Content providing system, information processing device and memory card
US7783884B2 · kind B2 · utility
28Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Apr 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A memory card 10 inserted in a terminal device 20 establishes a SAC with each of a content server 1, a content server 2, a settlement server 1 and a settlement server 2, using an application program corresponding to the server, to securely receive and transmit data. The memory card 10 acquires a unique private key and a unique public key for each application program, and establishes a SAC with each server using the acquired private key and public key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.