Apparatus and method for a secure broadcast system
US8718279B2 · kind B2 · utility
2Cited by
302References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2004 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Nov 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for provisioning an access key used for a controlled access broadcast service is disclosed. In one aspect, a method for secure processing in a device that securely stores a secret key comprises receiving a plurality of challenges from a network, generating a plurality of ciphering keys based on the secret key and the plurality of challenges, and generating an access key based on the plurality of ciphering keys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.