PSCertificateEnrollment

1.0.1

Functions/Get-CertificateHash.ps1

                                <#

    .SYNOPSIS

    Calculates the Hash Value for a given Byte Array

    The native GetCertHhash seems to work since .NET 4.8 which is not guaranteed to be present

    https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.x509certificates.x509certificate.getcerthash

#>

function Get-CertificateHash {

    [cmdletbinding()]

    param(

        [Parameter(Mandatory=$True)]

        [Byte[]]

        $Bytes,

        [Parameter(Mandatory=$False)]

        [String]

        [ValidateSet("MD5","SHA1","SHA256","SHA512")]

        $HashAlgorithm = "SHA1"

    )

    begin {}

    process {

        $HashString = ''

        $AlgorithmObject = [System.Security.Cryptography.HashAlgorithm]::Create($HashAlgorithm)

        $HashBytes = $AlgorithmObject.ComputeHash($Bytes)

        $HashBytes | ForEach-Object -Process { $HashString += $_.ToString("X") }

        return $HashString

    }

    end {}

}