312-50V10 Question #175: Real Exam Question with Answer & Explanation

The correct answer is D: RSA is asymmetric, which is used to create a public/private key pair; AES is symmetric, which is. AES is a symmetric algorithm using a single shared key, while RSA is an asymmetric algorithm using a mathematically linked public/private key pair - they represent the two primary categories of modern encryption.

Cryptography

Question

What is the difference between the AES and RSA algorithms?

Options

ABoth are symmetric algorithms, but AES uses 256-bit keys
BAES is asymmetric, which is used to create a public/private key pair; RSA is symmetric, which is
CBoth are asymmetric algorithms, but RSA uses 1024-bit keys
DRSA is asymmetric, which is used to create a public/private key pair; AES is symmetric, which is

Explanation

AES is a symmetric algorithm using a single shared key, while RSA is an asymmetric algorithm using a mathematically linked public/private key pair - they represent the two primary categories of modern encryption.

Common mistakes.

A. RSA is not a symmetric algorithm - it is asymmetric and uses a key pair, not a single shared key, so this statement is fundamentally incorrect.
B. AES and RSA are reversed in this choice - AES is the symmetric algorithm and RSA is the asymmetric one, not the other way around.
C. AES is not an asymmetric algorithm - it is a symmetric block cipher that uses a single key, so describing both AES and RSA as asymmetric is factually incorrect.

Concept tested. AES vs RSA symmetric and asymmetric algorithm differences

Reference. https://csrc.nist.gov/projects/cryptographic-standards-and-guidelines

Topics

#AES#RSA#symmetric vs asymmetric#encryption algorithms

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