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Paper Abstract and Keywords
Presentation 2015-06-12 11:10
Knapsack Cryptosystems with Random Secret Sequences using Logical And Operation
Yasuyuki Murakami, Shinsuke Hamasho (OECU), Masao Kasahara (WU/CU)
Abstract (in Japanese) (See Japanese page) 
(in English) In 2012, the present authors proposed a knapsack public-key cryptosystem using a random secret sequence, which will be referred to as MHK scheme.
However, in CSS2013, Nagao and Morii discovered that the plaintext of MHK scheme can be disclosed by computing an alternative solution. This attack will be referred to as alternative solution attack. We then proposed MHK4 and MHK3 schemes which are secure against the alternative solution attack.
In this paper, we clarify the relationship between MHK4 and MHK3 schemes by redefining the generalized version of these schemes and comparing them.
Keyword (in Japanese) (See Japanese page) 
(in English) knapsack cryptosystem / subset-sum problem / random sequence / MHK4 / MHK3 / AND / XOR /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 81, ICSS2015-11, pp. 57-62, June 2015.
Paper # ICSS2015-11 
Date of Issue 2015-06-04 (IA, ICSS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee IA ICSS  
Conference Date 2015-06-11 - 2015-06-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Institute of Technology Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Internet Security, etc. 
Paper Information
Registration To ICSS 
Conference Code 2015-06-IA-ICSS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Knapsack Cryptosystems with Random Secret Sequences using Logical And Operation 
Sub Title (in English)  
Keyword(1) knapsack cryptosystem  
Keyword(2) subset-sum problem  
Keyword(3) random sequence  
Keyword(4) MHK4  
Keyword(5) MHK3  
Keyword(6) AND  
Keyword(7) XOR  
1st Author's Name Yasuyuki Murakami  
1st Author's Affiliation Osaka Electro-Communication University (OECU)
2nd Author's Name Shinsuke Hamasho  
2nd Author's Affiliation Osaka Electro-Communication University (OECU)
3rd Author's Name Masao Kasahara  
3rd Author's Affiliation Waseda University/Chuo University (WU/CU)
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Date Time 2015-06-12 11:10:00 
Presentation Time 20 
Registration for ICSS 
Paper # IEICE-IA2015-11,IEICE-ICSS2015-11 
Volume (vol) IEICE-115 
Number (no) no.80(IA), no.81(ICSS) 
Page pp.57-62 
#Pages IEICE-6 
Date of Issue IEICE-IA-2015-06-04,IEICE-ICSS-2015-06-04 

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