1Yun A, Shi C, Kim Y. On protecting integrity and confidentiality of cryptographic file system for outsourced storage [C] //Proc of ACM Workshop Cloud Computing Security (CCSW 2009). New York: ACM, 2009:67-76.
3Vrable M, Savage S, Voelker G M. Cumulus: Filesystem Backup to the cloud [J]. ACM Trans on Storage, 2009, 5 (4): 1-28.
4Cramer R, Shoup V. Design and analysis of practical public- key eneryption schemes secure against adaptive chosen ciphertext attack [J]. SIAM Journal on Computing, 2004, 33(1) : 167-226.
5Hofheinz D, Eike K. Secure hybrid encryption from weakened key encapsulation [G] //LNCS 4622: Proc of CRYPTO 2007. Berlin: Springer,2007: 553-571.
6Blaze M, Bleumer G, Strauss M. Divertible protocols and atomic proxy cryptography [G] //LNCS 1403: Proc of EUROCRYPT 1998. Berlin.. Springer, 1998:127-144.
7Ateniese G, Fu K, Green M, et al. Improved proxy re- encryption schemes with applications to secure distributed storage [J]. ACM Trans on Information and System Security, 2006, 9(1): 1-30.
8Green M, Ateniese G. Identity-based proxy re-encryption[G] //LNCS 4521: Proc of the 5th Applied Cryptography and Network Security Conf. Berlin: Springer, 2007: 288- 306.
9Hohenberger S, Rothblum G, Shelat A, et al. Securely obfuscating reencryption [C] //Proc of the 4th Theory of Cryptography Conf. Berlin: Springer, 2007:233-252.
10Canetti R, Hohenherger S. Chosen-ciphertext secure proxy re-encryption [C] //Proc of ACM CCS 2007. New York: ACM, 2007:185-194.
