How does one securely handle passwords in a custom written PowerShell cmdlet?

Question

Assume I have a custom PowerShell Cmdlet that exports data and encrypts it using a password.

[Cmdlet(VerbsData.Export, \"SampleData\")]
public class ExportSample         


        

Answer 1

You can find in this answer a way to crypt with the computer password (works on safe machines).

Using @Christian response you can put the password to the disk like this :

PS > $cred.Password | ConvertFrom-SecureString | Set-Content c:\temp\password.txt

And retreive it with :

$password = Get-Content c:\temp\password.txt | ConvertTo-SecureString
$cred = New-Object System.Management.Automation.PsCredential "UserName",$password