期刊名称:Electronic Colloquium on Computational Complexity
印刷版ISSN:1433-8092
出版年度:1997
卷号:1997
出版社:Universität Trier, Lehrstuhl für Theoretische Computer-Forschung
摘要:The Diffie-Hellman key-exchange protocol may naturally be
extended to k>2 parties. This gives rise to the generalized
Diffie-Hellman assumption (GDH-Assumption).
Naor and Reingold have recently shown an efficient construction
of pseudo-random functions and reduced the security of their
construction to the GDH-Assumption.
In this note, we prove that breaking this assumption modulo a composite
would imply an efficient algorithm for factorization.
Therefore, the security of both the key-exchange protocol and
the pseudo-random functions can be reduced to factoring.
关键词:cryptography, Diffie-Hellman Assumption, Factoring, Key-Exchange, Pseudo-Random Function