In today's information and digital era, with the continuous development of the Internet, we often hear the terms HTTP and HTTPS. They are both protocols related to network communication, but do you know the subtle relationship between them? ?

Let’s discuss the difference between HTTP and HTTPS.

1: Understand the concepts of HTTPS and HTTP:

HTTPS: (full name: Hyper Text Transfer Protocol over SecureSocket Layer) is a hypertext transfer security protocol. It is an HTTP channel aimed at security. Based on HTTP, it ensures the security of the transmission process through transmission encryption and identity authentication. HTTPS adds an SSL layer to HTTP. The security foundation of HTTPS is SSL, so the details of encryption require SSL. HTTPS has a different default port than HTTP and an encryption/authentication layer (between HTTP and TCP). This system provides authentication and encrypted communication methods. It is widely used for security-sensitive communications on the World Wide Web, such as transaction payments.

HTTP: (full name: Hyper Text Transfer Protocol) is an application layer protocol used to transmit hypertext (such as web pages) on the Internet. It is designed to transmit and receive data. When you use a web browser (such as Google Chrome or Mozilla Firefox) to request a web page, your browser sends an HTTP request to the server. After receiving this request, the server will return the web page you requested. This process is the main application of the HTTP protocol.

2:The differences between HTTP and HTTPS are mainly reflected in the following aspects:

• Protocol nature: HTTP is a hypertext transfer protocol, while HTTPS is a secure SSL encrypted transfer protocol.

• Information transmission: In HTTP, information is transmitted in plain text, while the HTTPS protocol encrypts information through SSL encryption technology to ensure the security of the information.

• Connection method: HTTP and HTTPS use completely different connection methods, and the ports are also different. The HTTP connection is stateless, that is, each request is independent, and the connection between the front and back ends is not maintained; while the HTTPS protocol is a network protocol built from the SSL+HTTP protocol that can perform encrypted transmission and identity authentication, and is highly secure. Higher than the HTTP protocol.

• Certificate and fee: The HTTPS protocol requires applying for a certificate from the CA. Generally, there are fewer free certificates, so a certain fee is required.