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:
May. 25, 2010
Filed:
Jun. 29, 2005
Gerrit Bleumer, Schildow, DE;
Clemens Heinrich, Berlin, DE;
Gerrit Bleumer, Schildow, DE;
Clemens Heinrich, Berlin, DE;
Francotyp-Postalia GmbH, , DE;
Abstract
In a method for generation of a secret session key for cryptographically securing a communication channel between a first communication partner and a second communication partner, the first communication partner generates at least one first key parameter, receives at least one second key parameter generated by the second communication partner, and generates the secret session key using the first key parameter and the second key parameter. The first communication partner generates, stores and communicates to the second communication partner a first random number, receives from the second communication partner a sent-back random number, compares the sent-back random number with the stored random number, and releases the generated secret session key for use given the presence of a predeterminable correlation between the sent-back first random number and the stored random number.