Where to check mysql authentication method

You can view the MySQL authentication method by using the query command SELECT plugin FROM mysql.user WHERE User = 'username'. The result will display one of the following authentication methods: mysql_native_password: use the traditional MySQL hash algorithm sha256_password: use SHA-256 algorithm caching_sha2_password: Use SHA-256 algorithm and caching mechanism to speed up verification mysql_old_password: Old version of MySQL authentication algorithm

How to view MySQL authentication method

The authentication method determines how MySQL users verify their identity when connecting to the database. Users can use a number of different authentication methods in MySQL depending on their needs. This article will guide you through MySQL authentication methods.

Steps

1. Connect to the MySQL database.

   Use the command mysql -u username -p to connect to the MySQL database, where username is your MySQL username, -p## The # flag requires you to enter a password.

2. Run the following query.

   <code class="sql">SELECT plugin FROM mysql.user WHERE User = 'username';</code>

   Replace

   username with the username of the user you want to check.

3. Interpret the results.

   The query results will display the authentication method used by the user. Possible authentication methods include:
   • mysql_native_password: Hashes the password using the MySQL native hashing algorithm.
   • sha256_password: Hashes the password using the SHA-256 algorithm.
   • caching_sha2_password: Hashes passwords using the SHA-256 algorithm and uses a caching mechanism to speed up the authentication process.
   • mysql_old_password: Use the old authentication algorithm prior to MySQL 5.7.

Example

If

username is myuser, the following query will display myuser Authentication method used:

<code class="sql">SELECT plugin FROM mysql.user WHERE User = 'myuser';</code>

The result will be similar to the following:

<code>+---------+
| plugin |
+---------+
| sha256_password |
+---------+</code>

This means

myuser used the SHA-256 algorithm for the password Perform hashing.

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