Identify the associated risk with each authentication method and provide a solution for the following scenario. Bob compares a hashed password to a database of hashed passwords. Bob compares a hashed password against a database containing double-hashed credentials.

Determine the potential dangers of each authentication technique and provide a remedy.Bob checks a hashed password against a collection of previous attempts.Bob uses a database to verify a double-hashed password.

Think about using a snapshot isolation mechanism for the bank's database. Banks may run into trouble if executions are not serializable.

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.

Identify the hazard in each authentication type and provide a remedy for the following scenario:Bob hashes a password and compares it to a hashed password database.Bob hashes a password and checks it against a database of doubly-hashed passwords.

To solve the following issue, you must first identify the vulnerabilities in each authentication technique.Passwords are validated by Bob by first hashing them and then looking them up in a database of hashes.Bob uses a hashing method to verify a password against a list of previously hashed passwords.

Using linear hashing to insert the given values in the order provided with the hash function hi(K) = K mod 2i . Display how the file grows and the hash functions changes as the records are inserted. Draw the diagrams showing the loading of the data into buckets, overflows, and splits. Also, calculate the average number of block accesses for a random retrieval on the given records.   Given records are 2369, 3760, 4692, 4871, 5659, 1821, 1074, 7115, 1620, 2428, 3943, 4750, 6975, 4981 and 9208.

Explain “Collisions in the hashing” in detail.

should a hash function be reversible? - no, because this woild allow the plaintext to be decrypted from the hash, rendering message digests and digital signatures unworkable -yes, because this would allow the hash to contribute to error detection and correction operations -in a limited way, they are reversible, bevause the hash acts as a pointer or key into database and file management systems where the plaintext comes from -none of the above