Paper 2009/488 Original: eprint.iacr.org/2009/488 ↗
Little Dragon Two: An efficient Multivariate Public Key Cryptosystem
Abstract
In 1998 [8], Patarin proposed an efficient cryptosystem called Little Dragon which was a variant of Matsumoto Imai cryptosystem C¤. However Patarin later found that Little Dragon cryptosystem is not secure [8], [3]. In this paper we propose a public key cryp- tosystem Little Dragon Two which is as e±cient as Little Dragon cryptosystem but secure against all the known attacks. Like little Dragon cryptosystem the public key of Little Dragon Two is of mixed type that is quadratic in plaintext and ciphertext variables. So the public key size of Little Dragon Two is equal to Little Dragon Cryptosystem. Our Public key algorithm is bijective and can be used for both encryption and signatures.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2009-10-05: last updated
- 2009-10-05: published
- Short URL
- https://ia.cr/2009/488
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2009/488,
author = {Rajesh P Singh and A. Saikia and B. K. Sarma},
title = {Little Dragon Two: An efficient Multivariate Public Key Cryptosystem},
howpublished = {Cryptology {ePrint} Archive, Paper 2009/488},
year = {2009},
url = {https://eprint.iacr.org/2009/488}
}