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:
Oct. 25, 2016
Filed:
May. 18, 2012
Edmund Colby Munger, Crownsville, MD (US);
Vincent J. Sabio, Columbia, MD (US);
Robert Dunham Short, Iii, Leesburg, VA (US);
Virgil D. Gligor, Chevy Chase, MD (US);
Douglas Charles Schmidt, Severna Park, MD (US);
Edmund Colby Munger, Crownsville, MD (US);
Vincent J. Sabio, Columbia, MD (US);
Robert Dunham Short, III, Leesburg, VA (US);
Virgil D. Gligor, Chevy Chase, MD (US);
Douglas Charles Schmidt, Severna Park, MD (US);
VIRNETZ, INC., Zephyr Cove, NV (US);
Abstract
A plurality of computer nodes communicates using seemingly random IP source and destination addresses and (optionally) a seemingly random discriminator field. Data packets matching criteria defined by a moving window of valid addresses are accepted for further processing, while those that do not meet the criteria are rejected. In addition to 'hopping' of IP addresses and discriminator fields, hardware addresses such as Media Access Control addresses can be hopped. The hopped addresses are generated by random number generators having non-repeating sequence lengths that are easily determined a-priori, which can quickly jump ahead in sequence by an arbitrary number of random steps and which have the property that future random numbers are difficult to guess without knowing the random number generator's parameters. Synchronization techniques can be used to re-establish synchronization between sending and receiving nodes.