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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
6 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
6 months ago
But what about DSA? It also involves modular arithmetic and could be a possible choice.
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Carylon
7 months ago
I agree with Glory, RSA is commonly used for Internet encryption and user authentication.
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Glory
7 months ago
I think Peter used RSA algorithm because it involves modular arithmetic and number theory.
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Ardella
7 months ago
RSA is based on modular arithmetic and is widely used for encryption and user authentication.
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Shantay
7 months ago
I'm not sure. Can someone explain why RSA is the most suitable choice?
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Latonia
7 months ago
I agree with RSA is commonly used for Internet encryption.
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Linwood
7 months ago
I think Peter employed the RSA algorithm.
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Louann
8 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
8 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
6 months ago
I think A) RSA makes sense here
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Orville
7 months ago
I'm going with C) DSA
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Katlyn
7 months ago
A) RSA
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Ashlyn
8 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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