计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2009年
22期
153-154,158
,共3页
数据库安全%加密数据%连接关键词搜索
數據庫安全%加密數據%連接關鍵詞搜索
수거고안전%가밀수거%련접관건사수색
database security%encrypted data%conjunctive keyword search
该算法把生成"能力"的过程分为线下和线上2个部分,它对多个连接关键词的安全搜索时间比原有算法降低了80%左右,实例分析结果验证了其正确性和有效性.
該算法把生成"能力"的過程分為線下和線上2箇部分,它對多箇連接關鍵詞的安全搜索時間比原有算法降低瞭80%左右,實例分析結果驗證瞭其正確性和有效性.
해산법파생성"능력"적과정분위선하화선상2개부분,타대다개련접관건사적안전수색시간비원유산법강저료80%좌우,실례분석결과험증료기정학성화유효성.
Existing keyword search algorithms can only deal with single keyword and presenting high time complexity. Aiming at this problem, this paper proposes a secure search algorithm for encrypted data which searches several conjunctive keywords at the same time. This algorithm partitions the processes for generating "Capability" into two parts -- online part and offline part. Its run time of secure search is about eighty percents less than existing algorithms. Example analysis results show that this algorithm is reasonable and effective.
