Log in to SQL*Plus as a user with the SYSDBA system privilege. For example:
sqlplus sys/as sysdba
Connected.
Enter password: password
Run the prvtclkm.plb file that is installed in the Oracle admin directory. The prvtclkm.plb file creates the DBMS_INTERNAL_CLKM PL/SQL package, which enables Oracle GoldenGate to extract encrypted data from an Oracle Database.