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docs(signing): cite the RFC 9421 section that defines ECDSA P-256 #252

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damaz91 merged 1 commit into from
Oct 19, 2026
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docs(signing): cite the RFC 9421 section that defines ECDSA P-256 #252

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2 changes: 1 addition & 1 deletion rest/python/server/ucp_signing.py
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Expand Up @@ -20,7 +20,7 @@
* RFC 9421 signature base construction and the UCP covered-component set.
* RFC 9530 `Content-Digest` over the raw body bytes (`sha-256`).
* ECDSA P-256 (`ES256`) verification with fixed-width raw `r||s` signatures
(RFC 9421 Section 3.3.1) -- never ASN.1/DER -- and Ed25519 (RFC 8032).
(RFC 9421 Section 3.3.4) -- never ASN.1/DER -- and Ed25519 (RFC 8032).
* Signer public-key discovery from the `UCP-Agent` profile's `signing_keys[]`.

Only the encoding and canonicalization are implemented here; every
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