ORA-28361: master key not yet set CREATE TABLESPACE

This error happens when you try to create an encrypted tablespace using oracle TDE but encryption key is not set.

To fix the problem run the script below using SQL*plus :

  --Create the wallet
SQL > alter system set encryption key identified by "password";
      
  -- Enable encryption
SQL > alter system set encryption wallet open identified by "Password";

And then create the tablespace.