CA NetMaster for TCP/IP 12.2 supports AESCFB128 encryption when using SNMPv3 to obtain MIB data. This is also available with 12.1 and these PTFs:
RO89548 SUPPORT AESCFB128 PRIVACY PROTOCOL WITH SNMPV3 USM
RO90170 SUPPORT AESCFB128 PRIVACY PROTOCOL WITH SNMPV3 USM
Users of HMAC-SHA authentication also need
RO92098 SNMP V3 SHA PRIVACY KEY FIELD TOO LONG