Cryptography – Communication system using cryptography
Reexamination Certificate
2008-12-29
2011-11-01
Chea, Philip (Department: 2492)
Cryptography
Communication system using cryptography
C380S268000, C380S028000
Reexamination Certificate
active
08050404
ABSTRACT:
A system, method, and network interface obscures the existence of data encryption in a communication network is provided. A set of characters is generated by using a set of encryption keys as an input to a pseudo-random function. Each character corresponds to an index value. The encrypted data is divided into a plurality of parts. Each part is sectioned into a plurality of groups. Each group of the plurality of groups is encoded by mapping the group to a character in the set of characters according to its corresponding index value. The mapped characters are transmitted through the communication network.
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International Search Report and Written Opinion dated Mar. 9, 2010 for International Application No. PCT/CA2009/001763, International Filing Date Dec. 3, 2009 consisting of 11 pages.
Chea Philip
Christopher & Weisberg P.A.
Nortel Networks Limited
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