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Let's talk about how to encrypt mysql. The secret of the text is that it is close to the topic. So, no more gossip, let's go straight to the following, I believe you will benefit from reading this article on how to encrypt mysql.

By encrypting the data of the Mysql database, we can make the database more secure, and the information data inside will not be easily cracked.

MySQL specially designed some functions to encrypt the data. The following functions are briefly introduced here.

(1) AES_ENCRYPT and AES_DECRYPT functions

The syntax format is: aes_encrypt aes_decrypt (str,key)

The AES_ENCRYPT function returns the result of the key key encrypting the string str using the Advanced encryption Standard (AES) algorithm, which is a binary string stored as BLOB. The AES_DECRYPT function is used to decrypt data encrypted with advanced encryption methods. If invalid data or incorrect padding is detected, the function returns NULL. The AES_ENCRYPT and AES_DECRYPT functions can be seen as the most secure encryption functions commonly used in MySQL.

(2) ENCODE and DECODE functions

Syntax format is: encode | deCODE (str,key)

The ENCODE function is used to encrypt a string str, and the result returned is a binary string stored as BLOB. The DECODE function decrypts the encrypted value with the correct key. Compared with the AES_ENCRYPT and AES_DECRYPT functions above, these two functions are relatively weakly encrypted.

(3) ENCRYPT function

Using the UNIX crypt () system to encrypt the string, the encrypt (str,salt) function receives the string to be encrypted and the salt used for the encryption process (a string that determines a unique password). Not available on Windows.

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