Method and system for encryption and authentication

Details Method and system for encryption and authentication Method and system for encryption and authentication

2011-01-04

2011-01-04

Zia, Syed A. (Department: 2431)

Cryptography

Key management

Having particular key generator

C380S044000, C380S283000, C380S278000, C380S277000, C713S168000

Reexamination Certificate

active

07864954

ABSTRACT:
A method and a system for encrypted transmission or authentication between at least two units via an insecure communication channel, comprising the steps of: (a) in an initiation procedure, producing a common original value to be used in the respective units; (b) synchronising a counting value in each unit; (c) generating a key on the basis of the original value and the counting value in each unit, independently of other units; and (d) using the thus generated key in a subsequent encrypted transmission or authentication operation.

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