Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
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
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Universal Hash Proofs and a Paradigm for Adaptive Chosen Ciphertext Secure Public-Key Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Efficient Trace and Revoke Schemes
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
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
Efficiency improvements for signature schemes with tight security reductions
Proceedings of the 10th 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
Space-Efficient Identity Based EncryptionWithout Pairings
FOCS '07 Proceedings of the 48th Annual IEEE Symposium on Foundations of Computer Science
Tackling adaptive corruptions in multicast encryption protocols
TCC'07 Proceedings of the 4th conference on Theory of cryptography
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
Multi-receiver identity-based key encapsulation with shortened ciphertext
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
Efficient multi-receiver identity-based encryption and its application to broadcast encryption
PKC'05 Proceedings of the 8th international conference on Theory and Practice in Public Key Cryptography
Efficient key encapsulation to multiple parties
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
Collusion resistant broadcast encryption with short ciphertexts and private keys
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Hierarchical identity based encryption with constant size ciphertext
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Practical identity-based encryption without random oracles
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Fully collusion resistant traitor tracing with short ciphertexts and private keys
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Efficient identity-based key encapsulation to multiple parties
IMA'05 Proceedings of the 10th international conference on Cryptography and Coding
Generalized key delegation for hierarchical identity-based encryption
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Attribute-Based Encryption Supporting Direct/Indirect Revocation Modes
Cryptography and Coding '09 Proceedings of the 12th IMA International Conference on Cryptography and Coding
Building efficient fully collusion-resilient traitor tracing and revocation schemes
Proceedings of the 17th ACM conference on Computer and communications security
Proceedings of the 17th ACM conference on Computer and communications security
SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
How to construct interval encryption from binary tree encryption
ACNS'10 Proceedings of the 8th international conference on Applied cryptography and network security
Threshold public-key encryption with adaptive security and short ciphertexts
ICICS'10 Proceedings of the 12th international conference on Information and communications security
Round-optimal deniable ring authentication in the presence of big brother
WISA'10 Proceedings of the 11th international conference on Information security applications
Functional encryption: definitions and challenges
TCC'11 Proceedings of the 8th conference on Theory of cryptography
Computer Networks: The International Journal of Computer and Telecommunications Networking
Security notions for broadcast encryption
ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
Fully distributed broadcast encryption
ProvSec'11 Proceedings of the 5th international conference on Provable security
Identity-based trace and revoke schemes
ProvSec'11 Proceedings of the 5th international conference on Provable security
Poster: attribute based broadcast encryption with permanent revocation
Proceedings of the 18th ACM conference on Computer and communications security
Fully CCA2 secure identity-based broadcast encryption with black-box accountable authority
Journal of Systems and Software
PKC'10 Proceedings of the 13th international conference on Practice and Theory in 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
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
Provably secure threshold public-key encryption with adaptive security and short ciphertexts
Information Sciences: an International Journal
Cryptographic treatment of private user profiles
FC'11 Proceedings of the 2011 international conference on Financial Cryptography and Data Security
Anonymous broadcast encryption: adaptive security and efficient constructions in the standard model
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
Outsider-Anonymous broadcast encryption with sublinear ciphertexts
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
Variants of waters' dual system primitives using asymmetric pairings
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
Adaptive CCA broadcast encryption with constant-size secret keys and ciphertexts
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
Towards secure and communication-efficient broadcast encryption systems
Journal of Network and Computer Applications
Decentralized dynamic broadcast encryption
SCN'12 Proceedings of the 8th international conference on Security and Cryptography for Networks
Time-Specific encryption from forward-secure encryption
SCN'12 Proceedings of the 8th international conference on Security and Cryptography for Networks
Non-interactive dynamic identity-based broadcast encryption without random oracles
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
Complete tree subset difference broadcast encryption scheme and its analysis
Designs, Codes and Cryptography
Direct CCA secure identity-based broadcast encryption
NSS'12 Proceedings of the 6th international conference on Network and System Security
Accountable authority identity-based encryption with public traceability
CT-RSA'13 Proceedings of the 13th international conference on Topics in Cryptology
Anonymous lattice-based broadcast encryption
ICT-EurAsia'13 Proceedings of the 2013 international conference on Information and Communication Technology
Multi-channel broadcast encryption
Proceedings of the 8th ACM SIGSAC symposium on Information, computer and communications security
Fast transmission to remote cooperative groups: a new key management paradigm
IEEE/ACM Transactions on Networking (TON)
Server-aided identity-based anonymous broadcast encryption
International Journal of Security and Networks
CP2: Cryptographic privacy protection framework for online social networks
Computers and Electrical Engineering
Journal of Computational and Applied Mathematics
Broadcast encryption based non-interactive key distribution in MANETs
Journal of Computer and System Sciences
Anonymous broadcast encryption with an untrusted gateway
International Journal of Security and Networks
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We present new techniques for achieving adaptive security in broadcast encryption systems. Previous work on fully collusion resistant broadcast encryption systems with very short ciphertexts was limited to considering only static security. First, we present a new definition of security that we call semi-static security and show a generic "two-key" transformation from semi-statically secure systems to adaptively secure systems that have comparable-size ciphertexts. Using bilinear maps, we then construct broadcast encryption systems that are semi-statically secure in the standard model and have constant-size ciphertexts. Our semi-static constructions work when the number of indices or identifiers in the system is polynomial in the security parameter. For identity-based broadcast encryption, where the number of potential indices or identifiers may be exponential, we present the first adaptively secure system with sublinear ciphertexts. We prove security in the standard model.