Patent ID: 7133525
Filing Date: 2006-11-07
Classification: H04N

Abstract:
1. A method of updating a one-time-pad (OTP) comprising the steps of: a) assigning a current OTP to an encryption site, b) assigning a copy of said current OTP to a decryption site, c) providing said encryption site and said decryption site each with an identical secure compendium consisting of a set of byte modifying instructions, each of said byte modifying instructions identified by a separate, unique ID symbol, d) said method further comprising at said encryption site, ii) selecting the subset of byte modifying instructions from said compendium in accordance with said list of ID's of said subset, iii) processing said current OTP in accordance with said subset of byte modifying instructions to obtain an updated, new OTP, iv) XORing said list of ID's of said subset of byte modifying instructions with said current OTP, to provide an encrypted list, v) transferring said encrypted list from said encryption site to said decryption site, e) said method further comprising at said decryption site,