Leakage Resilient Password Systems - Brossura

Li, Yingjiu

Brossura

ISBN 10: 3319175025 ISBN 13: 9783319175027

Casa editrice: Springer, 2015

Riassunto

This book investigates tradeoff between security and usability in designing leakage resilient password systems (LRP) and introduces two practical LRP systems named Cover Pad and ShadowKey. It demonstrates that existing LRP systems are subject to both brute force attacks and statistical attacks and that these attacks cannot be effectively mitigated without sacrificing the usability of LRP systems. Quantitative analysis proves that a secure LRP system in practical settings imposes a considerable amount of cognitive workload unless certain secure channels are involved. The book introduces a secure and practical LRP system, named Cover Pad, for password entry on touch-screen mobile devices. Cover Pad leverages a temporary secure channel between a user and a touch screen which can be easily realized by placing a hand shielding gesture on the touch screen. The temporary secure channel is used to deliver a hidden message to the user for transforming each password symbol before entering it on the touch screen. A user study shows the impact of these testing conditions on the users' performance in practice. Finally, this book introduces a new LRP system named ShadowKey. Shadow Key is designed to achieve better usability for leakage resilient password entry. It leverages either a permanent secure channel, which naturally exists between a user and the display unit of certain mobile devices, or a temporary secure channel, which can be easily realized between a user and a touch screen with a hand-shielding gesture. The secure channel protects the mappings between original password symbols and associated random symbols. Unlike previous LRP system users, Shadow Key users do not need to remember anything except their passwords. Leakage Resilient Password Systems is designed for professionals working in the security industry. Advanced-level students studying computer science and electrical engineering will find this brief full of useful material.

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Contenuti

Leakage Resilient Password Systems: Attacks, Principles and Usability.- Cover Pad: A Leakage Resilient Password System on Touch-Screen Mobile Devices.- Shadow Key: A Practical Leakage Resilient Password System.

Dettagli dell?edizione

• Editore: Springer
• Data di pubblicazione: 2015
• ISBN 10: 3319175025
• ISBN 13: 9783319175027
• Rilegatura: Copertina flessibile
• Lingua: Inglese
• Numero di pagine: 76
• Contatto del produttore: non disponibile