Using Datagram Transport Layer Security (DTLS) for Key Management for the Stream Control Transmission Protocol (SCTP) DTLS Chunk

This document defines how Datagram Transport Layer Security (DTLS) 1.3 is used to establish keys for securing SCTP using the DTLS Chunk mechanism. It specifies how a DTLS handshake is used to establish the initial security context for an SCTP association and describes procedures for key updates and post-handshake authentication. The goal is to enable authenticated, and confidential communication over SCTP using the DTLS Chunk, leveraging standardized DTLS features for key management and rekeying.