The Implementation of a Secure RTP Transmission Method Based on DTLS

Abstract

Neither the Real-time Transport Protocol security (RTP) nor the Secure Real-time Transport Protocol (SRTP) key management mechanisms is adequate, the complexity of SRTP based on Data gram Transport Layer Security (DTLS) is too high to reduce the scope of use, so this paper designs a real-time encrypted transport mechanism, using DTLS to achieve key management and negotiating encryption algorithms. Extend the DTLS, and then achieve encryption of RTP based on the DTLS and packaging transmission. To be compared in the particular case, the method, under certain safety requirements, is better suited for the high efficiency transmission network. The mechanism provides a good foundation for real-time multipath transmission.