docs: add EdDSA/Ed25519 to allowed WebAuthn signature schemes#250
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mraszyk wants to merge 1 commit into
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docs: add EdDSA/Ed25519 to allowed WebAuthn signature schemes#250mraszyk wants to merge 1 commit into
mraszyk wants to merge 1 commit into
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eichhorl
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May 13, 2026
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changelog lives here: https://github.com/dfinity/developer-docs/blob/main/docs/references/ic-interface-spec/changelog.md note: the original PR also didn't include any entry in the changelog |
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We should only update the changelog and merge this PR when it is actually rolled out in production. |
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converted into draft to avoid accidental merge |
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Summary
Update the IC interface specification to allow EdDSA on curve Ed25519 as a third WebAuthn signature scheme (alongside ECDSA P-256 and RSA PKCS#1v1.5), mirroring the implementation change in dfinity/ic#10081.
Changes
docs/references/ic-interface-spec.md§Web Authentication: addEdDSA on curve Ed25519to the allowed-schemes list; clarify the signature encoding note to call out that Ed25519 WebAuthn signatures are the raw 64-byteR || sconcatenation from RFC 8032 §5.1.6 (not DER-wrapped, which only applies to ECDSA).docs/references/_attachments/interface-spec-changelog.md: new entry. The version number (0.61.0) is a placeholder — happy to adjust to whatever the maintainers prefer.Context
Was triggered by the implementation work in dfinity/ic#10081 to accept Ed25519 WebAuthn keys (e.g. NitroKey 3A authenticators emit
kty=OKP / alg=EdDSA / crv=Ed25519). Reviewer @eichhorl asked whether there's a corresponding spec PR — this is it.