Private/Get-Id.ps1
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function Get-Id { Param( [Parameter(Mandatory=$true)] [string]$Message, [Parameter(Mandatory=$false)] [ValidateSet('MD5','RIPEMD160','SHA1','SHA256','SHA384','SHA512')] [string]$HashName='MD5' ) #Get Hash of Message $Bytes = [System.Text.Encoding]::UTF8.GetBytes($Message) $Hash = ([System.Security.Cryptography.HashAlgorithm]::Create($HashName).ComputeHash($Bytes) -join '').ToString() $HashLength = $Hash.Length #Max event ID cannot be higher than 65535, which is uint16 max value $MaxIDValue = ([uint16]::MaxValue).ToString() $MaxIDValueLength = $MaxIDValue.Length #Loop through the number until we find a number lower than 65535 for ($i=0;$i -lt ($HashLength - $MaxIDValueLength);$i++) { $Output = $Hash.SubString($i,$MaxIDValueLength) if ($Output -lt $MaxIDValue) { return $Output } } } |