TY - GEN
T1 - Context-related access control for mobile caching
AU - Xu, Zhi
AU - Bai, Kun
AU - Zhu, Sencun
AU - Liu, Leslie
AU - Moulic, Randy
PY - 2012
Y1 - 2012
N2 - Mobile caching is a popular technique that has been widely applied in mobile applications to reduce the bandwidth usage, battery consumption, and perceived lag. To protect the confidentiality of cached data, the data with sensitive information has to be encrypted as it is cached on mobile devices. Currently, several mobile platforms provide encryption utilities which allow mobile applications to encrypt their local caches. However, existing encryption utilities are too coarse-grained and not directly applicable to dynamically enforcing fine-grained context-related access control policies in context-aware mobile applications. In this paper, we first show the necessity of new encryption schemes in context-aware mobile applications by examples, and then propose three encryption schemes for enforcing context-related access control policies on cached data. The proposed encryption schemes adopt different cryptographic techniques. By comparing the cache hit rate and communication gain, we analyze the impact of applying the proposed schemes to the efficiency of the existing mobile cache management algorithm in context-aware mobile applications. Further, we evaluate the performance of these schemes through extensive simulations, and suggest the suitable application scenarios for each scheme.
AB - Mobile caching is a popular technique that has been widely applied in mobile applications to reduce the bandwidth usage, battery consumption, and perceived lag. To protect the confidentiality of cached data, the data with sensitive information has to be encrypted as it is cached on mobile devices. Currently, several mobile platforms provide encryption utilities which allow mobile applications to encrypt their local caches. However, existing encryption utilities are too coarse-grained and not directly applicable to dynamically enforcing fine-grained context-related access control policies in context-aware mobile applications. In this paper, we first show the necessity of new encryption schemes in context-aware mobile applications by examples, and then propose three encryption schemes for enforcing context-related access control policies on cached data. The proposed encryption schemes adopt different cryptographic techniques. By comparing the cache hit rate and communication gain, we analyze the impact of applying the proposed schemes to the efficiency of the existing mobile cache management algorithm in context-aware mobile applications. Further, we evaluate the performance of these schemes through extensive simulations, and suggest the suitable application scenarios for each scheme.
UR - http://www.scopus.com/inward/record.url?scp=84869595536&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869595536&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-31909-9_22
DO - 10.1007/978-3-642-31909-9_22
M3 - Conference contribution
AN - SCOPUS:84869595536
SN - 9783642319082
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
SP - 389
EP - 408
BT - Security and Privacy in Communication Networks - 7th International ICST Conference, SecureComm 2011, Revised Selected Papers
T2 - 7th International ICST Conference on Security and Privacy in Communication Networks, SecureComm 2011
Y2 - 7 September 2011 through 9 September 2011
ER -