Files
zeekay dba3a60c34 cosigner: external-custodian co-signing leaf module
Decomplect Fireblocks / Utila / Anchorage co-signing out of luxfi/bridge
into one orthogonal, stdlib-only leaf. Wire-shape validation keeps secret
material off the wire; env + KMS secret stores fetch the secret half by
public id; the real Fireblocks REST + RS256-JWT family signs, the Utila and
Anchorage families fail loud until their vendor clients land; the dispatcher
runs families in parallel behind an AllApproved gate.

Errors name the cosigner KIND and never echo the resolved URI, tenant id,
or secret path.
2026-06-27 15:48:14 -07:00
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