Paper 2002/168

New Signature Scheme Using Conjugacy Problem

Ki Hyoung Ko, Doo Ho Choi, Mi Sung Cho, and Jang Won Lee

Abstract

We propose a new digital signature scheme based on a non-commutative group where the conjugacy search problem is hard and the conjugacy decision problem is feasible. We implement our signature scheme in the braid groups and prove that an existential forgery of the implementation under no message attack gives a solution to a variation of conjugacy search problem. Then we discuss performance of our scheme under suggested parameters.

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
non-commutativebraidgroupsdigital signaturesconjiugacy problemimplementation
Contact author(s)
knot @ knot kaist ac kr
History
2002-11-12: received
Short URL
https://ia.cr/2002/168
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2002/168,
      author = {Ki Hyoung Ko and Doo Ho Choi and Mi Sung Cho and Jang Won Lee},
      title = {New Signature Scheme Using Conjugacy Problem},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/168},
      year = {2002},
      url = {https://eprint.iacr.org/2002/168}
}
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