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This article mainly introduces "what protocol is used for web message transmission". In daily operation, I believe that many people have doubts about what protocol web message transmission uses. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "what protocol is used for web message transmission?" Next, please follow the editor to study!

Web uses the "HTTP" or "HTTPS" protocols for information transmission. HTTP protocol specifies what kind of message and response the client may send to the server, while HTTPS protocol is a security-oriented HTTP channel, which ensures the security of the transmission process through transmission encryption and identity authentication on the basis of HTTP.

The operating environment of this tutorial: windows10 system, Dell G3 computer.

Web uses the "HTTP" or "HTTPS" protocols for information transmission.

HTTP

Hypertext transfer Protocol (Hypertext Transfer Protocol,HTTP) is a simple request-response protocol that usually runs on top of TCP. It specifies what kind of message the client might send to the server and what kind of response it gets. The headers of the request and response messages are given in ASCII form; the message content has a MIME-like format. This simple model was instrumental in the success of early Web because it made development and deployment very straightforward.

Disadvantages of HTTP:

Although HTTP is widely used, it has many security defects, mainly due to its lack of plaintext transmission and message integrity testing, which are exactly the most important security concerns in emerging applications such as network payment and network transactions.

With regard to the plaintext data transmission of HTTP, the most commonly used attack method of attackers is network sniffing, trying to analyze sensitive data from the transmission process, such as the administrator's login process to the background of the Web program, etc., so as to obtain website management rights, and then infiltrate the permissions of the entire server. Even if the background login information can not be obtained, the attacker can also obtain the secret information of ordinary users from the network, including mobile phone number, ID card number, credit card number and other important information, resulting in serious security accidents. Network sniffing attacks are very simple and require very low requirements for attackers. Using any package grabbing tool published on the network, a novice may get the user information of a large website.

In addition, when HTTP transmits client requests and server responses, the only data integrity check is that the length of the transmitted data is included in the header of the message without confirming whether the content has been tampered with. Therefore, attackers can easily launch man-in-the-middle attacks, modify the data transmitted by the client and the server, and even insert malicious code into the transmitted data, resulting in the client being directed to malicious websites and implanted into Trojans.

HTTPS

HTTPS (full name: Hyper Text Transfer Protocol over SecureSocket Layer) is a HTTP channel with the goal of security, which ensures the security of the transmission process through transmission encryption and identity authentication on the basis of HTTP. The security foundation for HTTPS to join SSL,HTTPS on the basis of HTTP is SSL, so the details of encryption need SSL. HTTPS has a default port different from HTTP and an encryption / authentication layer (between HTTP and TCP). This system provides authentication and encrypted communication methods. It is widely used in security-sensitive communications on the World wide Web, such as transaction payment and so on.

HTTPS protocol is a network protocol constructed by HTTP and TLS/SSL protocol, which can carry out encrypted transmission and identity authentication. It mainly completes the encryption of Internet data transmission through digital certificate, encryption algorithm, asymmetric key and other technologies to achieve Internet transmission security protection. There are three main design goals.

(1) data confidentiality: ensure that the data content will not be viewed by a third party in the process of transmission. Just like couriers deliver parcels, they are encapsulated and others cannot know what is inside.

(2) data integrity: timely discovery of transmission content tampered by a third party. For example, although the courier does not know what is in the package, he may drop the package midway. Data integrity means that if the package is swapped, we can easily find it and reject it.

(3) identity verification security: to ensure that the data reaches the desired destination. Just like when we mail a package, although it is a packaged package, but we must make sure that the package will not be sent to the wrong place, through identification to ensure that it is delivered in the right place.

At this point, the study on "what protocol to use for web message transmission" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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