VaultServer

1.0.0

Public/Check-Cert.ps1

                                <#

    .SYNOPSIS

        This function gets the SSL Certificate at the specified IP Address / Port

        and returns an System.Security.Cryptography.X509Certificates.X509Certificate2 object.

    .DESCRIPTION

        See .SYNOPSIS

    .NOTES

    .PARAMETER IPAddress

        This parameter is MANDATORY.

        This parameter takes a string that represents an IP Address.

    .PARAMETER Port

        This parameter is MANDATORY.

        This parameter takes an integer that represents a Port Number (443, 636, etc).

    .EXAMPLE

        # In the below example, 172.217.15.110 happens to be a google.com IP Address

        PS C:\Users\zeroadmin> Check-Cert -IPAddress 172.217.15.110 -Port 443

        Thumbprint                                Subject

        ----------                                -------

        8FBB134B2216D6C71CF4E4431ABD82182922AC7C  CN=*.google.com, O=Google Inc, L=Mountain View, S=California, C=US

#>

function Check-Cert {

    [CmdletBinding()]

    Param (

        [Parameter(Mandatory=$True)]

        [string]$IPAddress,

        [Parameter(Mandatory=$True)]

        [int]$Port

    )

    try {

        $TcpSocket = New-Object Net.Sockets.TcpClient($IPAddress,$Port)

        $tcpstream = $TcpSocket.GetStream()

        $Callback = {param($sender,$cert,$chain,$errors) return $true}

        $SSLStream = New-Object -TypeName System.Net.Security.SSLStream -ArgumentList @($tcpstream, $True, $Callback)

        try {

            $SSLStream.AuthenticateAsClient($IPAddress)

            $Certificate = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($SSLStream.RemoteCertificate)

        }

        finally {

            $SSLStream.Dispose()

        }

    }

    finally {

        $TCPSocket.Dispose()

    }

    $Certificate

}

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