title: A study of practical proxy reencryption with a keyword search scheme considering cloud storage structure.
abstract: Data outsourcing services have emerged with the increasing use of digital information. They can be used to store data from various devices via networks that are easy to access. Unlike existing removable storage systems, storage outsourcing is available to many users because it has no storage limit and does not require a local storage medium. However, the reliability of storage outsourcing has become an important topic because many users employ it to store large volumes of data. To protect against unethical administrators and attackers, a variety of cryptography systems are used, such as searchable encryption and proxy reencryption. However, existing searchable encryption technology is inconvenient for use in storage outsourcing environments where users upload their data to be shared with others as necessary. In addition, some existing schemes are vulnerable to collusion attacks and have computing cost inefficiencies. In this paper, we analyze existing proxy re-encryption with keyword search.
authors.affiliation: Department of Computer Software Engineering, Soonchunhyang University, Asan-si, Chungcheongnam-do, Republic of Korea.
authors.forename: Sun-Ho
authors.identifier: 0000-0001-8349-3901
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Department of Computer Software Engineering, Soonchunhyang University, Asan-si, Chungcheongnam-do, Republic of Korea.
authors.forename: Im-Yeong
authors.initials: IY
authors.lastname: Lee
mesh_terms: D000465:Algorithms; D016494:Computer Security; D016247:Information Storage and Retrieval / Q000379:methods*; D020407:Internet; D012815:Signal Processing, Computer-Assisted