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

fYear

2009

fDate

24-26 Nov. 2009

Firstpage

1036

Lastpage

1040

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICCIT.2009.157

Filename

5368763