Fuzzy Techniques in Biometric IBE without Random Oracles
Using a biometric as an identity has the advantage that identities are unique if the underlying biometric is of a good quality, such as fingerprints, faces, irises. Since biometric measurements are noisy, the existing identity-based encryption systems cannot be used directly to construct IBE scheme. The error-tolerance property of Fuzzy-IBE allows for a private key to decrypt a ciphertext encrypted with a slightly different measurement of the same biometric. Based on this property, a new biometric identity based encryption scheme is proposed. Our scheme is constructed in the standard model and achieves a selective identity security. In addition, the security of our scheme is reduced to decision bilinear Diffie-Hellman(BDH) assumption instead of other strong assumptions.
Fuzzy biometric identity-based encryption error-tolerance standard model decision BDH assumption
WUQing
School of Automation, Xian University of Posts and Telecommunications, Xian, 710121, China
国际会议
大连
英文
112-115
2011-10-19（万方平台首次上网日期，不代表论文的发表时间）