Transmission apparatus, reception apparatus, communication system, transmission method, and reception method
US9185130B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/23476
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is a transmission apparatus capable of avoiding unnecessary decryption and preventing a denial-of-service attack. The transmission apparatus that establishes a secure communications channel (SA) between the transmission apparatus and a reception apparatus includes a creation section that creates a packet, an encryption section that, based on a ratio of a redundant packet to the packets created by the packet creation section and on an instruction from the reception apparatus, determines an encryption coverage in the created packet and encrypts data in the encryption coverage, and a transmission section that transmits the encrypted packet through SA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.