icinga-powershell-framework/lib/web/New-IcingaSSLStream.psm1

function New-IcingaSSLStream()
{
    param(
        [System.Net.Sockets.TcpClient]$Client                                 = @{},
        [Security.Cryptography.X509Certificates.X509Certificate2]$Certificate = $null
    );

    $SSLStream = New-Object System.Net.Security.SslStream($Client.GetStream(), $false)
    $SSLStream.AuthenticateAsServer($Certificate, $false, [System.Security.Authentication.SslProtocols]::Tls12, $true) | Out-Null;

    return $SSLStream;
}