Sign the firmware
Create a signed firmware artifact that devices can verify before accepting or running the update.
Security updates and automatic-update readiness
Update readiness is more than file delivery
CRA pushes connected-product OEMs to think about security updates, automatic-update readiness, support-period processes, and evidence. The hard part is not only moving a file. Teams need signing, authorization, rollout rules, device eligibility, verification, update state, rollback or quarantine paths, and records they can trust.
Update workflow at a glance
SignAuthorizeCheck eligibilityRoll outPause / rollback / quarantineRetain evidence
A security update should be treated as a device-trust decision: what is signed, who is eligible, what policy applies, what happened during rollout, and which records remain.
Security-update workflow
Authorize the release
Approve which product, device family, version, or cohort is eligible for the security update.
Apply rollout rules
Control staged rollout, retry thresholds, pause conditions, rollback paths, and operator approvals.
Verify device eligibility
Check identity, certificate state, lifecycle state, firmware version, and policy before update authorization.
Track update state
Record pending, authorized, delivered, installed where known, failed, paused, or rolled-back states.
Retain evidence
Keep the signing record, authorization event, rollout history, device state, and audit summary.
Update concern to evidence retained
| Requirement / concern | Workflow control | Evidence retained |
|---|---|---|
| Firmware authenticity | Sign firmware before release and bind it to an authorization workflow. | Signed firmware record, release ID, authorization event. |
| Device eligibility | Check device identity, certificate state, lifecycle state, firmware version, and policy. | Eligible device cohort, authorization record, rejected or paused devices. |
| Automatic-update readiness | Define configured rollout rules, staged deployment, pause conditions, and operator approvals. | Update policy, rollout state, pause / retry / rollback decisions. |
| Vulnerability handling | Identify affected devices, authorize updates, and quarantine or revoke trust where needed. | Affected cohort, update campaign, quarantine or revocation history. |
| Data integrity | Verify signed updates and reject unauthorized or tampered firmware where device architecture supports it. | Verification result, rejection event, firmware-integrity status. |
| Support period | Retain update state, lifecycle state, and audit records throughout the support period. | Update status, lifecycle history, audit summary. |
Product proof: signed update authorization
This proof block shows the claim QuarkLink supports: a signed firmware update is authorized for eligible devices, connected to rollout rules, lifecycle state, and evidence records.
Firmware 2.4.1 release authorization
Signature and release record retained for the update.
Policy checks identity, certificate, version, and state.
Staged deployment, pause condition, retry threshold, and approval.
Devices accept signed updates and reject unauthorized firmware.
Failed or risky devices can be isolated from rollout.
Authorization, rollout, status, and lifecycle events retained.
Where update readiness fits
QuarkLink can support automatic-update workflow enablement where configured. It does not guarantee installation behavior, opt-out behavior, product-specific update UX, or customer policy by itself. It provides the device-trust workflow and evidence layer that update architecture can use.
QuarkLink bridge
QuarkLink connects signed update authorization to device identity, certificate state, rollout policy, lifecycle state, and evidence.
Lifecycle context
Update readiness depends on the trust record that started at provisioning and continues through certificate renewal, revocation, quarantine, and decommissioning.
Build update evidence into the lifecycle
Treat every security update as a trust decision: who is eligible, what is authorized, what changed, what failed, and which evidence remains.