Answer the following statements true (T) or false (F)
1. The straightforward use of public-key encryption provides confidentiality and authentication.
2. A CTR-based authenticated encryption approach is the most efficient mode of operation for high-speed packet networks.
3. An important characteristic of the MAC algorithm is that it needs to be reversible.
4. As with encryption algorithms and hash functions cryptanalytic attacks on MAC algorithms seek to exploit some property of the algorithm to perform some attack other than an exhaustive search.
5. To attack MD5, the attacker can choose any set of messages and work on these offline on a dedicated computing facility to find a collision.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. TRUE
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Indicate whether the statement is true or false
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