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Which of the following encryption modes can make protocols without integrity protection even more susceptible to replay attacks, since each block gets decrypted in exactly the same way?
Suggested Answer: D
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38 comments · newest first
LU
Luann
10 months ago
Cipher block chaining can help with that, right?
MA
Malcom
11 months ago
Yup, ECB is a no-go for security!
IV
Ivan
11 months ago
Wait, are we sure about that? Seems too simple.
WI
Willodean
11 months ago
I agree, ECB is super weak for that reason.
GA
Gary
11 months ago
Definitely ECB mode! Each block is independent.
AL
Alecia
12 months ago
I’m a bit confused, but I remember that Output Feedback mode also has some vulnerabilities. Still, I lean towards ECB for this question.
BI
Billi
12 months ago
I recall practicing a question about encryption modes, and I think ECB was mentioned as being weak. It seems like the right choice here.
DO
Doyle
12 months ago
I'm not entirely sure, but I feel like Cipher Block Chaining mode is more secure against replay attacks since it uses chaining.
NI
Nieves
1 year ago
I think it might be Electronic Codebook mode because I remember it doesn't use an initialization vector, which could lead to patterns being repeated.
LU
Ludivina
1 year ago
This question is testing our understanding of how different encryption modes can impact security. I'll need to think carefully about the implications of each mode.
JU
Jules
1 year ago
Okay, let me carefully consider the details of each encryption mode. I want to make sure I select the right answer.
MI
Milly
1 year ago
Aha, I know the answer to this one! It's option B, cipher block chaining mode.
TY
Tyra
1 year ago
Hmm, I'm a bit unsure about this. I'll have to review my notes on encryption modes to figure this out.
JO
Johnathon
1 year ago
This one seems tricky, but I think I can work through it. Let me think this through step-by-step.
LA
Lashawnda
1 year ago
Wait, is it me or does this question sound like it's straight out of a spy movie? I feel like I should be wearing a tuxedo while answering this.
EA
Earleen
1 year ago
D definitely seems like the right answer. I can't believe I almost fell for that tricky wording in the question!
VA
Van
1 year ago
D) Electronic codebook mode
AL
Aliza
1 year ago
C) Output feedback mode
KA
Kate
1 year ago
B) Cipher block chaining mode
AR
Arlene
1 year ago
A) Cipher feedback mode
FL
Florinda
1 year ago
Ugh, these encryption modes can be so confusing. I'm just hoping for a multiple-choice miracle on this one.
MU
Muriel
1 year ago
D) Electronic codebook mode
KE
Kerry
1 year ago
C) Output feedback mode
CE
Ceola
1 year ago
B) Cipher block chaining mode
AH
Ahmed
1 year ago
A) Cipher feedback mode
BE
Beckie
1 year ago
Haha, I bet the exam writers were just waiting to trick us with that one. Good thing I studied hard for this!
FA
Fanny
1 year ago
D) Electronic codebook mode
MU
Murray
1 year ago
C) Output feedback mode
PA
Paulina
1 year ago
B) Cipher block chaining mode
NI
Nieves
1 year ago
A) Cipher feedback mode
GE
Gene
2 years ago
I agree with Jose, Electronic codebook mode makes protocols more susceptible to replay attacks.
NI
Nickolas
2 years ago
I think the answer is D. Electronic codebook mode, since it encrypts each block independently, making it vulnerable to replay attacks.
TA
Tamie
1 year ago
D) Electronic codebook mode
FR
Freida
1 year ago
C) Output feedback mode
AR
Armando
1 year ago
B) Cipher block chaining mode
PE
Peter
1 year ago
A) Cipher feedback mode
CL
Clay
2 years ago
I disagree, I believe the correct answer is B) Cipher block chaining mode.
JO
Jose
2 years ago
I think the answer is D) Electronic codebook mode.