Asked by: Zarai Legasa
asked in category: General Last Updated: 30th April, 2020

Why do we need Message Authentication Code?

Message authentication code . The MAC value protects both a message's data integrity as well as its authenticity, by allowing verifiers (who also possess the secret key) to detect any changes to the message content.

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Moreover, what is the need for message authentication?

Message authentication . In information security, message authentication or data origin authentication is a property that a message has not been modified while in transit (data integrity) and that the receiving party can verify the source of the message .

Beside above, what does authentication code mean? An authentication code is an identifier that is used to verify identity or validate the authenticity of data such as messages. They are often hashcodes that are designed to be infeasible to guess.

Similarly, it is asked, what is the need of Message Authentication ques10?

Message authentication is a mechanism or service used to verify the integrity of a message . The following attacks can be identifies : a) Disclosure :Release of message contents to any person or process not processing the appropriate cryptographic key.

Is a message authentication code function is similar to encryption?

A MAC function is similar to encryption . One difference is that the MAC algorithm need not be reversible, as it must be for decryption. In general, the MAC function is a many-to-one function .

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