Saving credentials for reuse by powershell and error ConvertTo-SecureString : Key not valid for use in specified state

Question

I was doing something like described in this post to save credentials in a secured file so our automated process can use that to run remote PS scripts via Invoke-command: ht

Answer 1

ConvertFrom-SecureString takes a Key ( and SecureKey) parameter. You can specify the key to save the encrypted standard string and then use the key again in ConvertTo-SecureString to get back the secure string, irrespective of the user account.

http://technet.microsoft.com/en-us/library/dd315356.aspx

In a project, I have implemented asymmetric encryption, whereby people encrypt the password using the public key and the automation process has the private key to decrypt passwords: Handling passwords in production config for automated deployment