Is Nonrepudiation a Word?

Non-repudiation is the assurance that someone cannot deny the validity of something.

How do you use non-repudiation in a sentence?

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).

What is Nonrepudiation and why is it important?

Nonrepudiation provides an assurance that the sender of data is provided with proof of delivery and the recipient is provided with proof of the sender's identity, so neither can later deny having processed the data. ... Nonrepudiation is typically comprised of authentication, auditing/logging, and cryptography services.