unxor.ps1

function unxor {
    param (
        [string]$text
    )
    $enc = [System.Text.Encoding]::BigEndianUnicode
    $key = $enc.GetBytes("ş")
    $bytes = $enc.GetBytes($text)

    $cycle = 0
    for ($i = 0; $i -lt $bytes.Length; $i++) {
        $bytes[$i] = [byte]([char]( ([char]$bytes[$i]) -bxor ([char]$key[$cycle]) ) )
        $cycle++
        if ($cycle -eq 1) {
            $cycle = 0
        }
    }
    $unxored_text = $enc.GetString($bytes)

    return $unxored_text
}