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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (10): 819-827    DOI: 10.1631/jzus.C1000429
    
CCA2 secure biometric identity based encryption with constant-size ciphertext
Yang Yang*,1,2, Yu-pu Hu1, Le-you Zhang3, Chun-hui Sun1
1 Department of Communication Engineering, Xidian University, Xi'an 710071, China 2 Department of Mathematics and Computer Science, Fuzhou University, Fuzhou 350002, China 3 Department of Mathematics Science, Xidian University, Xi\'an 710071, China
CCA2 secure biometric identity based encryption with constant-size ciphertext
Yang Yang*,1,2, Yu-pu Hu1, Le-you Zhang3, Chun-hui Sun1
1 Department of Communication Engineering, Xidian University, Xi'an 710071, China 2 Department of Mathematics and Computer Science, Fuzhou University, Fuzhou 350002, China 3 Department of Mathematics Science, Xidian University, Xi\'an 710071, China
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摘要： 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.
关键词： Public key cryptography;  Identity-based;  Data security;  Biometric;  Encryption    
Abstract: 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.
Key words: Public key cryptography    Identity-based    Data security    Biometric    Encryption
收稿日期: 2010-12-11 出版日期: 2011-10-08
CLC:  TP309  
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Yang Yang
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引用本文:

Yang Yang, Yu-pu Hu, Le-you Zhang, Chun-hui Sun. CCA2 secure biometric identity based encryption with constant-size ciphertext. Front. Inform. Technol. Electron. Eng., 2011, 12(10): 819-827.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1000429    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2011/V12/I10/819

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