TY - GEN
T1 - Proxy re-signature schemes without random oracles
AU - Shao, Jun
AU - Cao, Zhenfu
AU - Wang, Licheng
AU - Liang, Xiaohui
PY - 2007
Y1 - 2007
N2 - To construct a suitable and secure proxy re-signature scheme is not an easy job, up to now, there exist only three schemes, one is proposed by Blaze et al. [6] at EUROCRYPT 1998, and the others are proposed by Ateniese and Hohenberger [2] at ACM CCS 2005. However, none of these schemes is proved in the standard model (i.e., do not rely on the random oracle heuristic). In this paper, based on Waters' approach [20], we first propose a multi-use bidirectional proxy re-signature scheme, denoted as Smb, which is existentially unforgeable in the standard model. And then, we extend Smb to be a multi-use bidirectional ID-based proxy re-signature scheme, denoted by S id-mb, which is also existentially unforgeable in the standard model. Both of these two proposed schemes are computationally efficient, and their security bases on the Computational Diffie-Hellman (CDH) assumption.
AB - To construct a suitable and secure proxy re-signature scheme is not an easy job, up to now, there exist only three schemes, one is proposed by Blaze et al. [6] at EUROCRYPT 1998, and the others are proposed by Ateniese and Hohenberger [2] at ACM CCS 2005. However, none of these schemes is proved in the standard model (i.e., do not rely on the random oracle heuristic). In this paper, based on Waters' approach [20], we first propose a multi-use bidirectional proxy re-signature scheme, denoted as Smb, which is existentially unforgeable in the standard model. And then, we extend Smb to be a multi-use bidirectional ID-based proxy re-signature scheme, denoted by S id-mb, which is also existentially unforgeable in the standard model. Both of these two proposed schemes are computationally efficient, and their security bases on the Computational Diffie-Hellman (CDH) assumption.
KW - Bilinear maps
KW - Existential unforgeability
KW - ID-based
KW - Proxy re-signature
KW - Standard model
UR - https://www.scopus.com/pages/publications/38349051240
U2 - 10.1007/978-3-540-77026-8_15
DO - 10.1007/978-3-540-77026-8_15
M3 - 会议稿件
AN - SCOPUS:38349051240
SN - 9783540770251
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 197
EP - 209
BT - Progress in Cryptology - INDOCRYPT 2007 - 8th International Conference on Cryptology in India, Proceedings
PB - Springer Verlag
T2 - 8th Annual International Conference on Cryptolology in India, INDOCRYPT 2007
Y2 - 9 December 2007 through 13 December 2007
ER -