Private/Utilities/Convert-EntraIDObjectIdToSid.ps1
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function Convert-EntraIDObjectIdToSid { <# .SYNOPSIS Convert an Azure AD Object ID to SID .DESCRIPTION Converts an Azure AD Object ID to a SID. Author: Oliver Kieselbach (oliverkieselbach.com) The script is provided "AS IS" with no warranties. .PARAMETER ObjectID The Object ID to convert #> param([String] $ObjectId) $bytes = [Guid]::Parse($ObjectId).ToByteArray() $array = New-Object 'UInt32[]' 4 [Buffer]::BlockCopy($bytes, 0, $array, 0, 16) $sid = "S-1-12-1-$array".Replace(' ', '-') return $sid } |