A New Knapsack Public-Key Cryptosystem Based on Permutation Combination Algorithm

Main Authors: Min-Shiang Hwang, Cheng-Chi Lee, Shiang-Feng Tzeng
Format: Article eJournal
Bahasa: eng
Terbitan: , 2009
Subjects:
Online Access: https://zenodo.org/record/1056018
Daftar Isi:
  • A new secure knapsack cryptosystem based on the Merkle-Hellman public key cryptosystem will be proposed in this paper. Although it is common sense that when the density is low, the knapsack cryptosystem turns vulnerable to the low-density attack. The density d of a secure knapsack cryptosystem must be larger than 0.9408 to avoid low-density attack. In this paper, we investigate a new Permutation Combination Algorithm. By exploiting this algorithm, we shall propose a novel knapsack public-key cryptosystem. Our proposed scheme can enjoy a high density to avoid the low-density attack. The density d can also exceed 0.9408 to avoid the low-density attack.