2,714 research outputs found
State of Alaska Election Security Project Phase 2 Report
A laska’s election system is among the most secure in the country,
and it has a number of safeguards other states are now adopting. But
the technology Alaska uses to record and count votes could be improved—
and the state’s huge size, limited road system, and scattered communities
also create special challenges for insuring the integrity of the vote.
In this second phase of an ongoing study of Alaska’s election
security, we recommend ways of strengthening the system—not only the
technology but also the election procedures. The lieutenant governor
and the Division of Elections asked the University of Alaska Anchorage to
do this evaluation, which began in September 2007.Lieutenant Governor Sean Parnell.
State of Alaska Division of Elections.List of Appendices / Glossary / Study Team / Acknowledgments / Introduction / Summary of Recommendations / Part 1 Defense in Depth / Part 2 Fortification of Systems / Part 3 Confidence in Outcomes / Conclusions / Proposed Statement of Work for Phase 3: Implementation / Reference
Currency security and forensics: a survey
By its definition, the word currency refers to an agreed medium for exchange, a nation’s currency is the formal medium enforced by the elected governing entity. Throughout history, issuers have faced one common threat: counterfeiting. Despite technological advancements, overcoming counterfeit production remains a distant future. Scientific determination of authenticity requires a deep understanding of the raw materials and manufacturing processes involved. This survey serves as a synthesis of the current literature to understand the technology and the mechanics involved in currency manufacture and security, whilst identifying gaps in the current literature. Ultimately, a robust currency is desire
Attacking and Defending Printer Source Attribution Classifiers in the Physical Domain
The security of machine learning classifiers has received increasing attention in the last years. In forensic applications, guaranteeing
the security of the tools investigators rely on is crucial, since the gathered evidence may be used to decide about the innocence or the guilt
of a suspect. Several adversarial attacks were proposed to assess such
security, with a few works focusing on transferring such attacks from the
digital to the physical domain. In this work, we focus on physical domain
attacks against source attribution of printed documents. We first show
how a simple reprinting attack may be sufficient to fool a model trained
on images that were printed and scanned only once. Then, we propose
a hardened version of the classifier trained on the reprinted attacked
images. Finally, we attack the hardened classifier with several attacks,
including a new attack based on the Expectation Over Transformation
approach, which finds the adversarial perturbations by simulating the
physical transformations occurring when the image attacked in the digital domain is printed again. The results we got demonstrate a good
capability of the hardened classifier to resist attacks carried out in the
physical domai
Wine Cunterfeiting: Development of fast, non-destructive and multifactorial laser-based spectrochemical methods for authentication of bottled wine
378 p.La presente Tesis Doctoral pretende avanzar en el desarrollo de una herramienta analÃtica que permita certificar la autenticidad de un vino de forma inequÃvoca mediante técnicas analÃticas no invasivas (es decir, prácticamente inapreciable a simple vista) como son la ablación laser con plasma de acoplamiento inductivo-espectrometrÃa de masas (LA-ICPMS) y las espectroscopias Raman e Infrarroja, que permiten el análisis de una muestra sólida sin necesidad de procesarla y sin inducir degradación o alteración apreciable alguna. Mediante la metodologÃa desarrollada se pretende establecer el perfil elemental y molecular del vidrio, el papel, la tinta y la cápsula de las botellas de vino
Wine Cunterfeiting: Development of fast, non-destructive and multifactorial laser-based spectrochemical methods for authentication of bottled wine
378 p.La presente Tesis Doctoral pretende avanzar en el desarrollo de una herramienta analÃtica que permita certificar la autenticidad de un vino de forma inequÃvoca mediante técnicas analÃticas no invasivas (es decir, prácticamente inapreciable a simple vista) como son la ablación laser con plasma de acoplamiento inductivo-espectrometrÃa de masas (LA-ICPMS) y las espectroscopias Raman e Infrarroja, que permiten el análisis de una muestra sólida sin necesidad de procesarla y sin inducir degradación o alteración apreciable alguna. Mediante la metodologÃa desarrollada se pretende establecer el perfil elemental y molecular del vidrio, el papel, la tinta y la cápsula de las botellas de vino
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