Welcome to the resource topic for 2002/139
Title:
Reaction Attacks on Public Key Cryptosystems Based on the Word Problem
Authors: Maria Isabel Gonzalez Vasco, Rainer Steinwandt
Abstract:Wagner and Magyarik outlined a general construction for public key
cryptosystems based on the hardness of the word problem for
finitely presented groups. At the same time, they gave a specific
example of such a system. We prove that their approach is
vulnerable to so-called reaction attacks, namely, it is possible
to retrieve the private key just by watching the performance of a
legitimate recipient.
ePrint: https://eprint.iacr.org/2002/139
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