Selecting Cryptographic Key Sizes

Springer Science and Business Media LLC - Tập 14 - Trang 255-293 - 2001
Arjen K. Lenstra1, Eric R. Verheul2
1Citibank, N.A., 1 North Gate Road, Mendham, NJ 07945-3104, U.S.A. [email protected] and Technische Universiteit Eindhoven, US
2PricewaterhouseCoopers, GRMS Crypto Group, Goudsbloemstraat 14, 5644 KE Eindhoven, The Netherlands eric.verheul@[nl.pwcglobal.com, pobox.com], NL

Tóm tắt

In this article we offer guidelines for the determination of key sizes for symmetric cryptosystems, RSA, and discrete logarithm-based cryptosystems both over finite fields and over groups of elliptic curves over prime fields. Our recommendations are based on a set of explicitly formulated parameter settings, combined with existing data points about the cryptosystems.