Public/Convert-PlaintextToSecure.ps1
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Function Convert-PlaintextToSecure { <# .SYNOPSIS Converts a plaintext string to an encrypted string .DESCRIPTION This function converts a plaintext string back to an encrypted that can be saved e.g. in text files. It uses a secure string and a salt keyfile to make this happen. .PARAMETER String The string you want to encrypt .EXAMPLE Convert-PlaintextToSecure -String "Hello World" .EXAMPLE "Hello World" | Convert-PlaintextToSecure .INPUTS Decrypted String .OUTPUTS Encrypted String .NOTES Author: florian.von.bracht@apteco.de #> [cmdletbinding()] param( [Parameter(Mandatory=$true,ValueFromPipeline)][String]$String #,[Parameter(Mandatory=$false)][String]$KeyfilePath = ".\aes.key" ) Begin { # Use the default keyfile, if not loaded yet If ( $null -eq $Script:keyfile ) { $Script:keyfile = $Script:defaultKeyfile } # Create the file, if not existing yet If ( (Test-Path -Path $Script:keyfile) -eq $false ) { New-KeyFile -Path $Script:keyfile -ByteLength 32 } } Process { $return = "" # read key bytes (handles both binary and legacy text format) $salt = Read-Keyfile -Path $Script:keyfile # convert $stringSecure = ConvertTo-secureString -String $String -asplaintext -force $return = ConvertFrom-SecureString $stringSecure -Key $salt # return return $return } End { } } |