X.509 Certificate Repository

X509CertificateRepository.cs

public class X509CertificateRepository {
 public IEnumerable<X509Certificate2> FindBySubjectName(StoreName storeName, StoreLocation storeLocation, string subject) {
  var store = new X509Store(storeName, storeLocation);
  store.Open(OpenFlags.ReadOnly);
  var certificates = store.Certificates.Find(X509FindType.FindBySubjectName, subject, validOnly: false);
  foreach (var certificate in certificates) {
   yield return certificate;
  }
  store.Close();
 }
}