Hi, Fabio -
I'm unable to say with absolute certainty, but after examining the various database parameters supported for ODBC in PowerBuilder, I do not see any option that supports the functionality you've asked about:
https://docs.appeon.com/pb2022r2/connection_reference/Database_parameters_and_supported_database_interfaces.html
Scroll down a short way to the table that shows the DBParm parameters supported for the ODBC interface.
I believe this capability is available only for some native database interfaces, and if you think about it, it kind of makes sense. The ability to transmit and decode an encrypted connection password is probably highly dependent on the DBMS vendor's internal protocols. As a general-purpose interface, ODBC is not (so far, at least) supportive of this functionality.
Best regards, John