Key Recovery Attack on a Knapsack Public Key Cryptosystem

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Sep 2012Publisher:IEEEJournal:2012 Fourth International Conference on Intelligent Networking and Collaborative Systems

Authors: Chunfei Ju; Hui Yuan;

doi: 10.1109/incos.2012.89

Key Recovery Attack on a Knapsack Public Key Cryptosystem

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Abstract

A new knapsack public key cryptosystem is crypt analyzed. The cryptanalytic attack uses the Euclidean algorithm to obtain the greatest common divisor of some integers, and thus recovers the modulus. Then the attack reconstructs the multiplier by solving a linear congruence. Therefore, all the secret keys can be retrieved in polynomial time. Hence, the public key cryptosystem is insecure.

Related Organizations

Xijing University
China (People's Republic of)

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