HTTP VS HTTPS

HTTP
HTTP stands for hyper text transfer protocol.

It's a protocol for communication over a computer network which was widely used on the internet but now many of them are using HTTPS

HTTPS stands for HTTP over SSL
HTTPS is more secured than HTTP.

*HTTPS consist of communication over HTTP within a connection encrypted by TLS or its predecessor,secure socket layer(SSL)
*The main motivation for HTTPS is authentication of the visited website and protection of the privacy and integrity of the exchanged data.
*In its popular deployment on the internet,HTTPS provides authentication of the website and associated web server with which one is communication which protects against man-in the-middle attacks.

Additionaly it provides bidirectional encryption of communications between a client and server which protects against tampering with or forging the contents of the communication.
*It is ensuring that the contents of communication  between the user and site can't be read or forged by any third party.

Historically ,HTTPS connections were primarily used for payment on WWW,E-MAIL and for sensitive transactions in corporate information systems.

SERVER SET UP
To accept HTTPS connection the administrator must create a Public Key Certificate for web server and this certificate must be signed by a trusted Certificate Authority.