scholarly journals Cryptanalysis of Rational Multivariate Public Key Cryptosystems

2008 ◽  
pp. 124-136 ◽  
Author(s):  
Jintai Ding ◽  
John Wagner
Keyword(s):  
Public Key ◽  
Public Key Cryptosystems ◽  
Multivariate Public Key

scholarly journals Identity-Based Signature Schemes for Multivariate Public Key Cryptosystems

2019 ◽  
Vol 62 (8) ◽  
pp. 1132-1147 ◽  
Author(s):  
Jiahui Chen ◽  
Jie Ling ◽  
Jianting Ning ◽  
Jintai Ding
Keyword(s):  
General Scheme ◽  
Security Analysis ◽  
Distribution Center ◽  
Public Key ◽  
Signature Schemes ◽  
The Public ◽  
Public Key Cryptosystems ◽  
Unique Identity ◽  
Identity Based ◽  
Multivariate Public Key

Abstract In this paper, we proposed an idea to construct a general multivariate public key cryptographic (MPKC) scheme based on a user’s identity. In our construction, each user is distributed a unique identity by the key distribution center (KDC) and we use this key to generate user’s private keys. Thereafter, we use these private keys to produce the corresponding public key. This method can make key generating process easier so that the public key will reduce from dozens of Kilobyte to several bits. We then use our general scheme to construct practical identity-based signature schemes named ID-UOV and ID-Rainbow based on two well-known and promising MPKC signature schemes, respectively. Finally, we present the security analysis and give experiments for all of our proposed schemes and the baseline schemes. Comparison shows that our schemes are both efficient and practical.

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