From Longman Dictionary of Contemporary Englishdigital signatureˌdigital ˈsignature noun [countable] information on an electronic message that proves who the person sending the message is
Examples from the Corpus
digital signature• If the fingerprints do match, however, then Y can be quite sure that the digital signature is authentic.• Therefore the digital signature verifies both the identity of the sender and the authenticity of the data in the document.From Longman Business Dictionarydigital signatureˌdigital ˈsignature (also electronic signature) [countable]COMPUTING information on an electronic message that proves who the person sending the message or information isA digital signature identifies and authenticates the originator of the information. → signature 