Leakage Resilient Password Systems

Author/creator Li, Yingjiu Author
Other author Yan, Qiang Author
Other author Deng, Robert H. Author
Format Electronic
Publication InfoNew York : Springer
Descriptionx, 64 p. ill 23.500 x 015.500 cm.
Supplemental ContentFull text available from eBooks on EBSCOhost
Supplemental ContentFull text available from Springer Nature - Springer Computer Science eBooks 2015 English International
Supplemental ContentFull text available from Springer Books

SeriesSpringerBriefs in Computer Science Ser.
Summary Annotation 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.
Access restrictionAvailable only to authorized users.
Technical detailsMode of access: World Wide Web
Genre/formElectronic books.
ISBN9783319175027
ISBN3319175025 (Trade Paper) Active Record
Standard identifier# 9783319175027
Stock number10.1007/978-3-319-17503-4 00024965