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The term signature can have several meanings depending on the context. It may refer to:

Signature (functions)
A function signature (or type signature, or method signature) defines input and output of functions or methods.
Signature (security)
A signature, or digital signature, is a protocol showing that a message is authentic.

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 Contributors to this page: PetiPandaRou, fscholz, Andrew_Pfeiffer, klez, kscarfone, teoli
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