Method and arrangement for generation of a secret session key

US7724905B2 · kind B2 · utility

Assignee

• Francotyp-Postalia GmbH · DE

Inventors

• Gerrit Bleumer · Schildow, DE
• Clemens Heinrich · Berlin, DE

Key dates

• Filing date: Jun 29, 2005
• Grant date: May 25, 2010
• Expiry date: Mar 25, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L9/0844
• WIPO field: Control
• WIPO sector: Instruments

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.