| 摘要 |
<p>The invention discloses an authentication method and a system for mobile multimedia broadcasting conditional access, and the authentication method includes the following steps: a front end authenticates a terminal which requests a special key, and when the authentication is successful, the front end groups the special key and transmits the special key to the terminal through a two-way channel and a one-way channel. The system includes the front end and the terminal. The invention enables the data transmission in the authentication process through the method of combining the two-way channel with the one-way channel, and improves the security of the information transmission.</p> |
