Systems and methods for authentication of printer supply items
US9876794B2 · kind B2 · utility
33Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Jul 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/126
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for authenticating printer supply items using revocation lists are disclosed. Revocation lists are updated using DNSSEC to communicate between a printer and a DNS name server. A domain name is created containing a printer supply item serial number, a message digest, and a message authentication code. The domain name is sent to the DNS name server, and the returned IP address is used to update a revocation list. Other systems and methods are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.