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:
Feb. 28, 2012

Filed:

Sep. 28, 2006
Applicants:

Wael M. Ibrahim, Houston, TX (US);

Lan Wang, Houston, TX (US);

Jennifer E. Rios, Houston, TX (US);

Valluddin Y. Ali, Houston, TX (US);

Manuel Novoa, Houston, TX (US);

Inventors:

Wael M. Ibrahim, Houston, TX (US);

Lan Wang, Houston, TX (US);

Jennifer E. Rios, Houston, TX (US);

Valluddin Y. Ali, Houston, TX (US);

Manuel Novoa, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system comprises a first operating environment and a second operating environment. The first and second operating environments exchange information in encrypted form using a shared encryption key (K). The first and second operating environments cooperate to change the encryption key Kusing another shared encryption key (K). The encryption key Kis changed upon the encryption key Kbeing changed.


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