TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Towards efficient sharing of encrypted data in cloud-based mobile social network |
| 영문제목(English Title) |
Towards efficient sharing of encrypted data in cloud-based mobile social network |
| 저자(Author) |
Xin Sun
Yiyang Yao
Yingjie Xia
Xuejiao Liu
Jian Chen
Zhiqiang Wang
|
| 원문수록처(Citation) |
VOL 10 NO. 04 PP. 1892 ~ 1903 (2016. 04) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
Mobile social network is becoming more and more popular with respect to the development and popularity of mobile devices and interpersonal sociality. As the amount of social data increases in a great deal and cloud computing techniques become developed, the architecture of mobile social network is evolved into cloud-based that mobile clients send data to the cloud and make data accessible from clients. The data in the cloud should be stored in a secure fashion to protect user privacy and restrict data sharing defined by users. Ciphertext-policy attribute-based encryption (CP-ABE) is currently considered to be a promising security solution for cloud-based mobile social network to encrypt the sensitive data. However, its ciphertext size and decryption time grow linearly with the attribute numbers in the access structure. In order to reduce the computing overhead held by the mobile devices, in this paper we propose a new Outsourcing decryption and Match-then-decrypt CP-ABE algorithm (OM-CP-ABE) which firstly outsources the computation-intensive bilinear pairing operations to a proxy, and secondly performs the decryption test on the attributes set matching access policy in ciphertexts. The experimental performance assessments show the security strength and efficiency of the proposed solution in terms of computation, communication, and storage. Also, our construction is proven to be replayable choosen-ciphertext attacks (RCCA) secure based on the decisional bilinear Diffie-Hellman (DBDH) assumption in the standard model.
|
| 키워드(Keyword) |
attributed-based encryption
decryption outsourcing
mobile device
social network
cloud
|
| 파일첨부 |
PDF 다운로드
|
