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(VB.NET UWP/WinRT) SSL Client Certificate

Demonstrates how to connect to an SSL server using a client-side certificate, send a simple message, receive a simple response, and disconnect.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

Dim socket As New Chilkat.Socket

' Create an instance of a certificate store object, load a PFX file,
' locate the certificate we need, and use it for signing.
' (a PFX file may contain more than one certificate.)
Dim certStore As New Chilkat.CertStore
' The 1st argument is the filename, the 2nd arg is the 
' PFX file's password:
Dim success As Boolean = certStore.LoadPfxFile("chilkat_secret.pfx","secret")
If (success <> True) Then
    Debug.WriteLine(certStore.LastErrorText)
    Exit Sub
End If


Dim cert As Chilkat.Cert
cert = certStore.FindCertBySubjectCN("Chilkat Software, Inc.")
If (certStore.LastMethodSuccess = False) Then
    Debug.WriteLine(certStore.LastErrorText)
    Exit Sub
End If


success = socket.SetSslClientCert(cert)

Dim ssl As Boolean = True
Dim maxWaitMillisec As Integer = 20000

' The SSL server hostname may be an IP address, a domain name,
' or "localhost".  You'll need to change this:
Dim sslServerHost As String
sslServerHost = "123.123.88.88"
Dim sslServerPort As Integer = 8123

' Connect to the SSL server:
success = Await socket.ConnectAsync(sslServerHost,sslServerPort,ssl,maxWaitMillisec)
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


' Set maximum timeouts for reading an writing (in millisec)
socket.MaxReadIdleMs = 20000
socket.MaxSendIdleMs = 20000

' Send a "Hello Server! -EOM-" message:
success = Await socket.SendStringAsync("Hello Server! -EOM-")
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


' The server (in this example) is going to send a "Hello Client! -EOM-" 
' message.  Read it:
Dim receivedMsg As String = Await socket.ReceiveUntilMatchAsync("-EOM-")
If (socket.LastMethodSuccess <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


' Close the connection with the server
' Wait a max of 20 seconds (20000 millsec)
success = Await socket.CloseAsync(20000)

Debug.WriteLine(receivedMsg)

 

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