International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Tony Thomas

Affiliation: I.I.T. Kanpur

Publications

Year
Venue
Title
2007
EPRINT
Towards Generating Secure Keys for Braid Cryptography
Braid cryptosystem was proposed in CRYPTO 2000 as an alternate public-key cryptosystem. The security of this system is based upon the conjugacy problem in braid groups. Since then, there have been several attempts to break the braid cryptosystem by solving the conjugacy problem in braid groups. In this paper, we first survey all the major attacks on the braid cryptosystem and conclude that the attacks were successful because the current ways of random key generation almost always result in weaker instances of the conjugacy problem. We then propose several alternate ways of generating hard instances of the conjugacy problem for use braid cryptography.

Coauthors

Ki Hyoung Ko (1)
Jang Won Lee (1)