https

Hyper transfer protocol secure is combination of hyper text transfer protocol. This protocol is often used for payment transaction on the world wide web. HTTPS is a secure mode, thats why when you type in your bank details on the internet you see HTTPS at the top, which means that it is in a secure mode where as HTTP is unsecure.

To prepare a web server to accept HTTPS connections, the administrator must create a public key certificate for the web server. This certificate must be signed by a trusted certificate authority for the web browser to accept it without warning. The authority certifies that the certificate holder is the operator of the web server that presents it. Web browsers are generally distributed with a list of signing certificates of major certificate authorities so that they can verify certificates signed by them.

The effectiveness of HTTPS can be limited by poor implementation of browser or server software or a lack of support for some algorithms. Furthermore, although HTTPS secures data as it travels between the server and the client, once the data is decrypted at its destination, it is only as secure as the host computer.