Patent · US Active

Method and apparatus for dynamic generation of symmetric encryption keys and exchange of dynamic symmetric key infrastructure

US7688975B2 · kind B2 · utility

13Cited by

8References

9Claims

0Family size

Assignee

Authenex, Inc. · US

Inventors

Paul Lin · Fremont, US
Henry Hon · Berkeley, US

Key dates

Filing date	Oct 25, 2002
Grant date	Mar 30, 2010
Priority date	—
Expiry date	Mar 8, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/0877
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method and apparatus for dynamically generating data encryption keys for encrypting data files and for decrypting encrypted data files via a key exchange method is provided. A dynamically generated an encryption key is generated for each encryption event, so that the key cannot be produced or reproduced. A key exchange component of the invention ensures that only an intended recipient has the means to decrypt a file encrypted with the dynamically generated symmetric encryption keys.

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