CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Digital signets: self-enforcing protection of digital information (preliminary version)
STOC '96 Proceedings of the twenty-eighth annual ACM symposium on Theory of computing
Key Preassigned Traceability Schemes for Broadcast Encryption
SAC '98 Proceedings of the Selected Areas in Cryptography
The LSD Broadcast Encryption Scheme
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Short Signatures from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Fault tolerant and distributed broadcast encryption
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
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This paper presents a new efficient identity-based broadcast encryption scheme using bilinear mapping. Both private-key storage for one authorized user (only two group elements) and communication transmission bandwidth (three group elements) in our scheme are of constant size regardless of the number of colluders. In terms of efficiency and security, our scheme is very efficient with lower encryption and decryption computational cost and more secure against k number of colluders by introducing self-enforcing protection strategy.