DTLS
DTLS is the acronym for Datagram Transport Layer Security.
Datagram Transport Layer Security
A cryptographic protocol that provides privacy, authentication, and integrity for applications using datagram-based transport protocols, such as User Datagram Protocol (UDP). It is essentially a modified form of Transport Layer Security (TLS) designed to work with the unreliability and unordered delivery of UDP, making it well-suited for real-time communications, online gaming, and Internet of Things (IoT) applications.
DTLS prevents eavesdropping, tampering, and message forgery by encrypting and authenticating application data. It achieves this while preserving the low-latency benefits of UDP, introducing mechanisms like packet retransmission and out-of-order handling without requiring a persistent connection.
Common use cases include securing Voice over IP (VoIP) via Secure Real-time Transport Protocol (SRTP) key exchange, WebRTC signaling, and VPN connections using UDP-based tunnels.
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