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.

Date of Patent:
Mar. 05, 2013

Filed:

May. 27, 2009
Applicant:

Mark John Karol, Fair Haven, NJ (US);

Inventor:

Mark John Karol, Fair Haven, NJ (US);

Assignee:

Avaya Inc., Basking Ridge, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/00 (2006.01); H04K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-stage technique of establishing a plurality of secure strings of symbols is disclosed. In the first stage, the illustrative embodiment establishes a first-stage string of symbols with each other node. The first-stage strings are chosen from a first, small, key space, which means that they can be established more quickly than a highly secure key from a large key space. The advantage of the first-stage strings is that it enables the user to transmit secure messages more quickly than messages secured with highly secure strings. The disadvantage of the illustrative embodiment is that the first-stage strings are not as secure as strings from a larger key space. This disadvantage is mitigated, however, by the fact that the first-stage strings are only used for a short amount of time—until the second-stage strings are established in the second stage.


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