针对医学影像数据云平台环境下数据安全和隐私保护问题，提出了基于CP-ABE的查询属性基加密访问控制方案。查询属性基加密融合了属性基加密方法和可搜索加密方法，使本文方案在有效阻止非授权访问的同时，提供密文查询功能，并且关键字密文可被多个用户共享检索。%To solve security and privacy problems of medical imaging cloud platform, this paper puts forward the access control mechanism with attribute-based searchable encryption based on ciphertext-policy attribute-based encryption( CP-ABE) . The attribute-based searchable encryption is a combination of attribute-based encryption and searchable encryption, which effectively prevents unauthorized access and provides cryptograph query function,and the keyword cipher can be searched by multiple users.
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