Which of the following terms refers to a mechanism which proves that the sender really sent a particular message?
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A. B. C. D.D.
The term that refers to a mechanism which proves that the sender really sent a particular message is non-repudiation.
Authentication is the process of verifying the identity of the sender. It ensures that the sender is who they claim to be. Authentication can be achieved using various methods such as passwords, biometrics, tokens, or smart cards.
Integrity refers to the accuracy and completeness of data. It ensures that data has not been altered or tampered with during transmission or storage. Integrity can be ensured using various methods such as hash functions, digital signatures, and checksums.
Confidentiality refers to the protection of sensitive information from unauthorized access or disclosure. Confidentiality can be ensured using various methods such as encryption, access controls, and firewalls.
Non-repudiation refers to the assurance that a message or transaction cannot be denied by the sender. Non-repudiation provides proof of the origin and integrity of a message, and it ensures that the sender cannot later deny sending the message. Non-repudiation can be ensured using various methods such as digital signatures, timestamps, and audit trails.
In summary, authentication ensures that the sender is who they claim to be, integrity ensures the accuracy and completeness of data, confidentiality ensures the protection of sensitive information from unauthorized access, and non-repudiation ensures that the sender cannot deny sending a particular message.