The “Use of Hybrid Public-Key Encryption (HPKE) with CBOR Object Signing and Encryption (COSE)” specification has been updated to align with pertinent changes recently applied to the JOSE HPKE specification. Changes in draft 19 are:
- Utilize distinct algorithm identifiers for the use of HPKE for Integrated Encryption and HPKE for Key Encryption.
- Adds HPKE-7 algorithms.
- Defines use of the RFC 9052 Enc_structure for COSE HPKE.
The next draft of COSE HPKE should update the examples to correspond to these changes. After that, I believe the next step is to hold another set of concurrent working group last calls (WGLCs) for both specifications.
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