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Security Dictionary
Can't tell 'smtp' from 'snmp'? Find the precise meaning of these and hundreds of other security-related terms in our convenient and up-to-date Security Dictionary.
data origin authentication service
(I) A security service that verifies the identity of a system
entity that is claimed to be the original source of received data.
(See: authentication, authentication service.)
(C) This service is provided to any system entity that receives or
holds the data. Unlike peer entity authentication service, this
service is independent of any association between the originator
and the recipient, and the data in question may have originated at
any time in the past.
(C) A digital signature mechanism can be used to provide this
service, because someone who does not know the private key cannot
forge the correct signature. However, by using the signer's public
key, anyone can verify the origin of correctly signed data.
(C) This service is usually bundled with connectionless data
integrity service. (See: (relationship between data integrity
service and authentication services under) data integrity service.
