Patent · US Active

Cryptographic method with elliptical curves

US8582761B2 · kind B2 · utility

1Cited by

7References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

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

Key dates

Filing date	Mar 6, 2007
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Dec 31, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F2207/7219
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method determines an elliptical curve, suitable for a cryptographic method. An elliptical curve to be tested is prepared. The order of a twisted elliptical curve associated with the elliptical curve to be tested is determined. It is automatically checked whether the order of the twisted elliptical curve is a strong prime number. If the order of the twisted elliptical curve is a strong prime number, the elliptical curve to be tested is selected as an elliptical curve suitable for cryptographical methods.

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