## CryptoDB

### Paper: A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension Fields

Authors: Seigo Arita Kazuto Matsuo Koh-ichi Nagao Mahoro Shimura URL: http://eprint.iacr.org/2004/240 Search ePrint Search Google This paper shows that many of elliptic curve cryptosystems over quartic extension fields of odd characteristics are reduced to genus two hyperelliptic curve cryptosystems over quadratic extension fields. Moreover, it shows that almost all of the genus two hyperelliptic curve cryptosystems over quadratic extension fields of odd characteristics come under Weil descent attack. This means that many of elliptic curve cryptosystems over quartic extension fields of odd characteristics can be attacked by Weil descent uniformly.
##### BibTeX
@misc{eprint-2004-12209,
title={A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension Fields},
booktitle={IACR Eprint archive},
keywords={public-key cryptography / discrete logarithm problem, elliptic curve cryptosystem, number theory, Weil descent attack},
url={http://eprint.iacr.org/2004/240},
note={ nagao@kanto-gakuin.ac.jp 12677 received 15 Sep 2004},
author={Seigo Arita and Kazuto Matsuo and Koh-ichi Nagao and Mahoro Shimura},
year=2004
}