Title :
Chosen-Ciphertext Secure Multi-Authority Fuzzy Identity-Based Key Encapsulation without ROM
Author :
Fang, Liming ; Wang, Jiandong ; Ren, Yongjun ; Xia, Jinyue ; Bian, Shizhu
Author_Institution :
Coll. of Inf. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
We present the first and efficient multi-authority fuzzy identity-based key encapsulation mechanism (fuzzy-IB-KEM) scheme which is chosen ciphertext secure (CCA) without random oracle in the selective-ID model. Our main idea is to enhance Chase\´s "large universe" construction, chosen-plaintext secure (CPA) fuzzy-IBE, by adding some redundant information to the ciphertext to make it CCA-secure.
Keywords :
data encapsulation; fuzzy set theory; public key cryptography; chosen-ciphertext secure multiauthority fuzzy identity-based key encapsulation; chosen-plaintext secure fuzzy-IBE scheme; fuzzy-IB-KEM scheme; public key cryptography; random oracle; selective-ID model; Computational intelligence; Cryptography; Educational institutions; Encapsulation; Identity-based encryption; Information security; Monitoring; Polynomials; Public key; Read only memory;
Conference_Titel :
Computational Intelligence and Security, 2008. CIS '08. International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-0-7695-3508-1
DOI :
10.1109/CIS.2008.32
