNERS
 Public Key Partners holds the exclusive licensing rights to the Stanford and MIT patents covering public-key cryptography, including the well-known Diffie-Hellman, ElGamal and RSA methods. The company promotes the use and standardization of public-key technology. Formed by RSA Data Security Inc. and CYLINK Corporation, PKP is located in Sunnyvale, California.
 AT&T SECURE COMMUNICATIONS SYSTEMS
 AT&T Secure Communications Systems provides secure products and secure systems engineering and integration services. Its customers around the world include the governments of the United States and other nations, financial institutions and multinational corporations. AT&T Secure Communications Systems is headquartered in Greensboro, North Carolina.
 -0- 9/1/92
 /CONTACT: David Arneke, AT&T Federal Systems, 919-279-7680, or Jim Bidzos, PKP, 415 595-8782/
 (T) CO: Public Key Partners; American Telephone and Telegraph Co. ST: California, North Carolina IN: TLS SU: PDT


CM -- CH007 -- 5510 09/01/92 14:49 EDT
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Publication:PR Newswire
Date:Sep 1, 1992
Words:444
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