(PowerShell) Socket TLS Mutual Authentication (Client-Side Certificate)

This example demonstrates how to provide a client-side certificate, also known as "two-way authentication" or "mutual authentication" for servers that require a client certificate.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$sock = New-Object Chilkat.Socket

# Set the certificate to be used for mutual TLS authentication
# (i.e. sets the client-side certificate for two-way TLS authentication)
$success = $sock.SetSslClientCertPfx("/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx","pfxPassword")
if ($success -ne $true) {
    $($sock.LastErrorText)
    exit
}

# Note: The certificate used for the client-side of TLS mutual authentication
# must have the associated private key available. (.pfx/.p12 files typically store both
# the certificate and associated private key.)

# Establish the connection using the socket object (with client certificate authentication).
$bTls = $true
$port = 443
$maxWaitMs = 5000
$success = $sock.Connect("www.example.com",$port,$bTls,$maxWaitMs)
if ($success -ne $true) {
    $("Connect Failure Error Code: " + $sock.ConnectFailReason)
    $($sock.LastErrorText)
    exit
}

# At this point, the Socket object is connected and authenticated using the client-side cert

# ...
# ..