SPCHS Construction for Expeditious Keyword Search in Cipher Text

The subsisting public-key encryption schemes which are semantically secure, take linear search time with the total number of cipher texts, thus making data retrieval from databases arduous or time consuming. So, in order to rectify the current quandary, the paper proposes SPCHS Methodology for Expeditious Keyword Search. In Searchable Public Key Cipher texts with Obnubilated Structures (SPCHS), the concept of obnubilated structures is introduced. Here, the concept of filtering is utilized efficiently. This in turn, makes data retrieval from sizably voluminous scale databases far more facile by reducing the time intricacy as well as ensuring efficient performance. The time involution of our scheme depends only on the genuine number of engendered cipher texts rather than all the number of cipher texts. Given a keyword for a file search, predicated on the filtering mechanism we designate the file extension or type which has to be returned thus ruling out all the other possibilities which not only makes probing more facile but withal preserves time involution. This article gives an overview about SPCHS Mechanism and the sundry methods adopted.