Complete a BYOK Model-A signing-key import (SaaS)
Forwards the tenant’s already-wrapped, opaque key material (Model A — never cleartext) to KMS via the signer sidecar, then persists ONLY the public certificate + the per-tenant KMS reference + custody_provider=KMS (never key material). RBAC: signing-key:import (admin-only provisioning role). Field presence/type is validated against the schema (422); a malformed ISPB or invalid base64 is a coded 400. Idempotent via the MANDATORY Idempotency-Key header.
Authorizations
JWT bearer token issued by the identity provider.
Headers
Idempotency key for safe retries (MANDATORY on this high-sensitivity endpoint).
"018f8a3e-4b2c-7c1a-9e5d-2f6a1b3c4d5e"
Body
Base64-encoded wrapped private-key material (Model A — never cleartext).
Base64-encoded opaque KMS import token from the import-params step.
KMS key id returned by the import-params step.
"018f8a3e-4b2c-7c1a-9e5d-2f6a1b3c4d5e"
Participant ISPB the certificate belongs to (8-digit identifier).
"29011780"
PEM-encoded PUBLIC ICP-Brasil A1 certificate.
Response
OK

