Shulou(Shulou.com)06/03 Report--

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

Https encryption has become the trend of Internet development in the future. We can see one or two from the large Internet companies at home and abroad that have enabled https. Https encryption has three main functions: the first is to confirm the authenticity of the website through certificates and other information; the second is to establish encrypted information channels; the third is the integrity of data content. The following is the parsing of https encryption, let's take a look.

First of all, https is always very safe. This is because the https certificate belongs to the SSL certificate and uses a very secure encryption calculation method. The encryption principle of https is that public key encryption uses a pair of asymmetric keys. One is called the private key, and the other is called the public key, the former can only be used by oneself, and the public key can be released at will, and anyone can get it. If the public key is encrypted, the encryption of the information is very guaranteed, and after receiving the encrypted message, the other party uses his own private key to decrypt it.

Encryption algorithm:

According to records, in 400 BC, the ancient Greeks invented the replacement cipher; during the second World War, the German military used the "Enigma" password machine, so cryptography has a wide range of applications in social development.

Symmetrical encryption

There are two kinds of streaming and grouping, and both encryption and decryption use the same key. For example: DES, AES-GCM, ChaCha20-Poly1305, etc.

Asymmetric encryption

The key used in encryption is different from that used in decryption, which is called public key, private key, public key and algorithm, and private key is secret. The performance of asymmetric encryption algorithm is low, but the security is super. Because of its encryption characteristics, the data length that asymmetric encryption algorithm can encrypt is limited. For example: RSA, DSA, ECDSA, DH, ECDHE.

Hash algorithm

The arbitrary length of information is converted into a shorter fixed-length value, which is usually much smaller than the information, and the algorithm is irreversible. For example: MD5, SHA-1, SHA-2, SHA-256, etc.

Digital signature

A signature is to add a piece of content to the end of the message (the value of the message after hash) to prove that the information has not been modified. The hash value is usually encrypted (that is, signed) and then sent with the message to ensure that the hash value is not modified.

So in this way, there is no need to worry about disclosure at all, and there is no need to worry about the key being eavesdropped by the attacker and stolen. So this is the process of https encryption, it can be seen that the security of https encryption is very high. The biggest function of https encryption is to ensure the security of the data transmission of the website. Thus, the privacy of website users can be guaranteed, so the security of the website can be greatly improved. Under the security encryption of https, the data transmitted to the server, such as user name and password, are encrypted and can not be stolen and tampered with. It is often used in banks, e-commerce websites and so on.

It can be seen that the role of https encryption technology for the safe operation of the website is very helpful. Today, with the rapid development of the Internet, network security is particularly important, which is the reason why https encryption technology is widely used.

At this point, the study on "what is the role of https encryption" 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!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.