RFC 6189: ZRTP: Media Path Key Agreement for Unicast Secure RTP

This document defines ZRTP, a protocol for media path Diffie-Hellman exchange to agree on a session key and parameters for establishing unicast Secure…

Read RFC 6189 on the RFC Editor

Outgoing relationships (30 related RFCs)

Normative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Normative reference — RFC 3550: RTP: A Transport Protocol for Real-Time Applications
Normative reference — RFC 2104: HMAC: Keyed-Hashing for Message Authentication
Normative reference — RFC 4566: SDP: Session Description Protocol
Normative reference — RFC 3711: The Secure Real-time Transport Protocol (SRTP)
Normative reference — RFC 4960: Stream Control Transmission Protocol
Normative reference — RFC 4880: OpenPGP Message Format
Normative reference — RFC 3526: More Modular Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange (IKE)
Normative reference — RFC 4231: Identifiers and Test Vectors for HMAC-SHA-224, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
Normative reference — RFC 5479: Requirements and Analysis of Media Security Management Protocols
Normative reference — RFC 5114: Additional Diffie-Hellman Groups for Use with IETF Standards
Normative reference — RFC 6188: The Use of AES-192 and AES-256 in Secure RTP
Normative reference — RFC 5759: Suite B Certificate and Certificate Revocation List (CRL) Profile
Informative reference — RFC 3261: SIP: Session Initiation Protocol
Informative reference — RFC 4086: Randomness Requirements for Security
Informative reference — RFC 1191: Path MTU discovery
Informative reference — RFC 5245: Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols
Informative reference — RFC 1981: Path MTU Discovery for IP version 6
Informative reference — RFC 4251: The Secure Shell (SSH) Protocol Architecture
Informative reference — RFC 4474: Enhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)
Informative reference — RFC 5869: HMAC-based Extract-and-Expand Key Derivation Function (HKDF)
Informative reference — RFC 6090: Fundamental Elliptic Curve Cryptography Algorithms
Informative reference — RFC 5764: Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP)
Informative reference — RFC 4568: Session Description Protocol (SDP) Security Descriptions for Media Streams
Informative reference — RFC 5117: RTP Topologies
Informative reference — RFC 4475: Session Initiation Protocol (SIP) Torture Test Messages
Informative reference — RFC 4567: Key Management Extensions for Session Description Protocol (SDP) and Real Time Streaming Protocol (RTSP)
Informative reference — RFC 3514: The Security Flag in the IPv4 Header
Informative reference — RFC 4579: Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents
Informative reference — RFC 3824: Using E.164 numbers with the Session Initiation Protocol (SIP)

Incoming relationships (8 related RFCs)

Informatively referenced by — RFC 7201: Options for Securing RTP Sessions
Informatively referenced by — RFC 6679: Explicit Congestion Notification (ECN) for RTP over UDP
Informatively referenced by — RFC 8859: A Framework for Session Description Protocol (SDP) Attributes When Multiplexing
Informatively referenced by — RFC 6562: Guidelines for the Use of Variable Bit Rate Audio with Secure RTP
Informatively referenced by — RFC 7983: Multiplexing Scheme Updates for Secure Real-time Transport Protocol (SRTP) Extension for Datagram Transport Layer Security (DTLS)
Informatively referenced by — RFC 8844: Unknown Key-Share Attacks on Uses of TLS with the Session Description Protocol (SDP)
Informatively referenced by — RFC 8922: A Survey of the Interaction between Security Protocols and Transport Services
Informatively referenced by — RFC 8862: Best Practices for Securing RTP Media Signaled with SIP