usm DH User Priv Key Change

1.3.6.1.3.101.1.1.2.1.3

The object used to change any given user's Privacy Key using a Diffie-Hellman key exchange. The right-most n bits of the shared secret 'sk', where 'n' is the number of bits required for the protocol defined by usmUserPrivProtocol, are installed as the operational privacy key for this row after a successful SET.