1.

Record Nr.

UNINA9910707240403321

Autore

Guerreiro Nelson M.

Titolo

Parametric analysis of surveillance quality and level and quality of intent information and their impact on conflict detection performance / / Nelson M. Guerreiro [and four others]

Pubbl/distr/stampa

Hampton, Virginia : , : National Aeronautics and Space Administration, Langley Research Center, , March 2016

Descrizione fisica

1 online resource (vi, 67 pages) : color illustrations

Collana

NASA/TM ; ; 2016-219177

Soggetti

Air traffic control

Aircraft approach spacing

Aircraft safety

Collision avoidance

Tracking (position)

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from title screen (viewed June 21, 2016).

"March 2016."

"Performing organization: NASA Langley Research Center, Hampton, VA"--Report documentation page.

Nota di bibliografia

Includes bibliographical references (pages 63-64).



2.

Record Nr.

UNINA9910299249203321

Autore

Li Yingjiu

Titolo

Leakage Resilient Password Systems / / by Yingjiu Li, Qiang Yan, Robert H. Deng

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2015

ISBN

3-319-17503-3

Edizione

[1st ed. 2015.]

Descrizione fisica

1 online resource (74 p.)

Collana

SpringerBriefs in Computer Science, , 2191-5768

Disciplina

004

005.7

005.8

005.82

621.382

Soggetti

Computer security

Computers

Electrical engineering

Data encryption (Computer science)

Systems and Data Security

Information Systems and Communication Service

Communications Engineering, Networks

Cryptology

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

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.

Sommario/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.