HTTPS





HTTPS is the encrypted version of HTTP. Instead of using plain-text socket
communication, HTTPS encrypts the session data using either a version of SSL
(Secure Socket Layer) or TLS (Transport Layer Security) the
IETF-standardized successor to SSL, thus ensuring reasonable protection from
eaves-droppers, and man in the middle attacks.

Its default TCP/IP port is 443.

Of course the level of protection depends on the correctness of the
implementation by the web browser, and the server software; and the actual
symmetric and asymmetric encryption algorithms and hash algorithms supported.