non-repudiation


Also found in: Dictionary, Thesaurus, Legal, Wikipedia.

non-repudiation

To be unable to reject the validity of a document (unable to prove it is counterfeit). The term is the opposite of "repudiate," which means to reject the validity of something.

Digital signatures and certificates provide non-repudiation because they guarantee the authenticity of a document or message. As a result, the sending parties cannot deny that they sent it (they cannot repudiate it). Non-repudiation can also be used to ensure that an email message was opened (see email tracker).
References in periodicals archive ?
Proposed multiparty key exchange scheme is proved to be secure against attacks such as non-repudiation attack, man-in-the middle attack, and replay attack.
0 is designed to provide the privacy, identification, verified message integrity and non-repudiation required for secure e-commerce transactions between wireless devices and the WAP gateway to the Internet.