data origin authentication
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... data origin authentication, and
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... computed by the originator and verified by the recipient -- with each
SNMP message. The data origin authentication service is provided by
prefixing the message with a secret value known only to the
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... prefixing the message with a secret value known only to the
originator and recipient, prior to computing the digest. Thus, data
integrity is supported explicitly while data origin authentication is
supported implicitly in the verification of the digest.
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... in an unauthorized manner.
Data Origin Authentication is the provision of the
property that the claimed origin of received data is
corroborated.
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The protocols specified in this memo require both data
integrity and data origin authentication to be used at all
times. For these protocols, it is not possible to realize data
integrity without data origin authentication ...
... data origin authentication to be used at all
times. For these protocols, it is not possible to realize data
integrity without data origin authentication, nor is it possible
to realize data origin authentication without data integrity ...
... data
integrity without data origin authentication, nor is it possible
to realize data origin authentication without data integrity.
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... In support of data origin authentication and data
integrity, the portion of a SNMP message that is
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... Data Origin Authentication Mechanism ...
... only to communicating parties. By virtue of this mechanism and
assumptions 1 and 2, the protocols explicitly prevent unauthorized
modification of messages. Data origin authentication is implicit if
the message digest value can be verified. That is, the protocols
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