Efficient hierarchical identity based encryption scheme in the standard model over lattices

• Published in: Frontiers of information technology & electronic engineering Vol. 17; no. 8; pp. 781 - 791
• Main Authors: Wang, Feng-he, Wang, Chun-xiao, Liu, Zhen-hua
• Format: Journal Article
• Language: English
• Published: Hangzhou Zhejiang University Press 01.08.2016; Springer Nature B.V
• Subjects: Algorithms; Communications Engineering; Computer Hardware; Computer Science; Computer Systems Organization and Communication Networks; Construction standards; Electrical Engineering; Electronic engineering; Electronics and Microelectronics; Encryption; Hardness; Information technology; Instrumentation; Lattices; Learning; Mathematical models; Messages; Networks; 公共密钥; 分层基; 分配规则; 加密方案; 扩展因子; 标准模型; 矩阵和; 选择明文攻击; Standard model; Gaussian; Lattice-based cryptography; TP309; Hierarchical identity based encryption scheme; Learning with errors problem

Using lattice basis delegation in a fixed dimension, we propose an efficient lattice-based hierarchical identity based encryption（HIBE） scheme in the standard model whose public key size is only（dm^2＋ mn） log q bits and whose message-ciphertext expansion factor is only log q, where d is the maximum...