Method and apparatus for performing secure communications

Details Method and apparatus for performing secure communications Method and apparatus for performing secure communications

2006-09-26

2006-09-26

Smithers, Matthew (Department: 2137)

Cryptography

Key management

Key distribution

C380S255000, C380S277000, C455S410000

Reexamination Certificate

active

07113601

ABSTRACT:
A method for enabling secure communication over a network is described. This method employs a public/private key encryption/decryption algorithm through a secure communication device. The communication device is designated as capable of secure communication when it is equipped with the necessary electronics to perform the encryption and decryption, as one embodiment is described herein. The encryption/decryption method utilized by embodiments of the invention can be incorporated into the modification of, conventional communication terminals such as a telephone. Such modifications are comprised of, but not limited to, the addition of components (refer toFIG. 1) capable of converting voice signals to digital signals and vice versa. The communication terminal may also include, for example, a specially designed ASIC processor and/or software configured to encrypt and decrypt data. In one embodiment of the invention measures are taken to limit accessibility to the keys utilized to perform encryption/decryption.

REFERENCES:
patent: 6598164 (2003-07-01), Shepard
patent: 2001/0050990 (2001-12-01), Sudia
PGPfone—Pretty Good Privacy Phone [online], [retrived on Feb. 11, 2002]. Retrieved from the Internet: <URL: http://www.pgpi.org/products/pgpfone/>.
Application-Specific Integrated Circuit—A Whatis Definition—See also: ASCI [online], [retrieved on Feb. 11, 2002]. Retrived from the Internet: <URL: http://whatis.techtarget.com/definition/0..sid—9—gci213785,00.html>.
Philip R. Zimmermann, PGPfone Pretty Good Privacy Phone, Jul. 8, 1996, 81 pages, Owner's Manual, Version 1.0 beta 7.
Bruce Schneier, Applied Cryptography: Protocols, Algorithms, and Source Code in C, Second Edition, 1996, 758 pages, John Wiley & Sons, Inc.
RSA Laboratories, Cryptography FAQ, What is the RSA cryptosystem?, 1 page http://www.rsasecurity.com/rsalabs/faq/3-1-1.html, Apr. 12, 2001.
Oli Cooper: An introduction to modern cryptography, 17 pages, http://www.cs.bris.ac.uk/˜cooper/Cryptography/crypto.html, last updated Feb. 22, 2001.

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