Westermo MRI-128-F4G-PSE24 - Manual (Page 127)

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4.10.2 SNMP V3 Profile
SNMP V3 can provide more security functions when the user performs remote
management through SNMP protocol. It delivers SNMP information to the
administrator with user authentication; all of data between the switch and the
administrator are encrypted to ensure secure communication.
Security Level: Here the user can select the following levels of security: None,
Authentication, and “Authentication and Privacy”.
Auth. Protocol: Here the user can select either MD5 (Message-Digest algorithm 5)
or SHA (Secure Hash Algorithm). MD5 is a widely used cryptographic hash
function with a 128-bit hash value. SHA (Secure Hash Algorithm) hash functions
refer to five Federal Information Processing Standard-approved algorithms for
computing a condensed digital representation. The switch provides two user