The “Using RSA Algorithms with CBOR Object Signing and Encryption (COSE) Messages” specification is now RFC 8230<https://tools.ietf.org/html/rfc8230> – an IETF standard. The abstract for the specification is: The CBOR Object Signing and Encryption (COSE) specification defines cryptographic message encodings using Concise Binary Object Representation (CBOR). This specification defines algorithm encodings and representations enabling RSA algorithms to be used for COSE messages. Encodings are specified for the use of RSA Probabilistic Signature Scheme (RSASSA-PSS) signatures, RSA Encryption Scheme – Optimal Asymmetric Encryption Padding (RSAES-OAEP) encryption, and RSA keys.
Some of these values are already being used by the sixth working draft of the W3C Web Authentication specification<http://www.w3.org/TR/2017/WD-webauthn-20170811/>. In addition, the WebAuthn specification defines algorithm values for RSASSA-PKCS1-v1_5 signatures, which are used by TPMs, among other applications. The RSASSA-PKCS1-v1_5 signature algorithm values should also be registered shortly. Thanks to Kathleen Moriarty for her Area Director sponsorship of the specification! -- Mike P.S. This notice was also posted at http://self-issued.info/?p=1733 and as @selfissued<https://twitter.com/selfissued>.
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