The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2013
Filed:
Feb. 14, 2008
Daniel Bichler, Munich, DE;
Guido Stromberg, Munich, DE;
Manuel Loew, Munich, DE;
Daniel Barisic, Dortmund, DE;
Martin Krogmann, Munich, DE;
Thomas Lentsch, Graz, AT;
Daniel Bichler, Munich, DE;
Guido Stromberg, Munich, DE;
Manuel Loew, Munich, DE;
Daniel Barisic, Dortmund, DE;
Martin Krogmann, Munich, DE;
Thomas Lentsch, Graz, AT;
Infineon Technologies AG, Neubiberg, DE;
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.