Internet searches for "SketchUp 2017 License Key" or "Authorization Code generator" often lead to "cracked" versions. This presents severe technical and security risks:

: This is a unique code provided to you upon purchasing a SketchUp Pro license. It’s used to unlock the full features of SketchUp Pro.

Since Trimble’s licensing servers for older versions are often retired or restricted, these keys frequently fail to work. How to Legally Access SketchUp 2017