[Ace] draft-ietf-ace-coap-est-oscore-11
Lijun Liao <lijun.liao@nio.io> Mon, 06 July 2026 08:54 UTC
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From: Lijun Liao <lijun.liao@nio.io>
To: "ace@ietf.org" <ace@ietf.org>
Thread-Topic: draft-ietf-ace-coap-est-oscore-11
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Date: Mon, 06 Jul 2026 08:54:00 +0000
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Subject: [Ace] draft-ietf-ace-coap-est-oscore-11
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Hi Authors, Please find below our comments related to -11. - Media types (Section 4.3.2, CBOR-encoded Objects) * Add the `+cbor` suffix to all media types beginning with `cose-c509` to align with `draft-ietf-cose-cbor-encoded-cert-20`. * For the `/crts` operation, the media type should be changed to `cose-c509+cbor; usage=chain`. * For the `/skg` operation, the media type `cose-c509-pem+cbor` could either replace the current media type or be added as an additional supported type. * The mechanism for enrolling KEM-only (e.g., ML-KEM) certificates using a CSR is not specified. * The same path is currently used for both X.509 and C509 certificates. Would it be preferable to use dedicated paths for each certificate type, for example, `/sen` for X.509 and `/csen` for C509? * As noted in the Internet-Draft, not all operations, e.g.`/skg`, is not supported by all server implementations. Would it be useful to introduce a new operation, for example `/caps`, to allow servers to advertise their supported capabilities? BR Lijun [Banner]<http://www.nio.io> This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. You may NOT use, disclose, copy or disseminate this information. If you have received this email in error, please notify the sender and destroy all copies of the original message and all attachments. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.
- [Ace] draft-ietf-ace-coap-est-oscore-11 Lijun Liao