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• caching_sha2_password_private_key_path 

<img src='content_image/820125.jpg'>

This variable specifies the path name of the RSA private key file for the caching_sha2_password authentication plugin. If the file is named as a relative path, it is interpreted relative to the server data directory. The file must be in PEM format. 

<img src='content_image/820133.jpg'>

## Important 

Because this file stores a private key, its access mode should be restricted so that only the MySQL server can read it. 

For information about caching_sha2_password , see Section 6.4.1.2, “Caching SHA-2 Pluggable Authentication” . 

• caching_sha2_password_public_key_path 

<img src='content_image/820126.jpg'>

This variable specifies the path name of the RSA public key file for the caching_sha2_password authentication plugin. If the file is named as a relative path, it is interpreted relative to the server data directory. The file must be in PEM format. 

For information about caching_sha2_password , including information about how clients request the RSA public key, see Section 6.4.1.2, “Caching SHA-2 Pluggable Authentication” . 

• character_set_client 

<img src='content_image/820127.jpg'>

