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Eccouncil Exam 112-51 Topic 1 Question 4 Discussion

Actual exam question for Eccouncil's 112-51 exam
Question #: 4
Topic #: 1
[All 112-51 Questions]

Peter, a security professional, was hired by an organization and was instructed to secure the application and its content from unauthorized access. In this process, Peter implemented a public-key cryptosystem that uses modular arithmetic and elementary number theory for Internet encryption and user authentication.

Which of the following algorithms was employed by Peter in the above scenario?

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Suggested Answer: A

RSA is a public-key cryptosystem that uses modular arithmetic and elementary number theory for Internet encryption and user authentication. RSA stands for Rivest-Shamir-Adleman, the names of the inventors of the algorithm. RSA allows users to generate a pair of keys, one public and one private, that are mathematically related. The public key can be used to encrypt messages or verify digital signatures, while the private key can be used to decrypt messages or create digital signatures. RSA is based on the difficulty of factoring large numbers, which makes it secure and widely used12. Reference: What is Public-Key Cryptosystem in Information Security?, Network Defense Essentials (NDE) | Coursera


by Kristeen at Apr 11, 2024, 12:10 PM

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Viva
10 months ago
I don't think DSA fits the scenario as well as RSA does. RSA is more commonly used for this purpose.
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Kate
10 months ago
But what about DSA? It also involves modular arithmetic and could be a possible choice.
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Carylon
10 months ago
I agree with Glory, RSA is commonly used for Internet encryption and user authentication.
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Glory
10 months ago
I think Peter used RSA algorithm because it involves modular arithmetic and number theory.
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Ardella
11 months ago
RSA is based on modular arithmetic and is widely used for encryption and user authentication.
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Shantay
11 months ago
I'm not sure. Can someone explain why RSA is the most suitable choice?
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Latonia
11 months ago
I agree with RSA is commonly used for Internet encryption.
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Linwood
11 months ago
I think Peter employed the RSA algorithm.
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Louann
11 months ago
Alright, alright, let's not get too carried away here. I think the answer is clearly A) RSA. It's the most widely used public-key algorithm, and the description fits it like a glove.
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Rolande
12 months ago
I'm not so sure. MD6 is a newer hash function, and it could potentially be used in a public-key system. This one's got me stumped.
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Mary
10 months ago
I think A) RSA makes sense here
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Orville
10 months ago
I'm going with C) DSA
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Katlyn
10 months ago
A) RSA
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Ashlyn
12 months ago
Ah, this question is a classic! Public-key cryptosystem, modular arithmetic, and number theory? That's gotta be RSA, no doubt about it.
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