Devices and methods for client device authentication
US10708058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2017 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An access point receives from a client a first nonce and a first cryptographic hash for the first nonce, the first cryptographic hash calculated using a first key derived from a second key, the second key input on the client or derived from a passphrase input on the client, derives first keys from each of a stored primary input and at least one stored secondary input valid at the deriving, the stored primary input and the at least one stored secondary input each being one of a second key and a passphrase, verifies the cryptographic hash using each derived first key to find a derived first key that checks the first cryptographic hash, generates a third key and a second cryptographic hash using the derived first key that checks the first cryptographic hash, and sends the third key and the second cryptographic hash to the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.