Dear COSE WG, I am allowing myself to relaunch the conversation on adopting Ascon over COSE. In our team, we are still very interested in this idea, and we think it could be a great and meaningful contribution to the COSE standard.
After IETF 123 Madrid, where it was warmly welcomed, the draft underwent several major improvements, including: 1. Three variations of Ascon-AEAD128 for COSE with 128-, 64-, and 32-bit tags correspondingly. 2. Two variations of Ascon-AEAD128 for JOSE with 128-, 64-bit tags. 3. The examples for COSE and JOSE with Ascon-AEAD128 with our implemented libraries. We find it important to have a 32-bit Ascon tag option in COSE for extremely constrained use-cases, including the securization of underwater, satellite, and ambient IoT networks. But, in the draft, Ascon with the 32-bit tag is marked "Filter Only" to prevent its use without an adequate risk analysis. We would also like to know if there is an interest in introducing Ascon-Hash256 over COSE. In the meantime, we are going to prepare the next version of the draft, including Ascon-Hash256 over COSE. We count on the interest in the WG to work on the idea together and are open to any remarks/questions. Best regards, Dmytro Ochkas _______________________________________________ COSE mailing list -- [email protected] To unsubscribe send an email to [email protected]
