ORA-01017 and ORA-12545 when trying to connect to oracle 12c with sqlplus
You can't connect from a 9.2.0 SQL*Plus to a 12.2.0.1 version or Oracle Database.

It was never a supported option as displayed in the Interoperability Support Situation matrix chart in an Oracle Support Note.1 (Oracle Support Login required to read the Oracle Document.)

A SQL*Plus 9.2.0 client was only able to connect to 11.2.0 server or lower.

The lowest supported version of SQL*Plus that could connect to an 12.2.0.1 version of Oracle Database would be an 11.2.0.x client.

1 Oracle: Note 207303.1

Reference: oracle 9i client connecting to oracle 12c server
 (Stackoverflow.com)