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Changes to one character in the plain text affect multiple characters in the cipher text, unlike in historical algorithms where each plain text character only affect one cipher text character.
Suggested Answer: D
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Vigenre
https://en.wikipedia.org/wiki/Vigen%C3%A8re_cipher
The Vigenre cipher is a method of encrypting alphabetic text by using a series of interwoven Caesar ciphers, based on the letters of a keyword. It employs a form of polyalphabetic substitution.
First described by Giovan Battista Bellaso in 1553, the cipher is easy to understand and implement, but it resisted all attempts to break it until 1863, three centuries later. This earned it the description le chiffre indchiffrable (French for 'the indecipherable cipher'). Many people have tried to implement encryption schemes that are essentially Vigenre ciphers. In 1863, Friedrich Kasiski was the first to publish a general method of deciphering Vigenre ciphers.
44 comments · newest first
CA
Candra
11 months ago
Interesting how modern ciphers differ from the old ones!
BE
Becky
11 months ago
Wait, are we sure about that? Seems off.
MY
Myra
11 months ago
Totally agree, diffusion is key here.
SH
Shizue
12 months ago
I thought it was confusion?
JA
Janna
12 months ago
That's definitely diffusion at work!
RH
Rhea
1 year ago
I feel like substitution is too simple for this scenario, but I'm not confident about the difference between diffusion and avalanche.
TR
Trina
1 year ago
This sounds familiar; I practiced a question about confusion and diffusion, but I can't recall which one applies here.
YU
Yuki
1 year ago
I'm not entirely sure, but I remember something about the avalanche effect being important in modern ciphers.
TE
Tequila
1 year ago
I think this might be related to diffusion, where a change in one character spreads out to affect others in the cipher text.
JU
Junita
1 year ago
This is a tricky one. The wording about "historical algorithms" is throwing me off a bit. I'll have to review my notes on block cipher modes and how they differ from older substitution-based ciphers. Gotta make sure I don't overthink this.
MI
Micah
1 year ago
Okay, I think I've got it. The fact that changes to the plaintext affect multiple ciphertext characters means the algorithm is using some kind of diffusion technique, rather than just simple substitution. I'm pretty confident that's the right answer.
KR
Kristian
1 year ago
Hmm, I'm a bit unsure about this one. The question mentions "unlike in historical algorithms", so I'm not sure if the answer is really that simple. I'll have to think this through carefully.
OL
Oliva
1 year ago
This one seems straightforward - the key concept here is that changes to the plaintext affect multiple characters in the ciphertext, which points to the concept of diffusion.
CA
Catarina
1 year ago
This seems like a tricky question about optical networking technology. I'll need to think carefully about the different modulation and multiplexing techniques used in high-speed fiber optic communications.
LE
Leila
1 year ago
I think this question is about work center utilization, but I'm not totally sure if it could also be related to efficiency.
TA
Tamra
1 year ago
Looks like we've got a cryptography nerd in the house! I'll just guess and hope for the best.
EM
Emerson
1 year ago
C) Confusion
WI
Wilburn
1 year ago
B) Avalanche
GA
Gary
1 year ago
A) Substitution
LA
Laura
1 year ago
This is clearly about diffusion, not some historical algorithm. D is the way to go, folks.
JE
Jeffrey
1 year ago
D) Diffusion
RE
Rene
1 year ago
C) Confusion
TA
Tanesha
1 year ago
B) Avalanche
JO
Josephine
1 year ago
A) Substitution
DO
Dolores
2 years ago
Hmm, this is a tricky one. I'm leaning towards C - confusion seems to fit the description of the relationship between plaintext and ciphertext.
TI
Tina
1 year ago
I'm not sure, but I'll choose A - substitution for now.
GE
Germaine
1 year ago
I would go with D - diffusion, it seems to make more sense.
HY
Hyman
1 year ago
I think C - confusion is the right choice here.
MA
Mariann
2 years ago
Ah, the avalanche effect! That's gotta be B. Changes in the plaintext should ripple through the ciphertext.
AN
Annmarie
1 year ago
So, the avalanche effect is an important property in modern encryption algorithms.
LA
Lashandra
1 year ago
Exactly, it helps to ensure that even a small change in the plaintext will result in a completely different ciphertext.
SH
Sharmaine
1 year ago
I think it has to do with how small changes in the input can cause drastic changes in the output.
EV
Evette
1 year ago
Yes, you're right! The avalanche effect is a key concept in encryption.
MA
Mauricio
2 years ago
I'm not sure, but I think it could also be B) Avalanche because it describes the cascading effect of changes in the plain text.
VA
Valentine
2 years ago
I agree with Danica, because diffusion ensures that changes in plain text affect multiple characters in the cipher text.
DA
Danica
2 years ago
I think the answer is D) Diffusion.
NI
Nicolette
2 years ago
I'm not sure, but I think it could also be B) Avalanche, as it describes how changes in the input propagate through the output.
LI
Lilli
2 years ago
I agree with Lemuel, because diffusion ensures that changes in plain text affect multiple characters in the cipher text.
CA
Caprice
2 years ago
This sounds like the concept of diffusion in modern cryptography. I'll go with D.
KI
Kimbery
1 year ago
I think diffusion helps to make it harder for attackers to decipher the original message.
LA
Launa
1 year ago
That's why diffusion is crucial for ensuring the security of encrypted messages.
DO
Domitila
1 year ago
Yes, changes to one character in the plain text should affect multiple characters in the cipher text.
JU
Julieta
1 year ago
I agree, diffusion is an important concept in modern cryptography.
LE
Lemuel
2 years ago
I think the answer is D) Diffusion.