authentication

Pronunciation:		oth`entuk'eyshun
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WordNet Dictionary

	Definition:	[n] validating the authenticity of something or someone [n] a mark on an article of trade to indicate its origin and authenticity

	Synonyms:	assay-mark, certification, hallmark

	See Also:	mark, marker, marking, proof, substantiation, validation

Computing Dictionary

	Definition:	The verification of the identity of a person or process. In a communication system, authentication verifies that messages really come from their stated source, like the signature on a (paper) letter.

	See Also:	security