TY - GEN
T1 - A new public key broadcast encryption using Boneh-Boyen-Goh's HIBE scheme
AU - Park, Jong Hwan
AU - Lee, Dong Hoon
N1 - Funding Information:
This research was supported by the MIC(Ministry of Information and Communication), Korea, under the ITRC(Information Technology Research Center) support program supervised by the IITA(Institute of Information Technology Advancement) (IITA-2008-(C1090-0801-0025)).
PY - 2008
Y1 - 2008
N2 - We offer an alternative Public Key Broadcast Encryption (PKBE) scheme which is fully collusion-secure. Our construction is based on the method for generating private keys in the Boneh, Boyen and Goh's hierarchical identity-based encryption scheme. Our scheme provides a trade-off between ciphertext size and public key size. With appropriate parametrization we achieve a PKBE scheme where both ciphertexts and private keys are sublinear size for any subset of receivers. Private keys shrink as revoked users increase, and public key size is more reduced than other PKBE schemes. We extend our scheme to obtain chosen ciphertext security by using hash-based method.
AB - We offer an alternative Public Key Broadcast Encryption (PKBE) scheme which is fully collusion-secure. Our construction is based on the method for generating private keys in the Boneh, Boyen and Goh's hierarchical identity-based encryption scheme. Our scheme provides a trade-off between ciphertext size and public key size. With appropriate parametrization we achieve a PKBE scheme where both ciphertexts and private keys are sublinear size for any subset of receivers. Private keys shrink as revoked users increase, and public key size is more reduced than other PKBE schemes. We extend our scheme to obtain chosen ciphertext security by using hash-based method.
KW - Full Collusion-Security
KW - Public Key Broadcast Encryption
UR - http://www.scopus.com/inward/record.url?scp=41549165741&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-79104-1_8
DO - 10.1007/978-3-540-79104-1_8
M3 - Conference contribution
AN - SCOPUS:41549165741
SN - 3540791035
SN - 9783540791034
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 101
EP - 115
BT - Information Security Practice and Experience - 4th International Conference, ISPEC 2008, Proceedings
T2 - 4th Information Security Practice and Experience Conference, ISPEC 2008
Y2 - 21 April 2008 through 23 April 2008
ER -