Zero-Knowledge Proof-of-Identity: Sybil-Resistant, Anonymous Authentication on Permissionless Blockchains and Incentive Compatible, Strictly Dominant Cryptocurrencies

2019 ◽  
Author(s):  
David Cerezo Sánchez
Keyword(s):  
Zero Knowledge ◽  
Anonymous Authentication ◽  
Incentive Compatible ◽  
Zero Knowledge Proof

scholarly journals An access control model for the Internet of Things based on zero-knowledge token and blockchain

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Lihua Song ◽  
Xinran Ju ◽  
Zongke Zhu ◽  
Mengchen Li
Keyword(s):  
Internet Of Things ◽  
Access Control ◽  
Single Point ◽  
Control Model ◽  
Third Party ◽  
Security Level ◽  
Zero Knowledge ◽  
Access Control Model ◽  
Test Analysis ◽  
Zero Knowledge Proof

AbstractInformation security has become a hot topic in Internet of Things (IoT), and traditional centralized access control models are faced with threats such as single point failure, internal attack, and central leak. In this paper, we propose a model to improve the access control security of the IoT, which is based on zero-knowledge proof and smart contract technology in the blockchain. Firstly, we deploy attribute information of access control in the blockchain, which relieves the pressure and credibility problem brought by the third-party information concentration. Secondly, encrypted access control token is used to gain the access permission of the resources, which makes the user's identity invisible and effectively avoids attribute ownership exposure problem. Besides, the use of smart contracts solves the problem of low computing efficiency of IoT devices and the waste of blockchain computing power resources. Finally, a prototype of IoT access control system based on blockchain and zero-knowledge proof technology is implemented. The test analysis results show that the model achieves effective attribute privacy protection, compared with the Attribute-Based Access Control model of the same security level, the access efficiency increases linearly with the increase of access scale.

Data Security Through Zero-Knowledge Proof and Statistical Fingerprinting in Vehicle-to-Healthcare Everything (V2HX) Communications

2021 ◽  
pp. 1-11
Author(s):  
Junaid Ahsenali Chaudhry ◽  
Kashif Saleem ◽  
Mamoun Alazab ◽  
Hafiz Maher Ali Zeeshan ◽  
Jalal Al-Muhtadi ◽  
...  
Keyword(s):  
Data Security ◽  
Zero Knowledge ◽  
Zero Knowledge Proof

How to construct constant-round zero-knowledge proof systems for NP

1996 ◽  
Vol 9 (3) ◽  
pp. 167-189 ◽  
Author(s):  
Oded Goldreich ◽  
Ariel Kahan
Keyword(s):  
Zero Knowledge ◽  
Proof Systems ◽  
Zero Knowledge Proof
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