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zuko98's avatar
zuko98
Copper Contributor
Jan 11, 2022

Powershell prompts

Hi,
Im writing a powershell automation script where i need to pass a password to a powershell prompt from another script file.
I wrote 2 script files. When i run the file number 1 (automation script) it will open a powershell window and ask to enter the password. Script 2 contain the password. So i want to pass that password to the powershell prompt so i don't have to type the password manually. Any answers will be appreciated.
powershell
  • SteveMacNZ's avatar
    SteveMacNZ
    Iron Contributor
    Jan 11, 2022

    zuko98 you could also use an encrypted secure password or encrypted credential file - attached is an example of generating a secure password file with and AES keyfile and importing the settings using an xml file

     

    Cred file could be used as well

    $Credential = Get-Credential
$Credential | Export-CliXml -Path "$PSScriptRoot\TestCred.xml"

     

    Using encrypted password string

    #Make encrypted string
#$key = "1234567891234567"
$plainPassword = "PasswordHere"
$securePassword = ConvertTo-SecureString $plainPassword -AsPlainText -Force
$secureKey = ConvertTo-SecureString $Key -AsPlainText -Force
$encryptedKey = ConvertFrom-SecureString $SecureKey -Key(1..16)
$encryptedPassword = ConvertFrom-SecureString -SecureString $SecurePassword -SecureKey $secureKey
$encryptedKey | Out-File "C:\temp\test\securekey-enckey.txt" 
$encryptedPassword | Out-File "C:\temp\test\securekey-encpass.txt" 
Write-Host "Key: $Key" 
Write-Host "Text Password: $plainPassword" 
Write-Host "Encrypted Password: $encryptedPassword" 
Write-Host "Encrypted Key: $encryptedKey"

    you can test the encrypted string using the following

    #Use
$encryptedKeyFromFile = Get-Content "C:\temp\test\securekey-enckey.txt"
$encryptedPasswordFromFile = Get-Content "C:\temp\test\securekey-encpass.txt"
$secureDecryptedKey = ConvertTo-SecureString $encryptedKeyFromFile -Key(1..16)
$secureDecryptedPassword = ConvertTo-SecureString $encryptedPasswordFromFile -SecureKey $secureDecryptedKey

$BSTR1 = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($secureDecryptedPassword)
$textPassword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR1)
 
$BSTR2 = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($secureDecryptedKey)
$key = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR2)
 
Write-Host "Key: $key"
Write-Host "Text Password: $textPassword"
Write-Host "Encrypted Password: $encryptedPasswordFromFile"
Write-Host "Encrypted Key: $encryptedKeyFromFile"

$User = "DEMOLAB\account"
$MyCredential = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $User, $secureDecryptedPassword
$MyCredential

     

     

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