By default, encryption is enabled during the installation process. All SDK suites and applications that interact with each other must share a common secret phrase. The security configuration files and files with passwords to SNMP v3 devices all contain encrypted information.
The basis for encryption is a secret phrase that gets transformed into the imk.dat file. This file is the basis of encryption for SDK programs. The programs use the site secret to encrypt passwords in the configuration files and keywords in seed files, as well as to encrypt connections between SDK programs.