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What is a digital signature?
A digital signature is a proof that a document is correct
A digital signature is a technique used to testify the authenticity of a document or a digital document
A digital signature is a technique used to match public keys and entities
A digital signature is a mathematical technique used to testify the authenticity of a document or a digital document. It is not to be confused with a digital certificate (or public key certificate) which is an electronic document used to match publics keys with an identity.
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