name: DTLS
full_form: Datagram Transport Layer Security
context: The main technique for making DTLS more suitable for CoAP is to leave the DTLS session open for much longer period of time than it is left open in other application contexts. This mode of operation is described in CoAP protocol, and the basic idea seems to be that if the DTLS handshake is done using strong credentials, it needs not to be closed that soon. This saves energy and resources from IoT UE. "DTLS connections in RawPublicKey and Certificate mode are set up using mutual authentication so they can remain up and be reused for future message exchanges in either direction. Devices can close a DTLS connection when they need to recover resources, but in general they should keep the connection up for as long as possible. Closing the DTLS connection after every CoAP message exchange is very inefficient." [5] DTLS connection created using shared secrets is not mentioned, however, this does not mean that DTLS handshake created using 3GPP credentials stored in UICC would not meet the
description: Datagram Transport Layer Security (DTLS) is a protocol used for secure communication over datagram-based networks, such as the Internet. It provides encryption and authentication for datagrams, ensuring confidentiality, integrity, and authenticity of data.
explanation: The text describes DTLS as a protocol that provides security for datagram-based communication, highlighting its role in encryption, authentication, and data protection. This clearly classifies it as a Protocol.
section_title: B.1.2	Existing and evolving TLS optimizations
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