You can run a custom RSA plug-in located in <ORACLE_HOME>/oam/custom_plugins/rsa/RSAPlugin.jar.
To run a custom RSA plug-in:
Download the RSA dependent libraries named authapi.jar and cryptoj.jar.
Add the authapi.jar and cryptoj.jar libraries to <DOMAIN_HOME>/config/fmwconfig/oam/plugin-lib.
Get the custom RSAPlugin.jar file from its directory and import the plugin to add it to the list of custom plugins.
Once successfully imported, distribute and activate the plug-in.
Activation will fail the first time. When it does, restart the server and activate again. After activation, use the plugin to specify the necessary orchestration steps.