( ) is a protocol used to secure datagram-based communications. It's based on the stream-focused Transport Layer Security ( ), providing a similar level of security. As a datagram protocol, DTLS doesn't guarantee the order of message delivery, or even that messages will be delivered at all. However, DTLS gains the benefits of datagram protocols, too; in particular, the lower overhead and reduced latency. Datagram Transport Layer Security DTLS TLS These features are especially useful for one of the most common areas in which DTLS comes into play: . All of the WebRTC related protocols are required to encrypt their communications using DTLS; this includes , , and . WebRTC SCTP SRTP STUN Learn more General knowledge on Wikipedia Datagram Transport Layer Security Specifications RFC 6347: Datagram Transport Layer Security Version 1.2 Datagram Transport Layer Security Protocol Version 1.3 draft specification Related specifications RFC 5763: Framework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using DTLS RFC 5764: DTLS Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP) RFC 6083: DTLS for Stream Control Transmission Protocol (SCTP) RFC 8261: Datagram Transport Layer Security (DTLS) Encapsulation of SCTP Packets RFC 7350: Datagram Transport Layer Security (DTLS) as Transport for Session Traversal Utilities for NAT (STUN) RFC 7925: TLS / DTLS Profiles for the Internet of Things View Previous Terms: Block cipher mode of operation Certificate authority Challenge-response authentication Cipher Cipher suite Ciphertext CORS CORS-safelisted request header CORS-safelisted response header Cross-site scripting Cryptanalysis Cryptographic hash function Cryptography CSP CSRF Decryption Digital certificate Encryption Forbidden header name Forbidden response header name Hash HMAC HPKP HSTS HTTPS Key MitM OWASP Preflight request Public-key cryptography Reporting directive Robots.txt Same-origin policy Session Hijacking SQL Injection Symmetric-key cryptography TOFU Transport Layer Security (TLS) Credits Source: https://developer.mozilla.org/en-US/docs/Glossary/DTLS Published under license Open CC Attribution ShareAlike 3.0

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Glossary of Security Terms: Datagram Transport Layer Security

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