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This article mainly introduces the principle of https certificate generation, the sample code in the article is very detailed, has a certain reference value, interested friends must read it!

What is a HTTPS certificate

HTTPS certificate, also known as SSL certificate, is a digital certificate deployed in the Web server. Web servers that deploy HTTPS certificates can provide secure and reliable HTTPS services. Users can use HTTPS protocol to visit Web website, which can achieve the effect of encrypted data transmission and ensure the security of user information transmission.

HTTPS certificate generation process

HTTPS certificate is actually a digital certificate, and the core of digital certificate is asymmetric encryption algorithm. HTTPS certificates can only be issued by a trusted CA authority. The user first generates a pair of public and private keys used for encryption and decryption, and then the user sends the public key and personal identity information for encryption to the CA institution, and the CA institution issues the HTTPS certificate according to the user's public key and personal information. After users get the HTTPS certificate from the CA institution, they deploy the HTTPS certificate and their private key in the web server, so that the Web server can provide HTTPS services. This is the whole process of producing HTTPS certificates.

When users visit your website using HTTPS protocol, they will first get the HTTPS certificate from your server, and then when the user transmits data to the Web server, because the HTTPS certificate already contains the public key, it actually uses the public key in the certificate to encrypt the transmitted data, and then sends the ciphertext to the Web server.

After getting the ciphertext, the Web server uses the private key to decrypt the ciphertext, and finally gets the original information of the user. Since the private key used for decryption is in the hands of the user from beginning to end, it will not be obtained by a third party, so the ciphertext information cannot be cracked, so websites that use HTTPS certificates are considered to be secure and reliable (but only if the private key is not disclosed).

Can you generate your own HTTPS certificate?

Technically, it is possible to generate your own HTTPS certificate, but your own HTTPS certificate cannot be used. Because browsers will only recognize certificates issued by trusted CA, HTTPS certificate browsers signed by other individuals will not, and will always display a security warning that "this site is not secure". So don't try to generate the HTTPS certificate yourself. If you need a HTTPS certificate, we will go to a trusted CA institution to apply for it.

How to apply for a HTTPS certificate

In fact, there are many HTTPS certificate agencies in China, they will represent some international well-known brands of HTTPS certificates, these well-known brands are trusted CA institutions, the HTTPS certificate issued by them can absolutely rest assured to use, this website is also one of many agents, you can consult our customer service personnel to apply.

When applying for a HTTPS certificate, you generally need to verify your website domain name and your corporate identity information. You need to provide relevant information about the company (such as business license, contact number, etc.), and then wait for the CA agency to review. After passing the audit, you can get the HTTPS certificate. During the whole application process, the agency will assist you in the preparation of materials and the issuance and deployment of certificates. Click to learn all the brands of HTTPS certificates on this site.

The above is what the principle of https certificate generation is all the content, thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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