Tao Feng1,*, Hongmei Pei1, Rong Ma1, Youliang Tian2, Xiaoqin Feng3
CMC-Computers, Materials & Continua, Vol.66, No.1, pp. 871-890, 2021, DOI:10.32604/cmc.2020.012146
- 30 October 2020
Abstract Data privacy is important to the security of our society, and enabling
authorized users to query this data efficiently is facing more challenge. Recently,
blockchain has gained extensive attention with its prominent characteristics as
public, distributed, decentration and chronological characteristics. However, the
transaction information on the blockchain is open to all nodes, the transaction
information update operation is even more transparent. And the leakage of transaction information will cause huge losses to the transaction party. In response to
these problems, this paper combines hierarchical attribute encryption with linear
secret sharing, and proposes a blockchain data… More >
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