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. 27, 2018

Filed:

Jul. 28, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Jan L. Camenisch, Thalwil, CH;

Maria Dubovitskaya, Zurich, CH;

Alfredo Rial Duran, Horgen, CH;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/08 (2013.01); H04L 9/3268 (2013.01);
Abstract

The invention relates to a computer-implemented method for handling revocation statuses of credentials, the method including: an issuing computer transmitting a public key to user and verifying computers, a revocation computer sending revocation parameters to user and verifying computer devices, issuing credentials to a user computer by an issuing computer, verifying issued credentials by the user computer, transmitting updated revocation information to the revocation computer by the verifying computer, updating provisional revocation status information by the revocation computer, updating revocation status information by the revocation computer, transmitting updated revocation information to a revocation computer by a verifying computer, updating provisional revocation status information by the revocation computer, transmitting updated revocation status information to the user and verifying computers by the revocation computer, creating a presentation token by the user computer, transmitting the presentation token to a verifying computer, and verifying the presentation token by the verifying computer.


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