Cryptology ePrint Archive: Report 2003/087

A Practical Elliptic Curve Public Key Encryption Scheme Provably Secure Against Adaptive Chosen-message Attack

huafei zhu

Abstract: We study elliptic curve cryptosystems by first investigating the schemes defined over $Z_p$ and show that the scheme is provably secure against adaptive chosen cipher-text attack under the decisional Diffie-Hellman assumption. Then we derive a practical elliptic curve cryptosystem by making use of some nice elliptic curve where the decisional Diffie-Hellman assumption is reserved.

Category / Keywords: public-key cryptography /

Publication Info: new report

Date: received 1 May 2003

Contact author: huafei at i2r a-star edu sg

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Version: 20030507:184150 (All versions of this report)

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