Patent · US Active

Method and device for processing data

US8300811B2 · kind B2 · utility

13Cited by

1References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jean Georgiades · Birkenfeld, DE
Anton Kargl · Birkenfeld, DE
Bernd Meyer · Munich, DE

Key dates

Filing date	Dec 9, 2009
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Nov 26, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3066
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The embodiments provides a method for processing data. According to the invention, an elliptic curve with an order m which corresponds to a product of a first cofactor c and a prime number q is provided, wherein the order (q−1) of the multiplicative group of the prime number q corresponds to a product of a second cofactor I and at least two prime divisors s1, . . . , sk, wherein the at least two prime divisors s1, . . . , sk are each greater than a predetermined bound of 2n; and a chosen method is applied to provided data using the provided elliptic curve for providing cryptographically transformed data. The invention enables cryptographically transformed data to be provided while simultaneously minimizing the probability of a successful attack.

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