MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6
MySQL Enterprise Data Masking and De-Identification is based on a plugin library that implements these elements:
A server-side plugin named data_masking.
A set of user-defined functions (UDFs) provides an SQL-level
API for performing masking and de-identification operations.
Some of these functions require the
SUPER privilege.