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1. IN1845/CHENP/2007 - DATA PROCESSING SYSTEM AND METHOD

Office
India
Application Number 1845/CHENP/2007
Application Date 30.04.2007
Publication Number 1845/CHENP/2007
Publication Date 31.08.2007
Grant Number 262821
Grant Date 26.09.2014
Publication Kind B
IPC
G06F 17/30
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
30Information retrieval; Database structures therefor
Applicants KONINKLIJKE PHILIPS ELECTRONICS N.V.
Inventors KORST, Johannes, H. M.
DE JONG, Nicolas
VERSCHOOR, Michael, P. F.
Priority Data 0423879.6 28.10.2004 GB
Title
(EN) DATA PROCESSING SYSTEM AND METHOD
Abstract
(EN) In a system 300, a server 310 provides a cryptographic function F to an execution device in an obfuscated form. The function F composes output of a plurality of the mapping tables Ti (0< i< n; n>l) using an Abelian group operator x, A processor 312 chooses tables O and C such that C [x] x 0[x] = O, Vx ± Di and creates tables "T1 0< i