-
公开(公告)号：US10903982B2
公开(公告)日：2021-01-26
申请号：US16770897
申请日：2018-12-10
发明人： Yuzhuang Xu , Yu Zhou , Tao Zhu , Xiang Yao
摘要： The present disclosure relates to a smart contract-based data transfer method, comprising the steps of: a data source encrypting data to be transferred based on a first mechanism to form encrypted data, and sending the encrypted data to a smart contract terminal; the smart contract terminal decrypting the encrypted data based on a second mechanism corresponding to the first mechanism to form the decrypted data, and processing the decrypted data by using at least one logic unit to form the resulting data; and the smart contract terminal sending the resulting data to a data-related party; wherein the at least one logic unit executes an instruction set to implement a contract logic, and the instruction set is stored in a blockchain.
-
公开(公告)号：US11687921B2
公开(公告)日：2023-06-27
申请号：US17595767
申请日：2020-09-23
发明人： Hehe Wang , Yuzhuang Xu , Tao Zhu , Yu Zhou
CPC分类号： G06Q20/3827 , G06Q20/38215 , G06Q20/407 , G06Q20/4014 , H04L9/3297
摘要： The present disclosure provides a method and a device for control of blockchain data access based on a smart contract. The method includes obtaining, by a blockchain node, an access operation request of an institution, the access operation request including a transaction identifier of a transaction to be accessed, according to the transaction identifier, determining a blockchain state corresponding to the transaction identifier, the blockchain state including a hash value of the transaction corresponding to a last time change of the blockchain state, according to the hash value of the transaction corresponding to the last time change in the blockchain state and an identifier of the institution, performing data access control on the institution, obtaining control result, and transmitting the control result to the institution.
-
搜索结果
2 条记录 (耗时 0.011 秒)
