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What is an IV?
Suggested Answer: D
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2
https://en.wikipedia.org/wiki/Modulo_operation
The modulo operation returns the remainder or signed remainder of a division, after one number is divided by another (called the modulus of the operation).
Given two positive numbers a and n, a modulo n (abbreviated as a mod n) is the remainder of the Euclidean division of a by n, where a is the dividend and n is the divisor. The modulo operation is to be distinguished from the symbol mod, which refers to the modulus (or divisor) one is operating from.
For example, the expression '5 mod 2' would evaluate to 1, because 5 divided by 2 has a quotient of 2 and a remainder of 1, while '9 mod 3' would evaluate to 0, because the division of 9 by 3 has a quotient of 3 and a remainder of 0; there is nothing to subtract from 9 after multiplying 3 times 3.
35 comments · newest first
SA
Sarina
11 months ago
I’m not so sure about C, sounds a bit too technical.
AH
Ahmed
11 months ago
C is correct, no doubt about it!
RU
Ruthann
11 months ago
Wait, isn't an IV just random bits?
JO
Joni
12 months ago
I thought it was B at first, but C makes more sense.
CA
Carla
12 months ago
It's definitely C! IVs are all about randomness.
TI
Tish
1 year ago
I’m leaning towards option C too, but I’m a bit confused about how it differs from just a random key.
GO
Golda
1 year ago
I feel like I’ve seen a question similar to this before, but I can’t recall if it was about IVs or something else in cryptography.
AS
Asha
1 year ago
I remember studying that an IV is used to add randomness to block ciphers, so I think option C sounds right.
AL
Alise
1 year ago
I think an IV is related to encryption, but I'm not entirely sure if it's just random bits or something more specific.
HY
Hyman
1 year ago
Ah, I remember learning about IVs in class. They're used to increase the randomness of a block cipher, so I'm going to select option C.
ED
Edmond
1 year ago
Random bits added to a hash? That doesn't sound right. I think an IV has something to do with encryption, so I'll go with option B.
NO
Norah
1 year ago
Hmm, I'm a bit confused on this one. Is an IV the key used for a cryptography algorithm? I'll have to think about this one a bit more.
OL
Olive
1 year ago
I'm pretty sure an IV is a fixed size random stream that is added to a block cipher to increase randomness, so I'll go with option C.
LI
Lizette
1 year ago
I'm going with C. Adding a random stream to a block cipher just seems like the kind of thing they'd ask about in a crypto exam.
MA
Matt
1 year ago
I'm not sure, but I'll go with B. The key used for a cryptography algorithm seems like a possibility.
MI
Mila
1 year ago
I think it's A. Random bits added to a hash sounds like it could be an IV.
LA
Lawrence
1 year ago
I'm going with C. Adding a random stream to a block cipher just seems like the kind of thing they'd ask about in a crypto exam.
BA
Barrett
1 year ago
B) The key used for a cryptography algorithm - that's my guess, but I'm not totally sure.
MA
Magnolia
1 year ago
C) A fixed size random stream that is added to a block cipher to increase randomness
FR
Francesco
1 year ago
B) The key used for a cryptography algorithm - that's my guess, but I'm not totally sure.
JU
Justa
1 year ago
A) Random bits added to a hash
CR
Craig
2 years ago
IV? I thought that was just for when you need to give someone fluids in the hospital. What does that have to do with cryptography?
DO
Domingo
1 year ago
IV stands for Initialization Vector and it is used in cryptography to add randomness to encryption
FR
Francoise
1 year ago
C) A fixed size random stream that is added to a block cipher to increase randomness
NO
Novella
1 year ago
A) Random bits added to a hash
LA
Lachelle
2 years ago
I agree with Francine. An IV helps to make the encryption more secure by adding randomness to the process.
DE
Deeanna
2 years ago
C) A fixed size random stream that is added to a block cipher to increase randomness - that sounds like the most technical and likely correct answer.
SH
Shenika
1 year ago
B) The key used for a cryptography algorithm
GR
Graham
1 year ago
A) Random bits added to a hash
AN
Annamae
1 year ago
C) A fixed size random stream that is added to a block cipher to increase randomness
AF
Afton
2 years ago
B) The key used for a cryptography algorithm
AN
Antione
2 years ago
A) Random bits added to a hash
LO
Lorita
2 years ago
IV? Hmm, maybe it stands for 'Intravenous'? I bet that's not the right answer here.
FR
Francine
2 years ago
I think an IV is a fixed size random stream that is added to a block cipher to increase randomness.
KA
Katie
2 years ago
What is an IV?