| 摘要 |
<p>For enhancing a Secure Real-time Transport Protocol (SRTP) session between a communication device (CD) and an application server (AS), the application server (AS): negotiates at least two different cryptographic contexts with the communication device (CD), stores a cryptographic context identifier (IdC) in correspondence with a set of cryptographic parameters for each negotiated cryptographic context, activates a set of cryptographic parameters and producing a SRTP packet with a RTP payload encrypted by means of the activated set of cryptographic parameter.</p> |
