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http://dx.doi.org/10.33778/kcsa.2019.19.5.011

Fair Private Block Encryption Protocol for Delegated Node of Public Blockchain  

Jung, Seung Wook (건양대학교/사이버보안공학과)
Lee, HooKi (건양대학교/사이버보안공학과)
Publication Information
Convergence Security Journal / v.19, no.5, 2019 , pp. 11-18 More about this Journal
Abstract
In current public blockchain, any node can see every blocks, so that public blockchain provider transparent property. However, some application requires the confidential information to be stored in the block. Therefore, this paper proposes a multi-layer blockchain that have the public block layer and the private block for confidential information. This paper suggests the requirement for encryption of private block. Also, this paper shows the t-of-n threshold cryptosystem without dealer who is trusted third party. Finally proposed scheme satisfies the requirements for encryption and fairness.
Keywords
Blockchain; Private Block; Threshold Cryptosystem;
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