Double layer secure sketch

Abstract

A sketch of two and three bodies AIP Conf.Abstract. Secure sketch has been applied successfully in a wide variety of applications like cryptography, biometric authentication systems and so on. All of these secure sketches have properties in common namely error-tolerance and small entropy loss. The former ensures an input set wc can unlock the system if wc is substantially overlapped with a template set w while the latter means it is hard for an adversary to get the information of w even with the knowledge of s , which is produced by w and stored in the system publicly. In their constructions, they all consider w as a set of atomic elements. However, in the real word, it is very likely the elements in the template set are sets as well. In this paper, we propose a double layer secure sketch to address this issue.

A New Biocryptosystem-Oriented Security Analysis Framework and Implementation of Multibiometric Cryptosystems Based on Decision Level Fusion

“…In contrast, MBCD avoid the difficulty of biometric feature unification and can retain the advantages of each biometric and its corresponding cryptosystem construction. Moreover, MBCD are more extensible and can better meet the requirements of some scenarios [40] and applications. While Fu et al [13] theoretically analyze the template privacy, key security and accuracy of MBCD, they do not propose a system implementation.…”

Attacks via record multiplicity on cancelable biometrics templates

“…In the past decade, new biometric protection solutions have been developed [3,[12][13][14][15][16][17], among which cancelable biometrics is an effective and widely applied one [18][19][20][21]. The concept of cancelable biometrics was formally presented by Ratha et al [22] in 2001.…”