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Paper 2006/357
Cryptanalysis of a homomorphic public-key cryptosystem over a finite group
Su-Jeong Choi and Simon R. Blackburn and 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.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Contact author(s)
- s blackburn @ rhul ac uk
- History
- 2006-10-23: last of 2 revisions
- 2006-10-23: received
- See all versions
- Short URL
- https://ia.cr/2006/357
- License
-
CC BY
