Replaceable item authentication
US10277399B2 · kind B2 · utility
1Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3273
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A replaceable item for a host device includes a non-volatile memory and logic. The non-volatile memory stores passwords or authentication values, and/or a cryptographic key. The logic permits retrieval of a predetermined maximum number of the passwords from the non-volatile memory to authenticate the replaceable item within the host device. The predetermined maximum number of the passwords is less than the total number of the passwords.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.