【摘要】 构建一种基于素数阶双线性群的可搜索加密方案。基于属性加密,实现每个关键词密文能够被多个用户私钥搜索,显著降低细粒度访问控制带来的网络带宽和发送节点的处理开销。基于多项式方程,支持对关键词的任意连接搜索,显著提高连接搜索的灵活性。对方案的性能进行了分析,并与现有的连接关键词搜索方案进行了比较。更多还原

【Abstract】 A new searchable encryption scheme was proposed in prime order bilinear groups based on the attribute-based encryption and polynomial equation. The scheme, in which each conjunctive-keyword ciphertext can be searched by a number of users, may significantly reduce the overhead of network and sending nodes’ computation in the application of fine-grained access control.Meanwhile, the scheme facilitates the flexibility of conjunctive search by supporting arbitrary conjunctive search of the keywords. At last, the performance was analyzed and compared with some recent conjunctive search schemes.更多还原