validate-server-certificate | Validate server certificate

validate-server-certificate is a C# library. validate-server-certificate has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

###1. Get Public Key from Server Certificate– We are getting data from following URL. It’s returning JSON data [{"RegistedDay":"Tuesday","SubscriberRegisted":4}, {"RegistedDay":"Tuesday","SubscriberRegisted":8}, {"RegistedDay":"Wednesday","SubscriberRegisted":10}, {"RegistedDay":"Friday","SubscriberRegisted":12}, {"RegistedDay":"Saturday","SubscriberRegisted":15}, {"RegistedDay":"Saturday","SubscriberRegisted":20} ] For getting Public key access URL into chrome browser, you will see screen like this. Click on lock icons it will show you permission screen. Go into “Connection” tab and then “Certificate Information” button. It will show you server certificate and its information and then click on “Details” tab. Select “All” from drop down and chose Public Key. It will show you Public key. Copy this Public Key and remove space between. Now we have Public key. ###2. Create RemoteCertificateValidationCallback Delegate - Create a RemoteCertificateValidationCallback delegate like this. When we doing certificate validation the sender parameter passed to the RemoteCertificateValidationCallback. // Set remote certificate callBack validation delegate ServicePointManager.ServerCertificateValidationCallback = ValidateServerCertificate;. ###3. Match Public Key and Server Certificate Public Key – In Callback we have sender, certificate, chain, and sslPolicyErrors. First we need to check certificate and any errors in certificate. If yes then return false. Otherwise we need to call GetPublicKeyString() method to get Public Key of certificate. And then match of both Public Key first one which we have and second one we got from certificate. If both Public Key will not match then method will be return false and you will got SSL/TLS exception. using System; using System.IO; using System.Net; using System.Text; using System.Net.Security; using System.Security.Cryptography; using System.Security.Cryptography.X509Certificates;. namespace ServerCertificateValidate { class ValidateCertificate { // public key of certificate private static String _PUBLICKEY = "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";. ###How to validate server certificate ###validate server certificate ###server certificate validation.