选择密文短密文安全模糊身份加密方案

2009 Fourth International Conference on Computer Sciences and Convergence Information Technology Pub Date : 2009-11-24 DOI:10.1109/ICCIT.2009.157

Wenbo Shi, Injoo Jang, H. Yoo

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引用次数: 1

摘要

本文在Baek等人的基础上提出了一种改进的基于生物特征身份的加密方案。利用模糊提取器构造用户公钥，将加密算法的幂次数、maptoppoint哈希函数的个数和密文的长度从0 (n)减少到O(1)。此外，我们还证明了该方案能够满足模糊选择id、选择密文攻击(IND-FSIDCCA)下加密不可区分的安全性要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Chosen Ciphertext Secure Fuzzy Identity-Based Encryption Scheme with Short Ciphertext

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).

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来源期刊

2009 Fourth International Conference on Computer Sciences and Convergence Information Technology

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