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:
Oct. 17, 2017

Filed:

Jun. 29, 2015
Applicants:

Robert a Johnson, Malvern, PA (US);

Sarah K Inforzato, Malvern, PA (US);

Inventors:

Robert A Johnson, Malvern, PA (US);

Sarah K Inforzato, Malvern, PA (US);

Assignee:

Unisys Corporation, Blue Bell, PA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0485 (2013.01); H04L 12/4633 (2013.01); H04L 63/0272 (2013.01); H04L 63/061 (2013.01); H04L 63/0853 (2013.01); H04L 63/102 (2013.01); H04L 63/164 (2013.01);
Abstract

A method of managing secure communications states in an endpoint within a secure network is disclosed. The method includes, in a disconnected state, transmitting from a first endpoint to a second endpoint a first message including an authorization token. The method further includes, in the pending state, receiving from the second endpoint a second message including a second authorization token at the first endpoint. The method includes, based on the receipt of the second message, entering an open state and initializing a tunnel between the first and second endpoints using an IPsec-based secured connection. The method also includes, upon termination of the tunnel due to a termination or timeout message issued by at least one of the first and second endpoints, entering a closed state.


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