Authentication and Privacy

SNMPv3 employs a User-Based Security Model (USM). The two protocols used for authentication and privacy are:

• Authentication—SHA
• Privacy—DES

Four parameters generate keys under the designated algorithm:

• SNMPEngineID—The unique identifier for the SNMP Engine. This value is a specially formatted string for use in the SNMP.
• User name—The user’s name as defined under snmp-user-entry.
• Authorization password—The authorization password configured under the snmp-user-entry configuration. This parameter is used to derive the authentication key.
• Privacy password—You set the privacy password in the snmp-user-entry configuration. It is used to derive the password key.