cout << "\tCertificate:\n";
cout << "\t\tSubject: " << i.subject() << "\n";
cout << "\t\tSubject common name: " << i.subject_common_name() << "\n";
cout << "\tCertificate:\n";
cout << "\t\tSubject: " << i.subject() << "\n";
cout << "\t\tSubject common name: " << i.subject_common_name() << "\n";