Authentication system
US8918647B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 2014 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | May 6, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device authentication system including one or more devices, child servers capable of communicating therewith, and a root server configured to enroll devices by: collecting device-specific tokens and creating a complete verification set (“CVS”) therefrom; creating a working verification set (“WVS”) by selecting a subset of the CVS; creating a limited verification set (“LVS”) by performing a derivation function on at least part of the WVS; and distributing part or all of the LVS to child servers. A device authentication system configured such that a PUF-containing device and a server communicating with the device can perform an extended BPV generation. A device authentication system that includes a device containing a PUF and is configured to perform error decoding on subsets of an authentication-related value multiple times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.