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SCP Exam SC0-471 Topic 1 Question 82 Discussion

Actual exam question for SCP's SC0-471 exam
Question #: 82
Topic #: 1
[All SC0-471 Questions]

When using DH, what keys will Bob use to send an encrypted message to Alice?

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Suggested Answer: D

by Levi at Apr 09, 2024, 03:04 AM

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Destiny
6 months ago
I believe Bob will use his private key to encrypt the message.
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Alica
6 months ago
Actually, Bob will use my public key for encryption.
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Reid
6 months ago
I think Bob will use the session key, not Alice's public key.
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Margarett
6 months ago
Yes, I will use Alice's public key to send an encrypted message.
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Alica
7 months ago
Bob will use my public key.
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Estrella
6 months ago
And then Alice will use her private key to decrypt the message.
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Maurine
6 months ago
Correct, because Bob needs to encrypt the message to send it securely to Alice.
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Stefania
6 months ago
Bob will use Alice's public key.
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Kerry
7 months ago
Wow, you're all way off the mark. This is Diffie-Hellman we're talking about, not RSA. Bob and Alice are going to use a shared secret key, not individual public or private keys. The answer is C, the session key.
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Wilda
7 months ago
You guys are all wrong. Clearly, the answer is E, Bob's private key. I mean, he's the one sending the message, right? He's got to use his own private key to encrypt it.
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Ruthann
7 months ago
Whoa, whoa, whoa, let's not get too crazy here. Bob's not using his own keys at all in this scenario. He's using Alice's keys to encrypt the message. So it's gotta be option A, Alice's public key.
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Daren
7 months ago
Hold up, you two. I think you're both missing something here. Doesn't DH use a session key to encrypt the message? I'm pretty sure the answer is C, the session key.
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Shalon
7 months ago
Nah, man, I think you're off the mark there. If Bob's sending an encrypted message to Alice, he's going to use Alice's public key. That's the whole point of public-key cryptography, right? Option A is the way to go.
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Valentine
8 months ago
Ah, the good old DH question! This one always gets me excited, like a kid in a candy store. Let's see, which key will Bob use... Hmm, I'm going to go with option D, Bob's public key. Gotta keep that private key safe, you know!
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