For systems running Solaris 10, encryption is based on Public Key Cryptographic Standard (PKCS#11).
PKCS#11 specifies an API, called Cryptoki, to devices which hold cryptographic information and perform cryptographic functions. For more information on the RSA defined PKCS#11, see http://www.rsasecurity.com/rsalabs.
Note the following conditions for systems that run Solaris 10:
SNMP encryption on both the Sun Management Center server and agent hosts depends on the SUNWcsl package, which contains the /usr/lib/libpkcs11.so encryption library. This package is installed by default.
SNMP encryption is not supported on Sun Management Center 3.5 and earlier servers and agents even if SUNWcsl is installed.
SNMP encryption support is automatically configured during agent or server setup if the SUNWcsl package is detected.