UnsecureString

class UnSecureString {
   [string]$EncryptedString
   [byte[]]$Key
   UnSecureString() { }
   UnSecureString([System.Security.SecureString]$SecureString) {
      $vKey = New-Object Byte[](32)
      $Rng = [System.Security.Cryptography.RNGCryptoServiceProvider]::Create()
      $Rng.GetBytes($vKey)
      $this.Key = $vKey
      $this.EncryptedString = ConvertFrom-SecureString -SecureString $SecureString -Key $vKey
   }
   UnSecureString([string]$String) {
      $SecureString = ConvertTo-SecureString -String $String -AsPlainText -Force
      $vKey = New-Object Byte[](32)
      $Rng = [System.Security.Cryptography.RNGCryptoServiceProvider]::Create()
      $Rng.GetBytes($vKey)
      $this.Key = $vKey
      $this.EncryptedString = ConvertFrom-SecureString -SecureString $SecureString -Key $vKey
   }
   [System.Security.SecureString]ToSecureString() {
      return (ConvertTo-SecureString -String $this.EncryptedString -Key $this.Key)
   }
   [string]ToString() { return $this.EncryptedString }
}
class UnCredential {
   [string]$Username
   [UnSecureString]$Password
   UnCredential([string]$Username, [System.Security.SecureString]$Password) {
      $this.Username = $Username
      $this.Password = [UnsecureString]::new($Password)
   }
   UnCredential([string]$Username, [string]$Password) {
      $this.Username = $Username
      $this.Password = [UnsecureString]::new($Password)
   }
   [PSCustomObject]ToPSObject() {
      $f = @{
         Username = $this.Username
         Password = $this.Password.EncryptedString
         Key = $this.Password.Key
      }
      return (New-Object -TypeName PSCustomObject -Property $f)
   }
   UnCredential([string]$Path) {
      $Data = Import-Clixml -Path $Path
      'Username', 'Password', 'Key' | ? { $_ -notin $Data.PSObject.Properties.Name } | %  { throw "XML in $Path missing property $_" }
      $this.Username = $Data.Username
      $this.Password = [UnSecureString]::new()
      $this.Password.EncryptedString = $Data.Password
      $this.Password.Key = $Data.Key
   }
   [void]Save([string]$Path) {
      $this.ToPSObject() | Export-Clixml $Path
   }
   [System.Management.Automation.PSCredential]ToPSCredential() {
      return (New-Object System.Management.Automation.PSCredential($this.Username, $this.Password.ToSecureString()))
   }
}