There are two core components of the Identity System. The first is the Identity Registrar which signs certificates & is the first layer of protection for the network. The Identity Registrar validates and keeps a record of active certificates on the network. The other component is Identity Certificates which is like a passport and a form of identification on the Internet. Your Identity Certificate allows you to instantly signup, login, and or purchase an item. It also removes the need to create a username or password. Using keypairs instead of a traditional username and password relies on cryptography for enhanced privacy and security. Sentivate keypairs act as your identity for the internet.