通信学报 ›› 2018, Vol. 39 ›› Issue (2): 122-134.doi: 10.11959/j.issn.1000-436x.2018031

• 学术论文 • 上一篇    下一篇

基于重加密的随机映射指纹模板保护方案

贾姗1,2,徐正全1,2,胡传博1,2,王豪1,2   

  1. 1 武汉大学测绘遥感信息工程国家重点实验室,湖北 武汉 430079
    2 武汉大学地球空间信息技术协同创新中心,湖北 武汉 430079
  • 修回日期:2018-01-13 出版日期:2018-02-01 发布日期:2018-03-28
  • 作者简介:贾姗(1993-),女,山东莱芜人,武汉大学博士生,主要研究方向为信息安全、生物特征识别。|徐正全(1962-),男,湖北黄冈人,博士,武汉大学教授,主要研究方向为信息安全、隐私保护、图像处理等。|胡传博(1989-),男,黑龙江哈尔滨人,武汉大学博士生,主要研究方向为计算机视觉、空间信息处理。|王豪(1990-),男,河南驻马店人,武汉大学博士生,主要研究方向为数据挖掘、隐私保护。
  • 基金资助:
    武汉市应用基础研究计划基金资助项目(2017010201010114);国家自然科学基金资助项目(41671443);国家自然科学基金资助项目(41571426);国家重点基础研究发展计划(“973”计划)基金资助项目(2011CB302306)

Fingerprint template protection by adopting random projection based on re-encryption

Shan JIA1,2,Zhengquan XU1,2,Chuanbo HU1,2,Hao WANG1,2   

  1. 1 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China
    2 Collaborative Innovation Center for Geospatial Technology,Wuhan University,Wuhan 430079,China
  • Revised:2018-01-13 Online:2018-02-01 Published:2018-03-28
  • Supported by:
    Applied Basic Research Program of Wuhan(2017010201010114);The National Natural Science Foundation of China(41671443);The National Natural Science Foundation of China(41571426);The National Basic Research Program of China (973 Program)(2011CB302306)

摘要:

针对基于随机映射(RP,random projection)的生物特征模板保护算法在模板生成和密钥管理中面临易被攻击而泄露用户隐私的问题,提出一种改进RP算法的指纹模板保护方案。首先,在随机映射的基础上,将变换域划分为相互独立的指纹特征匹配域和加噪干扰域;在子域内加噪后利用子随机映射矩阵交叉融合生成模板。同时,引入重加密机制实现对变换密钥(RP矩阵)的安全存储和传输。实验结果和分析表明,与现有的RP模板保护方法相比,所提方案具有更高的抵抗攻击能力并能保持RP算法的匹配性能和模板可撤销性。

关键词: 指纹隐私保护, 随机映射, 重加密, 安全认证

Abstract:

In random projection (RP) based biometric template protection methods,the generated template and key are vulnerable to attacks,which may cause the leakage of users’ privacy.To solve this problem,an improved RP-based fingerprint template protection method was proposed.First,based on the RP result,the proposed method divided the projection domain into fingerprint matching domain and noise adding domain that were mutually independent,then fused them with two sub-matrices of the random projection matrix and saved the result as template.In addition,re-encryption mechanism was introduced to realize secure storage and transmission of the key (RP matrix).Experimental results show that the proposed method can achieve stronger ability to resist different attacks than existing RP-based biometric template protection methods,and also guarantee high matching accuracy and revocation.

Key words: fingerprint privacy protection, random projection, re-encryption, secure authentication

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