Compact hierarchical IBE from lattices in the standard model

• Main Authors: ZHANG, Daode, FANG, Fuyang, LI, Bao, XUE, Haiyang, LIANG, Bei
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2017
• Subjects: Lattices; Hierarchical identity-based encryption; Selectively secure; Compact public parameters; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/9183; https://ink.library.smu.edu.sg/context/sis_research/article/10188/viewcontent/compact.pdf
• Institution: Singapore Management University

At Crypto’10, Agrawal et al. proposed a lattice-based selectively secure Hierarchical Identity-based Encryption (HIBE) scheme (ABB10b) with small ciphertext on the condition that (the length of identity at each level) is small in the standard model. In this paper, we present another lattice-based se...