In digital security, nonrepudiation is a way to ensure that the sender of a message can’t deny having sent the message and that the recipient can’t deny the receipt of the message and provides the evidence that particular action has been taken .
Non-repudiation provides protection against the false denial of having performed a particular action. Hence, it protects the sender against the false assertion of the receiver that the message has not been received and a receiver against the false assertion of the sender that the message has not been sent. It provides the capability to determine whether a given individual performed a particular action such as creating information, sending a message, approving information, and receiving a message. Non-repudiation is accomplished through functions such as electronic signatures, transmission encryption, or time stamping and transaction recording in an audit trail record . Nonrepudiation is often used for digital contracts, signatures and email messages.
- Baker, D. B., & Cooper, T. (1995). Information system security issues for health care. Manuscript in preparation, Science Applications International Corp. and Kaiser Permanente.
- Maheu, M., Whitten, P., and Allen, A. (2001) E-Health, Telehealth, and Telemedicine: A Guide to Startup and Success. San Francisco: Jossey-Bass, p.120.