Secure transmission method and apparatus for transport stream
US9124772B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 9, 2012 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Apr 23, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a secure transmission method and apparatus for transport stream (TS). The method is applied to a receiving terminal of a digital television broadcasting system, comprising: after receiving a TS, a first device in the receiving terminal encrypts the received TS using a key already negotiated with a second device in the receiving terminal and utilizing a determined encryption algorithm, and sends the encrypted TS to the second device in the receiving terminal; after receiving the encrypted TS, the second device in the receiving terminal decrypts the received encrypted TS using the key and utilizing a decryption algorithm corresponding to the encryption algorithm. Using the present invention can protect the security of the TS transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.