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Eccouncil Exam 212-81 Topic 12 Question 25 Discussion

Actual exam question for Eccouncil's 212-81 exam

Question #: 25
Topic #: 12

[All 212-81 Questions]

Early attempt to make substitution ciphers more robust, masks letter frequencies, plain text letters map to multiple cipher text symbols.

AScytale Cipher

BPlayfair Cipher

CHomophonic Substitution

DADFVGX Cipher

Show Suggested Answer

Suggested Answer: D

Integrity

https://en.wikipedia.org/wiki/Cryptographic_hash_function#Verifying_the_integrity_of_messages_and_files

An important application of secure hashes is verification of message integrity. Comparing message digests (hash digests over the message) calculated before, and after, transmission can determine whether any changes have been made to the message or file.

by Gearldine at Jan 23, 2024, 06:29 AM

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Dorothy

8 days ago

I'm not sure, but I think A) Scytale Cipher could also be a possible answer.

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Latosha

9 days ago

I agree with Cecily, Playfair Cipher makes sense for this question.

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Tien

10 days ago

I'm pretty sure it's the Homophonic Substitution Cipher. Masking letter frequencies sounds like a key feature of that one.

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Cecily

11 days ago

I think the answer is B) Playfair Cipher.

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Lashon

12 days ago

I'm not sure, but I think A) Scytale Cipher could also be a possible answer.

upvoted 0 times

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Kasandra

13 days ago

I agree with Gilbert, Playfair Cipher makes sense for this question.

upvoted 0 times

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Gilbert

14 days ago

I think the answer is B) Playfair Cipher.

upvoted 0 times

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az-700 pass4success az-104 200-301 200-201 cissp 350-401 350-201 350-501 350-601 350-801 350-901 az-720 az-305 pl-300

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