Public/Convert-PlaintextToSecure.ps1
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<#
"Hello World" | Get-PlaintextToSecure | Get-SecureToPlaintext WARNUNG: No keyfile present at '.\aes.key'. Creating it now Hello World "Hello World" | Get-PlaintextToSecure 76492d1116743f0423413b16050a5345MgB8AHIATAAyADEAcwBiAGsATwBJAEgANQBFAEUAbwBsAHUANABWAE8AaQBtAEEAPQA9AHwAMQBmADMANAA0ADAAMAA2AGYANABmAGQAOQBmAGYAYwA4AGMAYQA0ADkAOQBjADcAZQA4ADEANgAxAGIANAAxADMANgBlADMANQAwADEAYgBiADEAZABkAGQAMgAzADAAMgA5AGQANQBmADgAMABkAGUANABmAGEANAAwAGMAMwA= Save this text into a variable like $t = "Hello World" | Get-PlaintextToSecure And decrypt it with $t | Get-SecureToPlaintext Hello World Please don't try to move the keyfile or the encrypted string to another machine. It uses a combination of AES encryption and SecureString, where the last one is dependent on the current machine or account. You can only decrypt the text on the same machine/account where you have encrypted it. If you don't provide a keyfile, it will be automatically generated with your first call of 'Get-PlaintextToSecure' #> Function Convert-PlaintextToSecure { <# .SYNOPSIS Converts a plaintext string to an encrypted string .DESCRIPTION This function converts a plaintext string back to an encrypted that can be saved e.g. in text files. It uses a secure string and a salt keyfile to make this happen. .PARAMETER String The string you want to encrypt .EXAMPLE Convert-PlaintextToSecure -String "Hello World" .EXAMPLE "Hello World" | Convert-PlaintextToSecure .INPUTS Decrypted String .OUTPUTS Encrypted String .NOTES Author: florian.von.bracht@apteco.de #> [cmdletbinding()] param( [Parameter(Mandatory=$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 ) { Create-KeyFile -Path $Script:keyfile -ByteLength 32 } } Process { $return = "" # generate salt $salt = Get-Content -Path $Script:keyfile -Encoding UTF8 # convert $stringSecure = ConvertTo-secureString -String $String -asplaintext -force $return = ConvertFrom-SecureString $stringSecure -Key $salt # return return $return } End { } } |