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Editor to share with you how to encrypt the ssl certificate. I hope you will gain a lot after reading this article. Let's discuss it together.

SSL certificate is a necessary ca certificate for HTTP plaintext agreement to upgrade HTTPS encryption protocol. The ssl certificate mainly realizes the security of the website and its users through https encryption. So, do you know what ssl certificate encryption methods are? Let's take a look.

What are the encryption methods of ssl certificate

Ssl certificate encryption method 1.Base64-bit data encryption (can be encrypted and decrypted)

A very simple encryption algorithm, without a key. If this kind of method allows others to keep your secret, it can be deciphered immediately. It can only be used for hoodwinking. In general, it is not used independently. Because it is really not useful, it can be mixed with other encryption algorithms as an external packaging.

Ssl certificate encryption 2.MD5 data encryption (data encryption irreversibility)

The full name of MD5 is Message-Digest Algorithm 5 (information content-introduction optimization algorithm). 128-bit length. At present, MD5 is an irreversible optimization algorithm. Has a high degree of safety. It matches all character arrays that can be encrypted into a unique fixed-length encoding. (tip: why is MD5 encryption technology irreversible? if there is an encryption algorithm, there will be a way to decipher it. Because MD5 data encryption has a kind of harmful encryption algorithm, for example, a section of statistical data is' 123'. When I was still encrypting the data, 1 and 3 were immediately regarded as a, and after the data was encrypted, it became 'a2a'. Therefore, at that time, there were four kinds of '323', '123', '123', 321', and nature could not find the initial statistical data. Perhaps the secrecy of this kind of data encryption does not need to be deciphered, and if necessary, it can be sent to the initial secrecy immediately ~ only the original content can not be seen.

Ssl certificate encryption 3.sha1 data encryption (data encryption irreversibility)

The full name of SHA1 is Secure Hash Algorithm (secure hashing algorithm). SHA1 according to MD5, the length of the encrypted statistical data is longer. It types with a length less than 264, resulting in a hash of length 160bit. 32 bits more than MD5. Therefore, it is more secure than MD5, but the sum operation speed of SHA1 is slower than that of MD5. The instructions are actually the same as MD5.

Ssl certificate encryption method 4.AES data encryption (key is required to decipher)

AES data encryption is symmetrical key data encryption, data encryption and decoding are all using the same decoding standard. The whole process of AES data encryption runs on a 4 × 4 byte vector, which is also called "state". Because keys and data encryption blocks have to be iteratively updated, replaced, and composed several times on the vector, there are often certain regulations on the speed of data encryption and the number of bytes of the key. The AES key length is at least 128,192,256, and the sort length of the data encryption block is 128 bits. This kind of data encryption has a big disadvantage: the tenderer must inform the contractor of the data encryption standard, otherwise it cannot be deciphered. Storing and transmitting keys becomes the biggest headache.

Ssl certificate encryption 5.RSA data encryption (public key data encryption, private key deciphering)

This is the most critical encryption technology at this stage! The foundation of computer communication security ensures that data encryption statistics are not easy to decipher. Can you imagine the adverse effects of overdraft card transactions being deciphered? Party An and Party B communicate, the contractor converts into the public key and the private key, the tenderer obtains the public key and encrypts the data (the public key is published and everyone can obtain it), and the tenderer encrypts the information content with the public key. At this time, the information content after data encryption can only be deciphered by the private key, so if the private key is not disclosed, the security factor of the information content can be ensured.

The basic principle of SSL Certificate Security Verification

Security socket layer (SSL) technology encrypts the content of information and presents authentication to maintain the security of the website. An SSL certificate contains a public key and a private key. The public key is used to encrypt the information content, and the private key is used to decode the information content encrypted by the data online. When a computer browser is biased towards a security domain, SSL determines the web server and mobile client, and establishes an encryption algorithm and a unique session key. They can initiate a secure session that ensures the privacy and consistency of the information.

1. The computer browser pleads for a secure connection with the website

two。 The server sends a copy of the SSL certificate to the computer browser

3. The computer browser checks the certificate to ensure that:

The certificate is signed by a trusted CA

The certificate is reasonable-not expired or revoked

The certificate determines the important length and the testing standards required by other new projects.

The domain enumerated on the certificate is paired with the domain requested by the customer.

4. When the computer browser determines that the URL can be trusted, it establishes a symmetrical session key and uses the public key in the URL certificate to encrypt the data. The session key is then sent to the Web network server.

The 5.Web network server uses its private key to decipher the symmetric session key.

6. The network server sends back the determination of data encryption with the session key to start the data encryption session.

After reading this article, I believe you have a certain understanding of how ssl certificates are encrypted. You want to know more about it. Welcome to follow the industry information channel. Thank you for your reading!

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