Invention Grant
- Patent Title: Partial revocation list
- Patent Title (中): 部分撤销清单
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Application No.: US12859032Application Date: 2010-08-18
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Publication No.: US09121119B2Publication Date: 2015-09-01
- Inventor: Brian Neill , Ashok Vadekar
- Applicant: Brian Neill , Ashok Vadekar
- Applicant Address: CA Mississauga, Ontario
- Assignee: Certicom Corp.
- Current Assignee: Certicom Corp.
- Current Assignee Address: CA Mississauga, Ontario
- Agency: Fleit Gibbons Gutman Bongini & Bianco P.L.
- Agent Jon Gibbons
- Main IPC: H04L29/06
- IPC: H04L29/06 ; D04H13/00 ; G06F21/62 ; G06F21/64 ; G06F21/70 ; G06F21/84 ; G11B20/00

Abstract:
A partial revocation list and a system and method for using the partial revocation list for tracking the authenticity of replacement cartridges in a manufactured device to inhibit cloning of the cartridges is provided. A revocation pool is maintained by a manufacturer who chooses a partial revocation list from the revocation pool to store in the memory of the cartridge. The device stores its own revocation list, informs the manufacturer of cartridges which have been used and checks when a new device is installed to ensure a cloned replacement is not being used. The partial revocation list distributes enough revocation information to devices to statistically impair the cartridge yield of a cloning operation.
Public/Granted literature
- US20100312791A1 PARTIAL REVOCATION LIST Public/Granted day:2010-12-09
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