Nonrepudiation

nounStandard termTelecom & IT

A security mechanism ensuring that a party cannot deny the authenticity of their signature or the sending of a message.

Nonrepudiation is a property of secure communications where cryptographic proof links an action directly to a specific user or system. It relies on digital signatures and public key infrastructure to ensure that a sender cannot falsely deny sending a message, and a recipient cannot falsely deny receiving it. Network engineers and security analysts require this for audit trails, financial transactions, and legally binding digital contracts.

Heard on the job

We need to implement digital signatures on the API requests to guarantee nonrepudiation for the billing events.