Listing and searching the Certificate Store

main.cs

using System;
using System.Security.Cryptography.X509Certificates;

namespace ListCertificates
{
    class Program
    {
        static void Main(string[] args)
        {
            var store = new X509Store(StoreName.My, StoreLocation.LocalMachine);

            store.Open(OpenFlags.ReadOnly);

            var certificates = store.Certificates;
            foreach (var certificate in certificates)
            {
                Console.WriteLine("Friendly Name: \t "+ certificate.FriendlyName);
                Console.WriteLine("Subject Name: \t"  + certificate.SubjectName.Name);
                Console.WriteLine("Subject: \t"+ certificate.Subject);
                Console.WriteLine("Serial Number : \t" + certificate.SerialNumber); 
            }

            string answer = String.Empty;
            do
            {
                Console.WriteLine("Would you to search for a cert?");
                answer = Console.ReadLine();

                if (answer.ToLower() == "yes")
                {

                    Console.WriteLine("Field?");
                    string f = Console.ReadLine();

                    Console.WriteLine("Value?");
                    string value = Console.ReadLine();

                    X509Certificate2Collection collection = null;

                    switch (f.ToLower())
                    {
                        case "serial":
                            collection = store.Certificates.Find(X509FindType.FindBySerialNumber, value, true);
                            break;

                        case "subjectname":
                            collection = store.Certificates.Find(X509FindType.FindBySubjectName, value, true);
                            break;

                    }

                    Console.WriteLine((collection == null ||  collection.Count > 0) ? "Found" : "Not Found");
                }
            } while (answer.ToLower() != "no");
            
            store.Close();

            Console.WriteLine("Press a key to continue.");
            Console.ReadLine();
        }
    }
}