Rementer to show your win all the wind This hot bother (33) • B-4 • 4 . the compartir • How • Ovem Anne Three ledere pes

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Rementer To Show Your Win All The Wind This Hot Bother 33 B 4 4 The Compartir How Ovem Anne Three Ledere Pes 1 (18.63 KiB) Viewed 23 times

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Remember to show your work in all the questions! This question relates to hash functions for block ciphers (sec 113.2) • Blocks4 bits Hash size 4 bits 9H) - a 4-bit string that is equal to the complement of bits in H For example, if HA (Hexa) 1010 (binary then 0010101 Ho initial hash in Hexa) Given message M AB (in Hexa) There are two different types of encryption functions: Alpha and Beta • Encryption Function Alpha: Divide the key into two halves: LK and RK, Divide the plaintext into two halves: LT and RT, Then ciphertext-LCRC where LCHUK XOR RT, and RC = RK XOR LT, where LC, RC, LT, and RT are each 2 bits, Plaintext and ciphertext are each 4 bits Encryption Function Beta: A simple XOR of the key with the input. In other words, to encrypt x with we simply perform x XORk giving y Part 1: With encrytion function Alpha 2. Points 15) Determine the hash (in hexadecimal) of the message using Martyus-Meyer Omas hash function with encryption function Alpha. Do not use the encryption function Beta (Fig 116) Points 1.5 Determine the hash in hexadecimal) of the message Musing Davis-Meyer hash function with encryption function Alpha Do not use the encryption function Beta (Fig. 11,7) c. Points 1.5 Determine the hash in hexadecimal) of the message Musing Migayuchi-Proneel hash function with encryption function Alpha Do not use the encryption function Beta. (Fig. 117) Part 2: With encrytion function Beta. 4 points 3.5) Determine the hanh (in hexadecimal) of the message Musing Martyn-Mayer Oseas hush function with encryption function Beta. Do not use the encryption function Alpha (9 11.6) e Points 35) Determine the hash (in hexadecimal) of the message Musing Davis-Meyer hash function with encryption function Beta Do not use the encryption function Alpha (Fig 117) 1 Points 3.5) Determine the hash in hexadecimal) of the message Musing Migayuchi-Prenee hash function with encryption function Beta. Do not use the encryption function Alpha (Fig. 117) Scan your work for Question 4 (all parts from a to) as a pdf file and attach it below