山东大学学报(理学版)
山東大學學報(理學版)
산동대학학보(이학판)
JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE)
2014年
9期
17-23
,共7页
吕洋%张功萱%杨文%王天舒
呂洋%張功萱%楊文%王天舒
려양%장공훤%양문%왕천서
指纹%可变参数%密钥拆分%多模糊金库%可撤销性
指紋%可變參數%密鑰拆分%多模糊金庫%可撤銷性
지문%가변삼수%밀약탁분%다모호금고%가철소성
fingerprint%variable parameters%key separation%muti-fuzzy vault%revocability
Fuzzy Vault算法的安全性主要依赖于指纹模板的安全性以及上锁算法的复杂性。利用可变参数的函数式对原始指纹特征值进行数学变换,生成随机的指纹特征值。同时通过密钥拆分的方法形成多模糊金库,使得多用户共同管理金库,实现了指纹模板的可撤销性,从而提高了原有模糊金库算法的安全性能。
Fuzzy Vault算法的安全性主要依賴于指紋模闆的安全性以及上鎖算法的複雜性。利用可變參數的函數式對原始指紋特徵值進行數學變換,生成隨機的指紋特徵值。同時通過密鑰拆分的方法形成多模糊金庫,使得多用戶共同管理金庫,實現瞭指紋模闆的可撤銷性,從而提高瞭原有模糊金庫算法的安全性能。
Fuzzy Vault산법적안전성주요의뢰우지문모판적안전성이급상쇄산법적복잡성。이용가변삼수적함수식대원시지문특정치진행수학변환,생성수궤적지문특정치。동시통과밀약탁분적방법형성다모호금고,사득다용호공동관리금고,실현료지문모판적가철소성,종이제고료원유모호금고산법적안전성능。
The security of Fuzzy Vault algorithm depends on the fingerprint template and the locking algorithm.By using the functions with variable parameters to transform the original values of fingerprint characteristics,a random value of fingerprint characteristic was generated.Also the multi-fuzzy vaults were formed by the key separation which allows more users to manage the fuzzy vaults together.Thus,the revocability of the fingerprint template was achieved and then the security of the original algorithm was improved.