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GIAC GISF Exam - Topic 7 Question 56 Discussion

Actual exam question for GIAC's GISF exam
Question #: 56
Topic #: 7
[All GISF Questions]

Which of the following types of cipher encrypts alphabetic text by using a series of differentCaesar ciphers based on the letters of a keyword?

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Suggested Answer: C

by Dallas at Sep 10, 2024, 02:29 AM

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Vilma
3 months ago
Vigenère is classic, can't believe some people mix it up!
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Chau
3 months ago
I thought it was a transposition cipher at first.
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Arlene
3 months ago
Wait, are we sure it's not a block cipher?
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Dierdre
4 months ago
Totally agree, A is the right answer!
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Dustin
4 months ago
It's definitely the Vigenère cipher!
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Glendora
4 months ago
I recall a question similar to this in our last review session, and I think it was about the Vigenère cipher too. It just fits the description!
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Virgilio
4 months ago
I’m a bit confused; I thought the Vigenère was more about polyalphabetic substitution. Could it be something else?
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Refugia
4 months ago
I remember practicing with different ciphers, and the Vigenère was definitely one of them. It feels like the right choice here.
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Glendora
5 months ago
I think the answer might be the Vigenère cipher since it uses a keyword to shift letters, but I'm not completely sure.
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Domitila
5 months ago
Transposition ciphers rearrange the order of the letters, so that doesn't seem right for this description. I'm leaning towards Vigenère.
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Jill
5 months ago
The keyword aspect makes me think Vigenère as well. I'll focus on understanding how that cipher works in more detail.
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Joye
5 months ago
Hmm, I'm a bit confused on the difference between block ciphers and stream ciphers. I'll have to review those concepts again.
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Francine
5 months ago
I'm pretty sure this is a Vigenère cipher, since it mentions using a keyword to apply a series of Caesar ciphers.
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Haley
5 months ago
Social engineering, definitely. That's the technique that involves manipulating people to get information, right?
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Catrice
5 months ago
This kind of question pops up in practice tests, and I feel like I remember most sources saying it points to the screen, not the keyboard.
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Arlene
9 months ago
Stream ciphers? What is this, a liquid encryption party? The Vigenère cipher is the way to go, no doubt about it.
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Gerald
8 months ago
Stream ciphers may be fast, but Vigenère cipher offers a unique way to encrypt messages.
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Rolf
8 months ago
Block ciphers and transposition ciphers are also popular methods of encryption.
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Fatima
9 months ago
Transposition ciphers can be tricky to decrypt, but Vigenère cipher is more versatile.
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Deeanna
9 months ago
Block ciphers are also quite secure, but Vigenère cipher has its own charm.
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Bette
9 months ago
Stream ciphers are actually quite different, they encrypt data bit by bit instead of by blocks.
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Nicholle
9 months ago
I agree, the Vigenère cipher is a classic and effective encryption method.
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Elouise
9 months ago
I agree, the Vigenère cipher is a classic and effective encryption method.
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Mila
10 months ago
The Vigenère cipher, of course! It's the 'Swiss Army Knife' of ciphers. Now, if only I could remember how to spell 'Vigenère'...
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Audra
9 months ago
Yes, the Vigenère cipher uses a keyword to encrypt the text.
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Patrick
9 months ago
I think the Vigenère cipher is the answer to the question.
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Xenia
9 months ago
I agree, the Vigenère cipher is quite versatile.
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Estrella
10 months ago
Hmm, a series of Caesar ciphers... Gotta be the Vigenère cipher! I bet the keyword is something like 'password' or 'abc123'.
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Kenneth
9 months ago
Yes, the Vigenère cipher encrypts text using a series of Caesar ciphers based on the letters of a keyword.
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Dannette
9 months ago
I think you're right, the Vigenère cipher uses a keyword to encrypt the text.
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Tequila
10 months ago
Block ciphers? Nah, that's not it. I think I'm going with the Vigenère cipher. Sounds fancy, must be the correct answer.
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Esteban
10 months ago
I'm not sure, but I think Vigen re cipher is the right choice because it uses a keyword to create different Caesar ciphers.
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Laura
10 months ago
I agree with Janna, Vigen re cipher makes sense for this type of encryption.
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Iraida
10 months ago
The Vigenère cipher is the answer! It uses a keyword to create a series of Caesar ciphers. I'm pretty sure about this one.
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Janna
11 months ago
I think the answer is C) Vigen re cipher.
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