Cryptography & Codes

Inside Cryptographic Algorithms: Structure & Security

An 8-question quiz testing intermediate knowledge of how cryptographic algorithms work, their historical context, and security properties.

#security#cryptography#cryptanalysis#ciphers#encryption#algorithms#crypto-primitives#hash-functions

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Total Questions

Difficulty Level

medium

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0/0

Quiz Questions

Answer all questions below and test your knowledge.

1
In his foundational 1945 report, Claude Shannon identified two basic methods for thwarting statistical cryptanalysis. These principles, later central to block cipher design, are named what?
Question 1
2
A significant architectural advantage of a Feistel cipher, like the historical Data Encryption Standard (DES), is which of the following?
Question 2
3
The algorithm RC4, now considered insecure but historically used in protocols like WEP and early TLS, belongs primarily to which cryptographic class?
Question 3
4
Regarding the classic meet-in-the-middle attack, which statement accurately describes its impact on double encryption using the same algorithm (e.g., 2DES)?
Question 4
5
Hash functions like SHA-256 are often built using the Merkle-Damgard structure. What is the fundamental operation repeated for each message block in this construction?
Question 5
6
A primary practical motivation for adopting Elliptic Curve Cryptography (ECC) over RSA in constrained environments is best described by which statement?
Question 6
7
The term 'avalanche effect' in the context of cryptographic hash functions and block ciphers specifically refers to which property?
Question 7
8
The Advanced Encryption Standard (AES) exemplifies a substitution-permutation network (SPN). What is a defining characteristic of an SPN's round function?
Question 8

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Inside Cryptographic Algorithms: Structure & Security

Quiz Intelligence

Quiz Questions

In his foundational 1945 report, Claude Shannon identified two basic methods for thwarting statistical cryptanalysis. These principles, later central to block cipher design, are named what?

A significant architectural advantage of a Feistel cipher, like the historical Data Encryption Standard (DES), is which of the following?

The algorithm RC4, now considered insecure but historically used in protocols like WEP and early TLS, belongs primarily to which cryptographic class?

Regarding the classic meet-in-the-middle attack, which statement accurately describes its impact on double encryption using the same algorithm (e.g., 2DES)?

Hash functions like SHA-256 are often built using the Merkle-Damgard structure. What is the fundamental operation repeated for each message block in this construction?

A primary practical motivation for adopting Elliptic Curve Cryptography (ECC) over RSA in constrained environments is best described by which statement?

The term 'avalanche effect' in the context of cryptographic hash functions and block ciphers specifically refers to which property?

The Advanced Encryption Standard (AES) exemplifies a substitution-permutation network (SPN). What is a defining characteristic of an SPN's round function?

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