TY - GEN
T1 - Flexibly and securely shape your data disclosed to others
AU - Xie, Qingqing
AU - Hou, Yantian
AU - Cheng, Ke
AU - Dagher, Gaby G.
AU - Wang, Liangmin
AU - Yu, Shucheng
N1 - Publisher Copyright:
© 2019 Association for Computing Machinery.
PY - 2019/7/2
Y1 - 2019/7/2
N2 - This work is to enhance existing fine-grained access control to support a more expressive access policy over arithmetic operation results. We aim to enable data owners to flexibly bind a user's identity with his/her authorized access target according to a given access control policy, which indicates how a piece of data obfuscated by different noises. To this end, we design a cryptographic primitive that decouples the noisy data to two components, one associated with user identity, and the other one shared and dynamically changes, with the composite of these two components evaluated and revealed at user sides. The security of our scheme is formally proven using game based approach.We implement our system on a commercial cloud platform and use extensive experiments to validate its functionality and performance.
AB - This work is to enhance existing fine-grained access control to support a more expressive access policy over arithmetic operation results. We aim to enable data owners to flexibly bind a user's identity with his/her authorized access target according to a given access control policy, which indicates how a piece of data obfuscated by different noises. To this end, we design a cryptographic primitive that decouples the noisy data to two components, one associated with user identity, and the other one shared and dynamically changes, with the composite of these two components evaluated and revealed at user sides. The security of our scheme is formally proven using game based approach.We implement our system on a commercial cloud platform and use extensive experiments to validate its functionality and performance.
KW - Fine-grained access control
KW - Homomorphic encryption
KW - Privacypreserving cloud computing
UR - http://www.scopus.com/inward/record.url?scp=85069954919&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069954919&partnerID=8YFLogxK
U2 - 10.1145/3321705.3329851
DO - 10.1145/3321705.3329851
M3 - Conference contribution
AN - SCOPUS:85069954919
T3 - AsiaCCS 2019 - Proceedings of the 2019 ACM Asia Conference on Computer and Communications Security
SP - 160
EP - 167
BT - AsiaCCS 2019 - Proceedings of the 2019 ACM Asia Conference on Computer and Communications Security
T2 - 2019 ACM Asia Conference on Computer and Communications Security, AsiaCCS 2019
Y2 - 9 July 2019 through 12 July 2019
ER -