Question: The data authentication algorithm, can be defined as using the cipher block chaining (CBC) mode of operation of DES with an initialization vector of zero

The data authentication algorithm, can be defined as using the cipher block chaining (CBC) mode of operation of DES with an initialization vector of zero (Figure 12.7). Show that the same result can be produced using the cipher feedback mode. Time = 1 Time = 2 D D (64 bits) HI DES

Time = 1 Time = 2 D D (64 bits) HI DES DES K-> encrypt encrypt 0 0 (64 bits) K (56 bits) Time = N - 1 DN-1 K-> Figure 12.7 Data Authentication Algorithm (FIPS PUB 113) DES encrypt ON-1 K-> Time = N DN DES encrypt ON DAC (16 to 64 bits)

Step by Step Solution

★★★★★

3.37 Rating (150 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The CBC mode with an IV of 0 and p... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Cryptography And Network Security Questions!

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...

1.2 1.3 1.4 There are a number of "rules" that a work study practitioner must observe in order to keep the respect of the supervisor. List them What is the principal objective of methods engineering?...

The data authentication algorithm, described in Section 12.6, can be defined as using the cipher block chaining (CBC) mode of operation of DES with an initialization vector of zero (Figure 12.7)....

PLEASE WRITE IN C Vigenere with Cipher Block Chaining This assignment involves implementing the Vigenere cipher as a block cipher and using the Cipher Block Chaining mode of operation, which we have...

Vigenere with Cipher Block Chaining This assignment involves implementing the Vigenere cipher as a block cipher and using the Cipher Block Chaining mode of operation, which we have studied in lecture...

Birzeit University Faculty of Engineering and Technology Department of Electrical and Computer Engineering ENCS 4 3 2 0 - Applied Cryptography ( Term 1 2 3 2 ) Homework # 2 ( Programming Assignment )...

Description: The tiny encryption algorithm ( TEA ) is a symmetric key block cipher designed for simplicity and efficiency, especially in resource - constraint environments. The TEA uses a 6 4 - bit...

The relationship between voltage, E, current, I, and resistance, Z, is given by the equation E = IZ. If a circuit has a current | = 3 + 2i and a resistance Z = 2-i, what is the voltage of the circuit?

In a sample of 212 men, 91 said they used seat belts. In a sample of 304 women, 82 said they used seat belts. Test the claim that men are more safety conscious than women, at a = 0.01. Use the...

For commercial rentals, what are the rules that owners must comply with?

Many stores, such as hardware stores, carry so many relatively low-cost items that keeping a perpetual inventory record for each separate item is not practical. When the salesperson rings up a sale,...

How to broadcast a message on the Internet? Two questions need to be answered: What address should be used as the broadcast address. How to send data to the broadcast address? A broadcast address is...

Write a stream-based echo server and a client sending messages to it, and receiving back each message in turn. Hint: Modify the stream-based TCP client and server programs in this chapter or similar...

Modify the server program from Exercise 2.4 to set the TCP window size for the server socket. Hint: Set the SO_RCVBUF size through a call to setsockopt(). Be aware that setting the TCP window size in...

11. A business combination is "a transaction or other event in which an acquirer obtains control of one or more businesses * (2 Points) yes no

Blockchain could help to avoid double spending in cryptocurrency. Based on the information below, User A is sending 5 BTC to Users B and C almost simultaneously. Who is guaranteed to receive the...

For an unlevered firm, the cost of equity, RE, is equal to the required return on the firm's assets, RA Group of answer choices False True The most recent data for Kinder Morgan Series A Preferred...