Explain the concept of non-repudiation in network security.

Explain the concept of non-repudiation in network security.

Non-repudiation in network security refers to the concept of ensuring that a sender of a message or transaction cannot deny having sent it, and the recipient cannot deny having received it. It provides evidence and proof of the origin and delivery of a message or transaction, making it legally binding and preventing any party from denying their involvement. Non-repudiation is typically achieved through the use of digital signatures, timestamps, and other cryptographic techniques that ensure the integrity and authenticity of the communication.