CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Revocation and Tracing Schemes for Stateless Receivers
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
A Practical Public Key Cryptosystem Provably Secure Against Adaptive Chosen Ciphertext Attack
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Public Key Trace and Revoke Scheme Secure against Adaptive Chosen Ciphertext Attack
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
A Concrete Security Treatment of Symmetric Encryption
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Tree-based group key agreement
ACM Transactions on Information and System Security (TISSEC)
Proceedings of the 11th ACM conference on Computer and communications security
A fully collusion resistant broadcast, trace, and revoke system
Proceedings of the 13th ACM conference on Computer and communications security
Scalable Protocols for Authenticated Group Key Exchange
Journal of Cryptology
Asymmetric Group Key Agreement
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
Adaptive Security in Broadcast Encryption Systems (with Short Ciphertexts)
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
Group Key Exchange Enabling On-Demand Derivation of Peer-to-Peer Keys
ACNS '09 Proceedings of the 7th International Conference on Applied Cryptography and Network Security
A secure and scalable Group Key Exchange system
Information Processing Letters
Using hash functions as a hedge against chosen ciphertext attack
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
A group key distribution scheme with decentralised user join
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
Identity-based broadcast encryption with constant size ciphertexts and private keys
ASIACRYPT'07 Proceedings of the Advances in Crypotology 13th international conference on Theory and application of cryptology and information security
Security notions for broadcast encryption
ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
Password-Based authenticated key exchange in the three-party setting
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Improved efficiency for CCA-secure cryptosystems built using identity-based encryption
CT-RSA'05 Proceedings of the 2005 international conference on Topics in Cryptology
Chosen-ciphertext security of multiple encryption
TCC'05 Proceedings of the Second international conference on Theory of Cryptography
Flexible group key exchange with on-demand computation of subgroup keys
AFRICACRYPT'10 Proceedings of the Third international conference on Cryptology in Africa
The Twist-AUgmented technique for key exchange
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
Bridging broadcast encryption and group key agreement
ASIACRYPT'11 Proceedings of the 17th international conference on The Theory and Application of Cryptology and Information Security
New directions in cryptography
IEEE Transactions on Information Theory
A public key cryptosystem and a signature scheme based on discrete logarithms
IEEE Transactions on Information Theory
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
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A broadcast encryption system generally involves three kinds of entities: the group manager that deals with the membership, the encryptor that encrypts the data to the registered users according to a specific policy (the target set), and the users that decrypt the data if they are authorized by the policy. Public-key broadcast encryption can be seen as removing this special role of encryptor, by allowing anybody to send encrypted data. In this paper, we go a step further in the decentralization process, by removing the group manager: the initial setup of the group, as well as the addition of further members to the system, do not require any central authority. Our construction makes black-box use of well-known primitives and can be considered as an extension to the subset-cover framework. It allows for efficient concrete instantiations, with parameter sizes that match those of the subset-cover constructions, while at the same time achieving the highest security level in the standard model under the DDH assumption.