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In a ______ the attacker discovers a functionally equivalent algorithm for encryption and decryption, but without learning the key.

A.
Information deduction
Answers
A.
Information deduction
B.
Total break
Answers
B.
Total break
C.
Instance deduction
Answers
C.
Instance deduction
D.
Global deduction
Answers
D.
Global deduction
Suggested answer: B

Explanation:

Global deduction

https://en.wikipedia.org/wiki/Cryptanalysis

Global deduction --- the attacker discovers a functionally equivalent algorithm for encryption and decryption, but without learning the key.

Incorrect answers:

Instance (local) deduction --- the attacker discovers additional plaintexts (or ciphertexts) not previously known.

Information deduction --- the attacker gains some Shannon information about plaintexts (or ciphertexts) not previously known.

Total break --- the attacker deduces the secret key.

asked 18/09/2024
Devon Woods
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