An Identity-Based Blind Signature and Its Application for Privacy Preservation in Bitcoin

Author(s):  
Yitao Chen ◽  
Qi Feng ◽  
Min Luo ◽  
Li Li ◽  
Debiao He
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Quanrun Li ◽  
Chingfang Hsu ◽  
Debiao He ◽  
Kim-Kwang Raymond Choo ◽  
Peng Gong

With the rapid development of quantum computing and quantum information technology, the universal quantum computer will emerge in the near decades with a very high probability and it could break most of the current public key cryptosystems totally. Due to the ability of withstanding the universal quantum computer’s attack, the lattice-based cryptosystems have received lots of attention from both industry and academia. In this paper, we propose an identity-based blind signature scheme using lattice. We also prove that the proposed scheme is provably secure in the random oracle model. The performance analysis shows that the proposed scheme has less mean value of sampling times and smaller signature size than previous schemes. Thus, the proposed scheme is more suitable for practical applications.


2013 ◽  
Vol 19 (2) ◽  
pp. 143-149
Author(s):  
Qiaoying Tang ◽  
Fengxian Shen

2017 ◽  
Vol 22 (4) ◽  
pp. 355-360 ◽  
Author(s):  
Wen Gao ◽  
Yupu Hu ◽  
Baocang Wang ◽  
Jia Xie ◽  
Momeng Liu

2013 ◽  
Vol 457-458 ◽  
pp. 1262-1265
Author(s):  
Min Qin Chen ◽  
Qiao Yan Wen ◽  
Zheng Ping Jin ◽  
Hua Zhang

Based an identity-based signature scheme, we givea certificateless signature scheme. And then we propose a certificateless blind signature (CLBS) scheme in this paper. This schemeis more efficient than those of previous schemes by pre-computing the pairing e (P, P)=g. Based on CL-PKC, it eliminates theusing of certificates in the signature scheme with respect to thetraditional public key cryptography (PKC) and solves key escrowproblems in ID-based signature schemes. Meanwhile it retains themerits of BS schemes. The proposed CLBS scheme is existentialunforgeable in the random oracle model under the intractabilityof the q-Strong Diffie-Hellman problem.


2016 ◽  
Vol 41 (8) ◽  
pp. 3163-3176 ◽  
Author(s):  
SK Hafizul Islam ◽  
Ruhul Amin ◽  
G. P. Biswas ◽  
Mohammad S. Obaidat ◽  
Muhammad Khurram Khan

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