Patent · US Active

Methods for the generation of identical symmetrical cryptographic keys

US8363838B2 · kind B2 · utility

0Cited by

7References

15Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Daniel Bichler · Munich, DE
Guido Stromberg · Birkenfeld, DE
Manuel Loew · Munich, DE
Daniel Barisic · Dortmund, DE
Martin Krogmann · Munich, DE
Thomas Lentsch · Graz, AT

Key dates

Filing date	Feb 14, 2008
Grant date	Jan 29, 2013
Priority date	—
Expiry date	Aug 14, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/805
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and algorithms for generating identical symmetrical cryptographic keys. In a method for generating a symmetrical cryptographic key, a first profile is generated, the first profile comprising a series of data points collected over a first period of time. A start time of the first profile is identified and the first profile divided into a sequence of time-based segments, each time-based segment comprising at least one data point. A first symmetrical cryptographic key is calculated from the sequence of time-based segments, and the first symmetrical cryptographic key is stored for at least one of encrypting and decrypting data in cooperation with a second symmetrical cryptographic key substantially identical to the first symmetrical cryptographic key.

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