PnP Device Installation Signing Requirements (Windows Vista and Later)
The driver signing requirements for Plug and Play (PnP) device installation depend on the version of Windows and on whether the driver is being signed for public release or by a development team during the development and test of the driver. Starting with Windows Vista, the 64-bit versions of Windows also have kernel-mode code signing requirements that determine whether a kernel-mode driver can be loaded.
The Windows Logo Program has test categories for a variety of device types. The list of test categories can be found at Windows Logo Program Test Categories. If a test category for the device type is included in this list, you should obtain a WHQL release signature.
A valid WHQL release signature verifies that the driver complies with the requirements of the Windows Logo Program, verifies the identity of the publisher, and verifies that the driver has not been altered.
To be considered signed by PnP device installation, the catalog file of the driver package must be signed by WHQL or signed by a third-party release certificate (a Software Publisher Certificate (SPC) or a commercial release certificate). A WHQL release signature should be used if one can be obtained. A third-party release signature verifies the identity of the publisher and that the driver has not been altered. However, unlike a WHQL release signature, a third-party release signature does not verify driver functionality.
Also be aware that for 64-bit versions of Windows Vista and later versions of Windows, the kernel-mode code signing policy further requires that a kernel-mode driver be signed by WHQL or by an SPC.
For more information about release-signing, see Signing Drivers for Public Release (Windows Vista and Later).
In Windows Vista and later versions of Windows, a driver must have a WHQL test signature or must be signed by a test certificate. For more information about test-signing drivers, see Signing Drivers during Development and Test (Windows Vista and Later).
Build date: 5/16/2013