Security & Trust
How provenance, signing, privilege, isolation, and scope shape driver trust. Key sections: Trust has separate questions; Privilege raises the stakes.
Trust has separate questions
A signature can provide signing-organization and integrity evidence, while a hardware ID addresses matching and a privilege boundary addresses authority. These facts reinforce one another but do not answer the same question.
Privilege raises the stakes
Kernel-mode components can coordinate shared memory, interrupts, devices, and system services. The host environment therefore applies package, signing, loading, and interface policies that differ from an ordinary application.
Scope is part of trust
A package should be understood by its declared files, services, devices, architecture, and interface role. Trust in provenance does not establish broad compatibility or a guaranteed behavior outside that scope.
A reference should be candid
The appropriate language is evidence-based: signed by, matches an identity, declares a service, or runs in a privileged context. Avoid collapsing those observations into an unsupported safety verdict.
Reference facts
- Trust dimensions
- Provenance, integrity, identity, privilege, scope, and policy.
- Key boundary
- A trusted package is not automatically a compatible package for every device.
Questions and answers
Does signing prove a package is suitable?
No. It supplies trust evidence about content and the signing organization; device identity, platform model, capability scope, and interface still matter.
Why does driver security involve isolation?
Isolation can limit authority and the reach of an unexpected state, particularly where privileged and user-mode components meet.