Welcome to the resource topic for 2006/357
Title:
Cryptanalysis of a homomorphic public-key cryptosystem over a finite group
Authors: Su-Jeong Choi, Simon R. Blackburn, Peter R. Wild
Abstract:The paper cryptanalyses a public-key cryptosystem recently proposed by Grigoriev and Ponomarenko, which encrypts an element from a fixed finite group defined in terms of generators and relations to produce a ciphertext from SL(2, Z). The paper presents a heuristic method for recovering the secret key from the public key, and so this cryptosystem should not be used in practice.
ePrint: https://eprint.iacr.org/2006/357
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