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Article
Publication date: 13 July 2012

Weiguo Sheng, Gareth Howells, Michael Fairhurst, Farzin Deravi and Shengyong Chen

Biometric authentication, which requires storage of biometric templates and/or encryption keys, raises a matter of serious concern, since the compromise of templates or…

Abstract

Purpose

Biometric authentication, which requires storage of biometric templates and/or encryption keys, raises a matter of serious concern, since the compromise of templates or keys necessarily compromises the information secured by those keys. To address such concerns, efforts based on dynamic key generation directly from the biometrics have recently emerged. However, previous methods often have quite unacceptable authentication performance and/or small key spaces and therefore are not viable in practice. The purpose of this paper is to propose a novel method which can reliably generate long keys while requires storage of neither biometric templates nor encryption keys.

Design/methodology/approach

This proposition is achieved by devising the use of fingerprint orientation fields for key generation. Additionally, the keys produced are not permanently linked to the orientation fields, hence, allowing them to be replaced in the event of key compromise.

Findings

The evaluation demonstrates that the proposed method for dynamic key generation can offer both good reliability and security in practice, and outperforms other related methods.

Originality/value

In this paper, the authors propose a novel method which can reliably generate long keys while requires storage of neither biometric templates nor encryption keys. This is achieved by devising the use of fingerprint orientation fields for key generation. Additionally, the keys produced are not permanently linked to the orientation fields, hence, allowing them to be replaced in the event of key compromise.

Details

Information Management & Computer Security, vol. 20 no. 3
Type: Research Article
ISSN: 0968-5227

Keywords

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Article
Publication date: 30 June 2020

Lucy Sojung Lee and Weiguo Zhong

This paper aims to investigate the importance and prevalence of Guanxi in business interactions in network-based societies such as China, few studies have the phenomenon…

Abstract

Purpose

This paper aims to investigate the importance and prevalence of Guanxi in business interactions in network-based societies such as China, few studies have the phenomenon from a dyadic view. In a business dyad, one partner may not value Guanxi and take it as a template for actions as the other does.

Design/methodology/approach

The authors propose that such collective and asymmetric Guanxi orientation influence both the creation and distribution of relational rent in a Guanxi dyad. Furthermore, relationship-specific investments (RSIs) moderate the relationship between dyadic Guanxi orientation and relational rent creation and distribution.

Findings

Based on a matched sample of supplier-buyer dyads in China, the authors find that joint Guanxi orientation is positively related to joint pie creation, whereas Guanxi orientation imbalance has a positive effect on the pie distribution imbalance.

Originality/value

These results contribute to the literature by revealing how dyadic Guanxi dynamics and practices affect dyadic performance and providing managers with meaningful implications for dyadic Guanxi management.

Details

Chinese Management Studies, vol. 15 no. 1
Type: Research Article
ISSN: 1750-614X

Keywords

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