Get SecureString as a Plain Text Parameter

问题

I'm trying to get a SecureString as plain text parameter to a command line PowerShell.

I know what is the form of the secure string. For example, the string "abc" would be a Secure String of "71289371289".

Then, I want to pass "71289371289" as a parameter to the script (Running it from command line), that would be my Secure String and then Decrypt it to a clear text to pass it to another program i'm calling from Powershell.

How would I do something like this?

Update:

I ended up using Credfile with PSCredential to persist the credentials across reboots until the script is complete.

回答1:

You can convert it back to a clear text password with SecureStringToBSTR:

Param(
    $securestring = (Read-Host -AsSecureString)
)
Write-Host "Encrypted Password: $(ConvertFrom-SecureString $securestring)"
$ClearText = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($securestring))
Write-Host "Original Password: $ClearText"

来源：https://stackoverflow.com/questions/54370482/get-securestring-as-a-plain-text-parameter