Secure group communications using key graphs
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
Secure group communications using key graphs
IEEE/ACM Transactions on Networking (TON)
Efficient atomic broadcast using deterministic merge
Proceedings of the nineteenth annual ACM symposium on Principles of distributed computing
Design and evaluation of a wide-area event notification service
ACM Transactions on Computer Systems (TOCS)
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
MARKS: Zero Side Effect Multicast Key Management Using Arbitrarily Revealed Key Sequences
NGC '99 Proceedings of the First International COST264 Workshop on Networked Group Communication
ELK, a New Protocol for Efficient Large-Group Key Distribution
SP '01 Proceedings of the 2001 IEEE Symposium on Security and Privacy
A survey of key management for secure group communication
ACM Computing Surveys (CSUR)
Dynamic and efficient key management for access hierarchies
Proceedings of the 12th ACM conference on Computer and communications security
On Key Assignment for Hierarchical Access Control
CSFW '06 Proceedings of the 19th IEEE workshop on Computer Security Foundations
Provably-secure time-bound hierarchical key assignment schemes
Proceedings of the 13th ACM conference on Computer and communications security
Efficient techniques for realizing geo-spatial access control
ASIACCS '07 Proceedings of the 2nd ACM symposium on Information, computer and communications security
New constructions for provably-secure time-bound hierarchical key assignment schemes
Proceedings of the 12th ACM symposium on Access control models and technologies
Efficient communication-storage tradeoffs for multicast encryption
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 2
Collusion resistant broadcast encryption with short ciphertexts and private keys
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
The VersaKey framework: versatile group key management
IEEE Journal on Selected Areas in Communications
Incorporating temporal capabilities in existing key management schemes
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
| Hi-index | 0.00 |
Secure media broadcast over the Internet poses unique security challenges. One important problem for public broadcast location-based services (LBS) is to enforce access control on a large number of subscribers. In such a system, a user typically subscribes to an LBS for a time interval (a,b) and a spatial region (xbl, ybl, xtr, ytr) according to a 3-dimensional spatial-temporal authorization model. In this paper, we argue that current approaches to access control using key management protocols are not scalable. Our proposal, STauth, minimizes the number of keys that needs to be distributed and is thus scalable to a large number of subscribers and the dimensionality of the authorization model. We also demonstrate applications of our algorithm to quantified-temporal access control (using ∀ and ∃ quantifications) and partial-order tree-based authorization models. We describe two implementations of our key management protocols on two diverse platforms: a broadcast service operating on top of a publish/subscribe infrastructure and an extension to the Google Maps API to support quality (resolution)-based access control. We analytically and experimentally show the performance and scalability benefits of our approach over traditional key management approaches.