Patent · US Active

Data transformation system using cyclic groups

US8553878B2 · kind B2 · utility

2Cited by

2References

23Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Augustin J. Farrugia · Cupertino, US
Mathieu Ciet · Paris, FR
Benoit Chevallier-Mames · Paris, FR

Key dates

Filing date	Apr 14, 2010
Grant date	Oct 8, 2013
Priority date	—
Expiry date	Nov 29, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/16
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An asymmetric (dual key) data obfuscation process, based on the well known ElGamal cryptosystem algorithm, and which uses multiplicative cyclic groups to transform (obfuscate) digital data for security purposes. In the present system the data need not be a member of the cyclic group, unlike in the ElGamal cryptosystem algorithm. Also, any one of several additional mathematical data transformations are further applied to the transformed data, thereby enhancing security of the transformed data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.