Where/How to generate the validation key and decryption key for SSRS View State Validation

Question

According to this Technet article, I need to :

Generate a validation key and decryption key by using the autogenerate functionality provided by the .NET Framework.

The step does not explain how to generate the validation key and decryption key.

Answer 1

You can generate the machine key through IIS Manager.

Use Server Manager -> Roles -> Web Server (IIS) -> IIS Manager. Click on the Web Server in the IIS Manager, then in the right pane, double click Machine Key in the ASP.NET section.

Answer 2

Running the PowerShell script from this technet article is the easiest and most secure in my opinion.

https://support.microsoft.com/en-us/kb/2915218#AppendixA