Shibboleth is a software program that helps keep your online activities secure. It's like a secret password that computers use to make sure that only the right people can access certain websites or information.
When you try to access a website or online service, your computer sends a request to the server that hosts that site. The server then checks to make sure that you have permission to access that site. If you do, then you are allowed in. But if you don't have permission, you'll be denied access.
Shibboleth is like a special code that helps the server recognize you as someone who has permission to access the site. It works by using something called a "digital certificate." This certificate contains information about you, such as your name and other details, that the server can use to verify your identity.
So, when you log in to a website or online service that uses Shibboleth, your computer sends your digital certificate to the server, along with a request to access the site. The server then looks at your certificate and verifies that it's really you. If everything checks out, you're allowed in, and you can access the site or service.
Shibboleth is often used by universities, research organizations, and other groups that need to keep their online resources secure. It helps protect sensitive information from unauthorized access, and it ensures that only the people who are supposed to be accessing those resources are able to do so.