Pass PIN

Hcs.Broker/Client.cs

@@ -3,6 +3,7 @@ using Hcs.Broker.Api;
 using Hcs.Broker.Internal;
 using Hcs.Broker.Logger;
 using Hcs.Broker.MessageCapturer;
+using System.Security;
 using System.Security.Cryptography.X509Certificates;
 
 namespace Hcs.Broker
@@ -65,15 +66,25 @@ namespace Hcs.Broker
         /// <summary>
         /// Сертификат клиента для применения при формировании запросов
         /// </summary>
-        internal CpX509Certificate2 Certificate { get; set; }
+        internal CpX509Certificate2 Certificate { get; private set; }
 
-        public void SetSigningCertificate(string serialNumber)
+        internal SecureString CertificatePin { get; private set; }
+
+        public void SetSigningCertificate(string serialNumber, string? pin = null)
         {
             using var store = new CpX509Store(StoreName.My, StoreLocation.CurrentUser);
             store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
 
             var cert = store.Certificates.Find(X509FindType.FindBySerialNumber, serialNumber, false)[0];
             Certificate = cert ?? throw new ArgumentNullException("Certificate not found");
+
+            pin ??= Constants.DEFAULT_CERTIFICATE_PIN;
+
+            CertificatePin = new SecureString();
+            foreach (var character in pin)
+            {
+                CertificatePin.AppendChar(character);
+            }
         }
 
         internal string ComposeEndpointUri(string endpointName)