Hi all, working on draft-ietf-uta-tls13-iot-profile, Thomas and I have been looking at the implementation status of TLS/DTLS extensions on embedded devices. Here is what we found out looking at various popular stacks. There are lots of features in prototype status and we have not taken those into account.
"red" means not implemented, "green" refers to an implemented feature, and "white" is an indication that we didn't have a chance to figure out whether the feature is supported or not because it was not described in the documentation. In a nutshell, it is fair to say that certificate and PSKs are well supported. Raw public key support is also available with a number of implementations. What is a bit disappointing is that many extensions targeting IoT optimizations are not implemented. It is hard to say why. Maybe companies don't feel a need to use these optimizations, maybe the optimizations aren't good enough, or companies are unaware of these RFCs. Please let us know if we got something wrong or if we forgot your implementation. Ciao Hannes IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
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