[Resource Topic] 1998/024: The Disparity between Work and Entropy in Cryptology

Welcome to the resource topic for 1998/024

Title:
The Disparity between Work and Entropy in Cryptology

Authors: John Pliam

Abstract:

A brief theory of work is developed. In it, the work-factor and
guesswork of a random variable are linked to intuitive notions of time
complexity in a brute-force attack. Bounds are given for a specific
work-factor called the minimum majority. Tight bounds are given for
the guesswork in terms of variation distance. Differences between
work-factor, guesswork and the entropy of a random variable are
pointed out, calling into question a common misconception about
entropy indicating work.

ePrint: https://eprint.iacr.org/1998/024

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