Alice proposes the following method to verify that she and Bob share the same AES-128 key. Alice generates a 128-bit binary string r using BBS, encrypts r, and sends the ciphertext block rₐ = Eₖₐ(r) to Bob, where E is the AES-128 encryption algorithm and KA is Alice's AES-128 encryption key. Bob decrypts rₐ to get r′ = DKB(rA) and sends r′ to Alice, where D is the AES-128 decryption algorithm and KB is Bob's AES-128 encryption key. Alice checks whether r′=r. If so, then Kₐ = KB. Is this protocol secure? Justify your answer.

Question

04-06-2024
Engineering

Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

Alice proposes the following method to verify that she and Bob share the same AES-128 key. Alice generates a 128-bit binary string r using BBS, encrypts r, and sends the ciphertext block rₐ = Eₖₐ(r) to Bob, where E is the AES-128 encryption algorithm and KA is Alice's AES-128 encryption key. Bob decrypts rₐ to get r′ = DKB(rA) and sends r′ to Alice, where D is the AES-128 decryption algorithm and KB is Bob's AES-128 encryption key. Alice checks whether r′=r. If so, then Kₐ = KB. Is this protocol secure? Justify your answer.

Sagot :

Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.

suppose that the introduction of a preventative maintenance program is deemed cost effective. which of the following is most likely true if the costs to actuall

parky Corp. provides contracted home staging services to real estate agencies and their clients. parky issued the following bonds in the current year: Required:

What is 47 = 2(k+3) +3(k-3) ? This is my missing work from being absent so pleas help me.

the flexible copper tubing that connects a 150-lb chlorine cylinder to a manifold should be rated at

richard would like to earn a certification that demonstrates his ability to manage enterprise security programs. what certification would be most appropriate fo

In its most recent approach, the comet Crommelin passed the Earth at about the same distance and in about the same position, some 25 degrees above the horizon,

what is the probability of getting a number less than 3 and a tails?; latricia determines that the probability; which value cannot represent the probability of

How are cold and warm fronts different ?; Why is cold front weather usually more severe than warm front weather?; What happens along cold fronts ?; What is a co

What is an equation in point-slope form of the line that passes through (-7, 1) and (-3, 9)? A. y+3=2(x-9) B. y-3=2(x + 9) C. y +9=2(x-3) D. y-9=2(x+3)

which term refers to following the rules or control points within the applicable regulation or standard?

Sagot :

Other Questions