SSL – Explained
You might have heard a term SSL when browsing the internet, or seen warnings when entered to a sites not protected by SSL. But what it is?
SSL comes from words Secure Sockets Layer, and it is basicly a protocol that provide secure communication over computer networks and links. It is also referred as TSL nowadays (Transport Layer Security).
SSL/TSL provides data encryption, integrity and authentication. When a page is using it, you can be sure:
- No one can see what you are reading
- No one has changed anything you have typed
- You are communicating directly with the webpage in question
All sites using SSL/TSL are signed with digital certificate, and the page address starts with https. Before entering a page like this, the browser will check that the certificate comes from a trusted party, certificate is valid and it is related to the webpage what you intend to visit.