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When the key size is finite, equivocation approaches

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in Digital Communications by (828k points)
When the key size is finite, equivocation approaches

(a) Unity

(b) Zero

(c) Infinity

(d) None of the mentioned

The question was asked during a job interview.

The origin of the question is Cipher Systems and Secrecy of Cipher Systems topic in portion Spread Spectrum Techniques of Digital Communications

1 Answer

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Best answer
The correct option is (b) Zero

Explanation: With a finite key size, equivocation approaches zero.

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