Title :
Chosen Ciphertext Secure Fuzzy Identity-Based Encryption Scheme with Short Ciphertext
Author :
Shi, Wenbo ; Jang, Injoo ; Yoo, Hyeong Seon
Author_Institution :
Sch. of Comput. Sci. & Eng., Inha Univ., Incheon, South Korea
Abstract :
In this paper, we present an improved biometric identity based encryption scheme which is based on Baek et al´s scheme. By using fuzzy extractor to construct the public key of a user, we reduce the number of exponentiations of encryption algorithm, the number of MaptoPoint hash function and the length of ciphertext from O(n) to O(1). Furthermore, we proved the proposed scheme satisfy the security requirement under indistinguishability of encryptions under fuzzy selective-ID, chosen ciphertext attack (IND-FSIDCCA).
Keywords :
biometrics (access control); cryptography; fuzzy systems; MaptoPoint hash function; biometrics; chosen ciphertext attack; fuzzy extractor; fuzzy selective ID; secure fuzzy identity based encryption scheme; short ciphertext; user public key; Biometrics; Computer science; Cryptography; Identity-based encryption; Information technology; Protocols; Public key; Random number generation; Security; Telephony; Biometrics; fuzzy IBE;
Conference_Titel :
Computer Sciences and Convergence Information Technology, 2009. ICCIT '09. Fourth International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-5244-6
Electronic_ISBN :
978-0-7695-3896-9
DOI :
10.1109/ICCIT.2009.157
