DBCA - useWalletForDBCredentials 19c

You can use Oracle wallet as a secure external password store for authenticating database users in DBCA silent mode commands. Oracle wallet is a secure software container external to Oracle Database, which can be used to store authentication credentials of Oracle Database users.
The configuration of the Oracle wallet as a secure external password store will be done by the mkstore command-line utility.

Database User Authentication in DBCA Commands Using Oracle Wallet

• useWalletForDBCredentials
  Specify true to use Oracle wallet for database user authentication, else specify false.
  Default is false.
• dbCredentialsWalletLocation
  Directory in which the Oracle wallet files are stored
• (Optional) dbCredentialsWalletPasswordPassword for the Oracle wallet account user. If the Oracle wallet is auto-login enabled, then you need not specify this password