TY - GEN
T1 - Toward 3-Constant size identity based broadcast encryption based on proxy re-encryption
AU - Wang, Xu An
AU - Guo, Duntao
AU - Zhong, Weidong
AU - Yang, Xiaoyuan
PY - 2010
Y1 - 2010
N2 - 3-Constant size identity based broadcast encryption means identity based broadcast encryption with constant size ciphertext, public key and private key. Identity based broadcast encryption schemes enable senders to efficiently broadcast ciphertexts to a large set of receivers in a way that only non-revoked receivers can decrypt them. Until now, the best broadcast encryption can only achieve O(n)-size public key, constant size ciphertext and constant size private key or O(√ n)-size public key, O(√ n)-size ciphertexts and constant size private key, which proposed by Boneh, Gentry and Waters in Eurocrypt'05. Naturally, we ask this question: can we construct constant size ciphertext, public key and private key broadcast encryption? It seems very difficult to gain this result. However, when we considering identity based broadcast encryption, this result can be gained. In particular, in this paper we show how to construct 3-constant size identity based broadcast encryption based on identity based proxy re-encryption with the help PKG.
AB - 3-Constant size identity based broadcast encryption means identity based broadcast encryption with constant size ciphertext, public key and private key. Identity based broadcast encryption schemes enable senders to efficiently broadcast ciphertexts to a large set of receivers in a way that only non-revoked receivers can decrypt them. Until now, the best broadcast encryption can only achieve O(n)-size public key, constant size ciphertext and constant size private key or O(√ n)-size public key, O(√ n)-size ciphertexts and constant size private key, which proposed by Boneh, Gentry and Waters in Eurocrypt'05. Naturally, we ask this question: can we construct constant size ciphertext, public key and private key broadcast encryption? It seems very difficult to gain this result. However, when we considering identity based broadcast encryption, this result can be gained. In particular, in this paper we show how to construct 3-constant size identity based broadcast encryption based on identity based proxy re-encryption with the help PKG.
KW - 3-Constant size
KW - Identity based broadcast encryption
KW - Proxy reencryption
UR - https://www.scopus.com/pages/publications/77956166926
U2 - 10.1109/IEEC.2010.5533296
DO - 10.1109/IEEC.2010.5533296
M3 - 会议稿件
AN - SCOPUS:77956166926
SN - 9781424469741
T3 - 2010 2nd International Symposium on Information Engineering and Electronic Commerce, IEEC 2010
SP - 269
EP - 272
BT - 2010 2nd International Symposium on Information Engineering and Electronic Commerce, IEEC 2010
T2 - 2nd International Symposium on Information Engineering and Electronic Commerce, IEEC2010
Y2 - 23 July 2010 through 25 July 2010
ER -