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Editorial
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marco-tiloca-sics committed Nov 17, 2023
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Expand Up @@ -75,7 +75,7 @@ The lightweight authenticated key exchange protocol EDHOC can be run over CoAP a

Ephemeral Diffie-Hellman Over COSE (EDHOC) {{I-D.ietf-lake-edhoc}} is a lightweight authenticated key exchange protocol, especially intended for use in constrained scenarios. In particular, EDHOC messages can be transported over the Constrained Application Protocol (CoAP) {{RFC7252}} and used for establishing a Security Context for Object Security for Constrained RESTful Environments (OSCORE) {{RFC8613}}.

This document details this use of the EDHOC protocol, and specifies a number of additional and optional mechanisms. These especially include an optimization approach that combines the EDHOC execution with the first OSCORE transaction (see {{edhoc-in-oscore}}). This allows for a minimum number of round trips necessary to setup the OSCORE Security Context and complete an OSCORE transaction, e.g., when an IoT device gets configured in a network for the first time.
This document details the use of the EDHOC protocol with CoAP and OSCORE, and specifies a number of additional and optional mechanisms. These especially include an optimization approach that combines the EDHOC execution with the first OSCORE transaction (see {{edhoc-in-oscore}}). This allows for a minimum number of round trips necessary to setup the OSCORE Security Context and complete an OSCORE transaction, e.g., when an IoT device gets configured in a network for the first time.

This optimization is desirable, since the number of message exchanges can have a substantial impact on the latency of conveying the first OSCORE request, when using certain radio technologies.

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