Authentication method employing elliptic curve cryptography
US8117447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2008 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Oct 31, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/41407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an authentication method employing elliptic curve cryptography (ECC), applicable to a mobile broadcast TV system having one or more head end systems, at least a transmitter, and at least a mobile set. The authentication method comprises at least one request message from mobile sets simultaneously or in a short period of time arriving at a head end system for authentication; manipulating each broadcast authentication message by ECC; manipulating each service request message by ECC and pairing operation; performing a mutual authentication between the head end system and mobile sets by ECC and pairing operation; and broadcasting one group of authentication messages to all the mobile sets of many requests arrived at the head end system simultaneously or in a short period of time for the same service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.