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This article mainly introduces which are the SSL certificate files, the article is very detailed, has a certain reference value, interested friends must read it!

SSL is the most commonly used network system encryption method among our netizens, which is derived from the abbreviation of Secure Socket Layer. SSL encryption authentication includes the use of a public key and a private key, we users all use a public key to encrypt data, decryption information needs to use the corresponding private key. These are all corresponding, not only the need for information confidentiality. But also to maximize the protection of Internet consumers' consumer information, personal information, confidential information and so on.

SSL certificate files are generally configured in the information terminal, usually with .key, .csr, .crt, .pem and other different suffixes, which can be judged at a glance by professional and technical personnel. the suffix is generally used by Internet systems to judge the type of ssl certificate files, and Linux does not use suffixes to judge the names of ssl certificate files, but because of the current Internet convention. We usually add these suffixes.

The following is the role of ssl certificate files with different suffixes:

1. Key file: belongs to the key file, including the private key of the SSL certificate. Is the hub of information content.

2. .csr file: the file includes the public key of the certificate and some important secret information within the company. Only after the user requests a signature can the certificate be generated directly.

3. .crt file: this document also contains the public key of the ssl certificate, the signature message, and the information that accompanies different authentication according to different types. Usually, all kinds of signature certificates will be included in such documents, such as IP, etc.

4. .pem file: this file is less common than other suffix files and contains the private key of the certificate and other important information about the certificate.

The above are all the contents of the SSL certificate file, 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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