Can a shared key be used to encrypt an AES key? Justify your answerHash function is compared to keyed hash function. View an example of a hash function with a single key.

What benefits does a hash index table provide?

Using quadratic probing, what would be the answer for the following questions if you insert the following keys in sequence: 10, 17, 24, 31, 21, 19. (N = 7) While doing the insertions  keep track of the number of collisions for each key and get the final configuration of the structure.  Use the following quadratic hashing function: ((x mod 7) + j²) mod 7. What is the final configuration of the hash table? Use the indices from 0 to 6 to report where each key will be mapped. If the position has no value use the word empty. For example, if the final configuration is 10,17,24,31,21,19 (starting from index 0), your answer in the box should be 10,17,24,31,21,19,empty. Please don't use blank spaces or quotes to separate the values.          Report the number of collisions for each key using the order of insertion. For example, if you answer as 0,1,3,1,0,1, this means that you found 0 collisions for key 3, 1 collision for key 10, 3 collisions for key 17, 1 collision for key 24, 0 collisions…

The first step of most signature schemes consists in hashing the message to be signed. Discuss which security property a suitable hash function must have, and briefly show an attack that is possible if the hash function does not have this property.