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CLC number: TP309

On-line Access: 2011-10-08

Received: 2010-12-11

Revision Accepted: 2011-05-26

Crosschecked: 2011-09-01

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Journal of Zhejiang University SCIENCE C 2011 Vol.12 No.10 P.819-827


CCA2 secure biometric identity based encryption with constant-size ciphertext

Author(s):  Yang Yang, Yu-pu Hu, Le-you Zhang, Chun-hui Sun

Affiliation(s):  Department of Communication Engineering, Xidian University, Xi'an 710071, China, Department of Mathematics and Computer Science, Fuzhou University, Fuzhou 350002, China, Department of Mathematics Science, Xidian University, Xi'an 710071, China

Corresponding email(s):   yang.yang.research@gmail.com

Key Words:  Public key cryptography, Identity-based, Data security, Biometric, Encryption

Yang Yang, Yu-pu Hu, Le-you Zhang, Chun-hui Sun. CCA2 secure biometric identity based encryption with constant-size ciphertext[J]. Journal of Zhejiang University Science C, 2011, 12(10): 819-827.

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A1 - Yang Yang
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DOI - 10.1631/jzus.C1000429

We propose a new biometric identity based encryption scheme (Bio-IBE), in which user biometric information is used to generate the public key with a fuzzy extractor. This is the first Bio-IBE scheme that achieves constant size ciphertext. This is also a scheme that is secure against the adaptive chosen ciphertext attack (CCA2). Details are presented along with a discussion of Shamir’s threshold secret sharing and fuzzy extraction of biometrics, which is based on error correction codes. We also define a security model and prove that the security of the proposed scheme is reduced to the decisional bilinear Diffie-Hellman (DBDH) assumption. The comparison shows that the proposed scheme has better efficiency and stronger security compared with the available Bio-IBE schemes.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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