基于MPT建模的属性访问控制策略.

For complex attribute engineering based on attribute access control, this paper performed partial security expansion is based on the MPT ( Merkle Patricia tree) method of the data storage structure used at the bottom of Ethereum, modeled discrete attributes into a unified MPT attribute set, and then Merkle proof method ensured the integrity of the attribute set. In order to ensure that the attribute privacy will not be leaked and enhance the security of the MPT attribute system in a distributed environment, it used the elliptic curve encryption algorithm of the public key system to process the attribute value. In addition, this article stored the MPT attribute set in a database to implement dynamic attribute operations. Theoretical analysis and experimental results show that this strategy can solve the integrity and security problems of attribute engineering, and makes attribute-based access control easy to implement in a distributed environment. [ABSTRACT FROM AUTHOR]