Invention Grant
- Patent Title: Timestamp-based token revocation
- Patent Title (中): 基于时间戳的令牌撤销
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Application No.: US13293634Application Date: 2011-11-10
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Publication No.: US08955084B2Publication Date: 2015-02-10
- Inventor: Tu Dien Do , Scott Peter Gammon , John Andrew McGregor
- Applicant: Tu Dien Do , Scott Peter Gammon , John Andrew McGregor
- Applicant Address: CA Waterloo
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo
- Agency: Ridout & Maybee LLP
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F21/33 ; H04L9/32 ; H04L29/08

Abstract:
A token used when a first device authenticates itself to a third device may be associated with a token issue timestamp. Upon receipt of an indication that all previously issued tokens are to be revoked, a second device may store a revocation timestamp. Upon receiving, from the second device, a request for establishing conditions for a file transfer, from the first device, and an indication of a token issue timestamp associated with the request, the second device may compare the token issue timestamp to the revocation timestamp. Responsive to determining, based on the comparing, that the token issue timestamp precedes the revocation timestamp, the second device may deny the request.
Public/Granted literature
- US20130125228A1 TIMESTAMP-BASED TOKEN REVOCATION Public/Granted day:2013-05-16
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