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:
Aug. 17, 2010

Filed:

Dec. 06, 2005
Applicants:

Christopher William Preist, Bristol, GB;

Javier Esplugas Cuadrado, Madrid las Rozas, ES;

Caroline Kudla, Bristol, GB;

David Trastour, Bristol, GB;

Inventors:

Christopher William Preist, Bristol, GB;

Javier Esplugas Cuadrado, Madrid las Rozas, ES;

Caroline Kudla, Bristol, GB;

David Trastour, Bristol, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of determining the compatibility of respective information associated with at least two parties is described. The method comprises: a first and second party each expressing their respective information in an agreed format; processing the information according to a two-phase double-encryption process, in which the first party encrypts their information under a personalized first-phase procedure and sends the results to the second party and the second party encrypts their information under a personalized first-phase procedure and sends the results to the first party, the second party encrypting the encrypted information received from the first party under a personalized second-phase procedure to produce a double-encrypted result and the first party encrypting the encrypted information received from the second party under a personalized second-phase procedure to produce a double-encrypted result, the first- and second-phase procedures being chosen such that a given element of information will always yield the same unique double-encrypted result regardless of which party it originates from; and comparing each party's double-encrypted information to determine the compatibility of the information of each party.


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