Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

VB.NET UWP/WinRT Examples

Web API Categories

ASN.1
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Azure Cloud Storage
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(VB.NET UWP/WinRT) Examine Client Certificates for an Accepted TLS Connection

Demonstrates how to access the client certificates for a TLS connection accepted by your application acting as the server.

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 listenSslSocket As New Chilkat.Socket

' An SSL/TLS server needs a digital certificate.  This example loads it from a PFX file.
' This is the server's certificate.

Dim cert As New Chilkat.Cert
Dim success As Boolean = cert.LoadPfxFile("qa_data/serverCert/myServerCert.pfx","pfx_password")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If


' To accept client client certificates in the TLS handshake,
' we must indicate a list of acceptable client certificate root CA DN's
' that are allowed.  (DN is an acronym for Distinguished Name.)
' Call AddSslAcceptableClientCaDn once for each acceptable CA DN.
' Here are a few examples so you can see the general format of a DN.
listenSslSocket.AddSslAcceptableClientCaDn("C=SE, O=AddTrust AB, OU=AddTrust External TTP Network, CN=AddTrust External CA Root")
listenSslSocket.AddSslAcceptableClientCaDn("O=Digital Signature Trust Co., CN=DST Root CA X3")

' Initialize with our server's TLS certificate.
success = listenSslSocket.InitSslServer(cert)
If (success <> True) Then
    Debug.WriteLine(listenSslSocket.LastErrorText)
    Exit Sub
End If


' Bind and listen on a port:
Dim myPort As Integer = 8123
' Allow for a max of 5 queued connect requests.
Dim backLog As Integer = 5
success = Await listenSslSocket.BindAndListenAsync(myPort,backLog)
If (success <> True) Then
    Debug.WriteLine(listenSslSocket.LastErrorText)
    Exit Sub
End If



' Accept the next incoming connection.
Dim maxWaitMillisec As Integer = 20000
Dim clientSock As Chilkat.Socket = Await listenSslSocket.AcceptNextConnectionAsync(maxWaitMillisec)
If (listenSslSocket.LastMethodSuccess = False) Then
    Debug.WriteLine(listenSslSocket.LastErrorText)
    Exit Sub
End If


' Examine the client certs chain.  The 1st cert will be the client certificate, and
' the subsequent certs will be the certs in the chain of authentication.
Dim numClientCerts As Integer = clientSock.NumReceivedClientCerts
Debug.WriteLine("numClientCerts = " & numClientCerts)

Dim i As Integer = 0
While i < numClientCerts
    Dim clientCert As Chilkat.Cert = clientSock.GetReceivedClientCert(i)
    Debug.WriteLine(clientCert.SubjectDN)

    i = i + 1
End While



' Close the connection with the client
success = Await clientSock.CloseAsync(1000)



 

© 2000-2022 Chilkat Software, Inc. All Rights Reserved.