Error
Error Code:
3202
MySQL Error 3202: Keyring Access Denied
Description
MySQL Error 3202 indicates that the database server denied access to an operation because the current user lacks the necessary privileges for the MySQL Keyring component. This error typically arises when attempting to manage encryption keys, encrypted tablespaces, or other sensitive data protected by the keyring.
Error Message
Access denied; you need %s privileges for this operation
Known Causes
3 known causesInsufficient User Privileges
The MySQL user attempting the operation does not have the required `KEYRING_ADMIN` or other specific keyring-related privileges.
Keyring Plugin Not Loaded
The MySQL Keyring plugin, which manages encryption keys and encrypted data, is not properly loaded or configured on the server.
Incorrect Keyring File Permissions
The underlying keyring data file (e.g., `keyring_file.json`) has incorrect filesystem permissions, preventing MySQL from accessing it.
Solutions
3 solutions available1. Grant Necessary Keyring Privileges to the User medium
Grant the specific keyring privileges required by the user that is encountering the error.
1
Identify the user and the specific keyring operation failing. The error message often indicates the required privilege (e.g., 'keyring_encrypt', 'keyring_decrypt').
2
Connect to your MySQL server as a user with sufficient administrative privileges (e.g., 'root').
3
Execute a `GRANT` statement to provide the missing privilege to the user. Replace `'username'@'hostname'` with the actual user and host, and `'keyring_privilege'` with the required privilege (e.g., `KEYRING_ENCRYPT`).
GRANT KEYRING_ENCRYPT ON *.* TO 'username'@'hostname';
FLUSH PRIVILEGES;4
If multiple keyring operations are failing, grant all necessary privileges. Common privileges include `KEYRING_ENCRYPT`, `KEYRING_DECRYPT`, `KEYRING_ERASE`, `KEYRING_CREATE`, `KEYRING_SHOW`.
GRANT KEYRING_ENCRYPT, KEYRING_DECRYPT, KEYRING_ERASE ON *.* TO 'username'@'hostname';
FLUSH PRIVILEGES;5
Have the user who encountered the error try the operation again.
2. Verify Keyring Plugin is Enabled and Configured medium
Ensure the MySQL keyring plugin is loaded and properly configured for the server.
1
Connect to your MySQL server as a user with administrative privileges.
2
Check if the keyring plugin is installed and enabled by querying the `information_schema.plugins` table.
SELECT PLUGIN_NAME, PLUGIN_STATUS FROM information_schema.plugins WHERE PLUGIN_NAME LIKE 'keyring%';3
If the plugin is not loaded or enabled, load it. The exact plugin name might vary (e.g., `keyring_file`, `keyring_vault`). Consult your MySQL documentation for the correct plugin name and how to load it. This often involves modifying the MySQL configuration file (`my.cnf` or `my.ini`).
4
Example of enabling `keyring_file` in the MySQL configuration file (e.g., `/etc/my.cnf` or `/etc/mysql/my.cnf`):
[mysqld]
keyring_file_data=/var/lib/mysql/keyring/keyring_data.dat5
After modifying the configuration file, restart the MySQL server for the changes to take effect.
sudo systemctl restart mysql6
Ensure the directory specified in the configuration (e.g., `/var/lib/mysql/keyring/`) exists and the MySQL user has write permissions to it.
sudo mkdir -p /var/lib/mysql/keyring/
sudo chown mysql:mysql /var/lib/mysql/keyring/3. Check MySQL User's Global Privileges for Keyring Operations easy
Review and adjust the global privileges of the user to ensure they have access to keyring functionalities.
1
Connect to your MySQL server as a user with administrative privileges.
2
View the current privileges for the user encountering the error. Replace `'username'@'hostname'` with the actual user and host.
SHOW GRANTS FOR 'username'@'hostname';3
Examine the output. If you don't see any explicit `KEYRING_*` privileges granted globally or on specific objects that the user is trying to access, this could be the cause.
4
If the user needs to perform general keyring operations, grant them broad keyring privileges.
GRANT ALL PRIVILEGES ON *.* TO 'username'@'hostname'; -- Use with caution, grants all privileges
-- Or more granularly:
GRANT KEYRING_ENCRYPT, KEYRING_DECRYPT ON *.* TO 'username'@'hostname';
FLUSH PRIVILEGES;5
If the user only needs to access specific encrypted data, ensure they have the necessary keyring privileges for the objects involved.