Hello,

> Discussed driver signing issues with Windows Vista / Windows 7. Agreed
> that it should be possible to self-sign the drivers OpenVPN uses.

Not for releases, even for public betas this is a no-go.
If test signing is enabled DRM content can't be played.

Please read the documentation, it's well documented.
http://www.microsoft.com/whdc/winlogo/drvsign/drvsign.mspx

|Enabling Test Signing
|Use the BCDEdit command-line tool to enable test signing. To use BCDEdit, the 
user must be a member
|of the Administrator group on the system and run the command from an elevated 
command prompt.
|An elevated command prompt can be launched by creating a desktop shortcut to 
cmd.exe,
|right-clicking the shortcut, and then clicking Run as administrator.
|The following shows an example of running BDCEdit at the command prompt:
|// Accept test signed kernel mode signatures
|Bcdedit.exe –set TESTSIGNING ON
|
|// Do not accept test signed kernel mode signatures
|Bcdedit.exe –set TESTSIGNING OFF
|
|The TESTSIGNING boot configuration option determines whether Windows Vista 
accepts test-signed
|kernel-mode binaries. The option is not defined by default, which means that 
digital signatures
|on test-signed kernel-mode drivers will not verify and will not load. When 
Windows Vista accepts
|test-signed kernel-mode binaries, some premium content that is protected may 
not be accessible on the system.

Source: Digital Signatures for Kernel Modules on Systems Running Windows Vista 
- kmsigning.doc

The reason for Kernel-Mode Code Signing is that Microsoft can identify
the author of crashing drivers.

greetings
Carsten


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