標題: | A Privacy-Preserving Encoding for Efficient Comparison Queries and Access Control from Predicate Encryption |
作者: | Chen, Shao-Heng Tseng, Fu-Kuo Chen, Rong-Jaye 交大名義發表 National Chiao Tung University |
關鍵字: | hidden vector encryption;encoding;comparison predicate;ciphertext-policy attribute based encryption;query and access control |
公開日期: | 1-一月-2015 |
摘要: | A hidden vector encryption (HVE) scheme, one type of predicate encryption schemes, can support comparison predicates on encrypted keywords through encrypted predicates by pairing transformed keyword vectors with predicate vectors. However, the length of these vectors grows in proportion to the size of the keyword space and so does the system complexity. In this paper, we provide a privacy-preserving encoding for efficient comparison queries, where the length of the vectors and the system complexity is only logarithmically proportional to the size of the keyword space. In addition, our encoding integrates a HVE scheme and a ciphertext-policy attribute based encryption (CPABE) scheme. This integration provides not only the access control based on the searchable keywords but also balanced overheads among encryption, key generation and query for both computation and storage overheads. |
URI: | http://dx.doi.org/10.3233/978-1-61499-484-8-788 http://hdl.handle.net/11536/150899 |
ISSN: | 0922-6389 |
DOI: | 10.3233/978-1-61499-484-8-788 |
期刊: | INTELLIGENT SYSTEMS AND APPLICATIONS (ICS 2014) |
Volume: | 274 |
起始頁: | 788 |
結束頁: | 797 |
顯示於類別: | 會議論文 |