Editing Real-Time Streaming Protocol (section)

== RTSP Encryption and RTSPS ==
There are several different methods for encrypting RTSP command messages and the RTP Video and Audio data.

RTSP 2.0 (RFC7826) defines several methods for encryption and introduces a new rtsps:// URL and many of these have been incorporated into RFC2326 RTSP 1.0 Clients and Servers.

* '''RTSPS URL (using the rtsps:// URL)''' - This method uses a [[Transport Layer Security|TLS]] Socket (default of Port 322) to establish an encrypted connection between the RTSP client and the RTSP Server.<br>Video and Audio can then sent in one of two ways
** '''TCP Video/Audio''' - The RTP Video and Audio is sent interleaved with the RTSP Commands over the already encrypted [[Transport Layer Security|TLS]] Connection
** '''UDP and Multicast-UDP Video/Audio''' - the RTP Video and Audio is encrypted using the [[Secure Real-time Transport Protocol|Secure RTP (SRTP)]] protocol and sent in parallel to the RTSPS [[Transport Layer Security|TLS]] connection
* '''RTSP over HTTPS''' - this method interleaves the RTP Video and Audio data into the RTSP Command Connection (as defined in RFC2326) and then sends the RTSP Command Connection via a pair of encrypted HTTPS connections. It uses Port 443 by default.

IANA have reserved the rtsps:// URL prefix and Port 322 for RTSPS.<ref>{{cite web | url=https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=rtsp | title=Service Name and Transport Protocol Port Number Registry }}</ref> As of September 2024, RTSP over HTTPS has been implemented in several ONVIF IP Cameras and RTSPS (using the rtsps:// URL) has been implemented by Axis and Bosch CCTV Cameras,<ref>{{cite web | url=https://www.ipcamlive.com/secure-rtsp-streaming | title=Secure RTSP streaming - SRTP/RTSPS }}</ref> [[FFmpeg]], [[GStreamer]], MediaMTX,<ref>[https://github.com/bluenviron/mediamtx MediaMTX]</ref> Ant Media Server<ref>[https://github.com/ant-media/Ant-Media-Server Ant Media Server Community]</ref> and SharpRTSP.<ref>{{cite web | url=https://github.com/ngraziano/SharpRTSP | title=Ngraziano/SharpRTSP | website=[[GitHub]] }}</ref>