Public/Invoke-IBMrotateBitLockerKeys.ps1
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function Invoke-IBMrotateBitLockerKeys { <# .SYNOPSIS Rotates the BitLocker encryption key for Windows devices managed by Intune. .DESCRIPTION The `Invoke-IBMrotateBitLockerKeys` function triggers a rotation of the BitLocker encryption key on Windows devices managed by Intune. You can specify devices individually using `DeviceId`, `GroupName`, `DeviceName`, or `OS`. Additionally, you can choose to rotate the BitLocker key for all devices or select specific devices/groups interactively. .NOTES Author: Florian Salzmann | @FlorianSLZ | https://scloud.work Version: 1.0 Date: 2024-08-01 #> param ( [parameter(Mandatory = $false, HelpMessage = "Specify the ID of the individual device to rotate the BitLocker key.")] [string]$DeviceId, [parameter(Mandatory = $false, HelpMessage = "Specify the name of the group that contains the devices for which to rotate the BitLocker key.")] [string]$GroupName, [parameter(Mandatory = $false, HelpMessage = "Specify the name of the individual device to rotate the BitLocker key.")] [string]$DeviceName, [parameter(Mandatory = $false, HelpMessage = "Specify the operating system of the devices to rotate the BitLocker key. For example, 'Windows'.")] [string]$OS, [parameter(Mandatory = $false, HelpMessage = "Rotate the BitLocker key for all Windows devices managed by Intune.")] [switch]$AllDevices, [parameter(Mandatory = $false, HelpMessage = "Interactively select specific devices to rotate the BitLocker key.")] [switch]$SelectDevices, [parameter(Mandatory = $false, HelpMessage = "Interactively select a specific group of devices to rotate the BitLocker key.")] [switch]$SelectGroup ) # Get device IDs based on provided criteria if($AllDevices){ $deviceIds = Get-IntuneDeviceIDs -OS "Windows" # cause its only supported for them ;) }elseif($SelectDevices){ $deviceIds = Get-IntuneDeviceIDs -SelectDevices }elseif($SelectGroup){ $deviceIds = Get-IntuneDeviceIDs -SelectGroup }else{ $deviceIds = Get-IntuneDeviceIDs -DeviceId $DeviceId -GroupName $GroupName -DeviceName $DeviceName -OS $OS } if (-not $deviceIds) { Write-Warning "No devices found based on the provided criteria." return } # rotate BitLocker Key for each device $counter = 0 foreach ($deviceId in $deviceIds) { $counter++ Write-Progress -Id 0 -Activity "Rotate BitLocker Key" -Status "Processing $($counter) of $($deviceIds.count)" -CurrentOperation $computer -PercentComplete (($counter/$deviceIds.Count) * 100) $uri = "https://graph.microsoft.com/v1.0/deviceManagement/managedDevices/$deviceId/rotateBitLockerKeys" try { $response = Invoke-MgGraphRequest -Method POST -Uri $uri Write-Verbose "BitLocker Key rotation triggered for device ID: $deviceId. $Response" } catch { Write-Output "An error occurred while rotating BitLocker Key for device ID: $deviceId. Error: $_" } } } |