• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Zhang, Yanhua (Zhang, Yanhua.) [1] | Liu, Ximeng (Liu, Ximeng.) [2] (Scholars:刘西蒙) | Hu, Yupu (Hu, Yupu.) [3] | Jia, Huiwen (Jia, Huiwen.) [4]

Indexed by:

EI

Abstract:

Revocable identity-based encryption (RIBE) with server-aided ciphertext evolution (RIBE-CE), recently proposed by Sun et al. at TCS 2020, offers significant advantages over previous identity (or key) revocation mechanisms when considering the scenario of a secure data sharing in the cloud setting. In this new system model, the user (i.e., a recipient) can utilize the current short-term decryption key to decrypt all ciphertexts sent to him, meanwhile, the ciphertexts in the cloud evolve to new ones with the aided of the cloud server and the old ones are completely deleted, and thus, the revoked users cannot access to both the previously and subsequently shared data. In this paper, inspired by Sun et al.’s work, we propose the first lattice-based RIBE-CE. Our scheme is more efficient and secure than the existing constructions of lattice-based RIBE. Simultaneously, the private key generator (PKG) maintains a binary tree (BT) to handle key revocation only with a logarithmic complexity workload in time key update, not growing linearly in the numbers of system users N, which serves as one solution to the challenge proposed by Sun et al. and based on the hardness of the learning with errors (LWE) problem, we prove that our first scheme is selectively secure in the standard model. Subsequently, based on the main techniques for lattice basis delegation with hierarchical IBE (HIBE), we construct our second lattice-based RIBE-CE scheme with decryption key exposure resistance (DKER), a default security requirement for RIBE, which has not been considered by Sun et al. © 2021, Springer Nature Switzerland AG.

Keyword:

Binary trees Cryptography Security of data

Community:

  • [ 1 ] [Zhang, Yanhua]Zhengzhou University of Light Industry, Zhengzhou; 450001, China
  • [ 2 ] [Liu, Ximeng]Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Hu, Yupu]Xidian University, Xi’an; 710071, China
  • [ 4 ] [Jia, Huiwen]Guangzhou University, Guangzhou; 510006, China

Reprint 's Address:

Email:

Show more details

Related Keywords:

Source :

ISSN: 0302-9743

Year: 2021

Volume: 13007 LNCS

Page: 442-465

Language: English

0 . 4 0 2

JCR@2005

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

Online/Total:350/10032704
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1