Hybrid broadcast encryption method
US7848525B2 · kind B2 · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/601
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A hybrid broadcast encryption method is provided. The hybrid broadcast encryption method includes setting initialization values, generating a node secret using the initialization values; generating a private secret using the node secret; sending the node secret and the private secret; generating a broadcast message based on a revoked group; encrypting a session key using a key encryption key (KEK) which is allocated to every user group and the broadcast message; and broadcasting to every user the encrypted session key and the broadcast message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.