The SafeNet Authentication Client is a tool which allows you to access a SafeNet USB hardware token and Code Signing or Document Signing certificate.
The client includes the drivers for the SafeNet USB token as well as a client which is used to install and manage certificates. When you sign a file, the client will prompt you for a password, ensuring that only authorised members of your team can access the certificate stored on the token.
Download a copy of the SafeNet Authentication client here.
Note: This link includes the Windows, MacOS and Linux versions of the client.