System and method for distribution of identity based key material and certificate
US10951423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Sep 27, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cryptographic system (100) is provided for distributing certificates comprising a certificate authority device (110) and multiple network nodes (140, 150, 160). A network node (140) sends a public key to the certificate authority device. The certificate authority device (110) generate a certificate comprising the public key, forms an identifier by applying an identity forming function to the certificate and generates local key material specific for the network node by applying a local key material generation algorithm of an identity based key pre-distribution scheme on the identifier, and sends the local key material encrypted to the network node. The network node may be authenticated implicitly through its access to a shared key obtainable from the local key material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.