HiddenString.ps1
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class HiddenString { hidden [SecureString]$SecureString = [SecureString]::new() hidden [Bool]$SuppressWarnings hidden New([Object]$Object, [Bool]$SuppressWarnings) { $This.SuppressWarnings = $SuppressWarnings if ($Object -is [SecureString]) { $This.SecureString = $Object } elseif ($Object -is [HiddenString]) { $This.SecureString = $Object.SecureString } elseif ($Object -is [Byte[]]) { $String = [System.Text.StringBuilder]::new() foreach ($Byte in $Object) { $x2 = '{0:x2}' -f $Byte [void]$String.Append($x2) } $This.SecureString = ConvertTo-SecureString $String } elseif ($Object) { if (!$This.SuppressWarnings) { Write-Warning 'For better obscurity, use a hidden or secure string for input.' } $This.Add($Object) } } HiddenString() { $This.New($Null, $False) } HiddenString([Object]$Object) { $This.New($Object, $False) } HiddenString([Object]$Object, $SuppressWarnings) { $This.New($Object, $SuppressWarnings) } [Void]Add([Char[]]$Characters) { foreach ($Character in $Characters) { $This.SecureString.AppendChar($Character) } } [SecureString]ToSecureString() { return $This.SecureString } [String]Reveal(){ if (!$This.SuppressWarnings) { Write-Warning 'For better obscurity, use a secure string output.' } $Ptr = [System.Runtime.InteropServices.Marshal]::SecureStringToCoTaskMemUnicode($This.SecureString) $String = [System.Runtime.InteropServices.Marshal]::PtrToStringUni($Ptr) [System.Runtime.InteropServices.Marshal]::ZeroFreeCoTaskMemUnicode($Ptr) return $String } } |