TY - JOUR
T1 - KTR
T2 - An efficient key management scheme for secure data access control in wireless broadcast services
AU - Gu, Qijun
AU - Peng, Liu
AU - Wang-Chien, Lee
AU - Chao-Hsien, Chu
N1 - Funding Information:
and CCR-0233324 and by a US Department of Energy Early Career PI Award. The work of Wang-Chien Lee was supported in part by the US NSF under Grants IIS-0328881, IIS-0534343, and CNS-0626709.
Funding Information:
This work was supported in part by the US National Science Foundation (NSF) under Grants ANI-0335241
PY - 2009
Y1 - 2009
N2 - Wireless broadcast is an effective approach for disseminating data to a number of users. To provide secure access to data in wireless broadcast services, symmetric-key-based encryption is used to ensure that only users who own the valid keys can decrypt the data. With regard to various subscriptions, an efficient key management for distributing and changing keys is in great demand for access control in broadcast services. In this paper, we propose an efficient key management scheme, namely, key tree reuse (KTR), to handle key distribution with regard to complex subscription options and user activities. KTR has the following advantages. First, it supports all subscription activities in wireless broadcast services. Second, in KTR, a user only needs to hold one set of keys for all subscribed programs instead of separate sets of keys for each program. Third, KTR identifies the minimum set of keys that must be changed to ensure broadcast security and minimize the rekey cost. Our simulations show that KTR can save about 45 percent of communication overhead in the broadcast channel and about 50 percent of decryption cost for each user compared with logical-key-hierarchy-based approaches.
AB - Wireless broadcast is an effective approach for disseminating data to a number of users. To provide secure access to data in wireless broadcast services, symmetric-key-based encryption is used to ensure that only users who own the valid keys can decrypt the data. With regard to various subscriptions, an efficient key management for distributing and changing keys is in great demand for access control in broadcast services. In this paper, we propose an efficient key management scheme, namely, key tree reuse (KTR), to handle key distribution with regard to complex subscription options and user activities. KTR has the following advantages. First, it supports all subscription activities in wireless broadcast services. Second, in KTR, a user only needs to hold one set of keys for all subscribed programs instead of separate sets of keys for each program. Third, KTR identifies the minimum set of keys that must be changed to ensure broadcast security and minimize the rekey cost. Our simulations show that KTR can save about 45 percent of communication overhead in the broadcast channel and about 50 percent of decryption cost for each user compared with logical-key-hierarchy-based approaches.
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U2 - 10.1109/TDSC.2008.12
DO - 10.1109/TDSC.2008.12
M3 - Article
AN - SCOPUS:69249144890
SN - 1545-5971
VL - 6
SP - 188
EP - 201
JO - IEEE Transactions on Dependable and Secure Computing
JF - IEEE Transactions on Dependable and Secure Computing
IS - 3
M1 - 4453832
ER -