基本信息:
- 专利标题： BLOCKCHAIN-BASED ACCOUNTABLE DATA PUBLISHING AND USAGE
- 申请号：PCT/US2018/062847 申请日：2018-11-28
- 公开(公告)号：WO2020112104A1 公开(公告)日：2020-06-04
- 发明人： SINHA, Rohit , GADDAM, Sivanarayana , LUYKX, Atul , YANG, Hao
- 申请人： VISA INTERNATIONAL SERVICE ASSOCIATION
- 申请人地址： P.O. Box 8999 San Francisco, California 94128 US
- 专利权人： VISA INTERNATIONAL SERVICE ASSOCIATION
- 当前专利权人： VISA INTERNATIONAL SERVICE ASSOCIATION
- 当前专利权人地址： P.O. Box 8999 San Francisco, California 94128 US
- 代理机构： BOUQUET, Bert E. et al.
- 主分类号： H04L9/08
- IPC分类号： H04L9/08 ; H04L9/14
摘要：
Described herein are a system and techniques for enabling user control over usage of their information, even when untrusted parties are involved. In embodiments of the disclosure, users are able to modify policy data on a decentralized network. A users information may be collected by a client device and provided to a host server. An encrypted version of the users information may be stored at the host server and when requested by a data consumer, the request may be processed on a private enclave of the host server. This may involve determining, based on a current status of the policy data on the decentralized network, whether the request is an authorized request. If so, then the information is decrypted, processed, and re-encrypted using a different cryptographic key. The requestor of the data may then be given access to the encrypted output.