计算机科学 ›› 2017, Vol. 44 ›› Issue (1): 149-154.doi: 10.11896/j.issn.1002-137X.2017.01.029
那海洋,杨庚,束晓伟
NA Hai-yang, YANG Geng and SHU Xiao-wei
摘要： 针对当前社会信息量大、隐私信息需要加密存储带来的检索难度大等问题,研究分析了现有的基于密文的可搜索加密方案,提出了一种基于B+树的多关键字密文排序方法。利用向量模型构建索引和查询陷门,根据相关性分数和关键字匹配度对检索结果进行排序。在真实数据集上进行了实验,结果证明本方案具有较高的检索效率。
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