Physical Sciences and Mathematics Commons^™

Secure Server-Aided Top-K Monitoring, Yujue Wang, Hwee Hwa Pang, Yanjiang Yang, Xuhua Ding

Research Collection School Of Computing and Information Systems

In a data streaming model, a data owner releases records or documents to a set of users with matching interests, in such a way that the match in interest can be calculated from the correlation between each pair of document and user query. For scalability and availability reasons, this calculation is delegated to third-party servers, which gives rise to the need to protect the integrity and privacy of the documents and user queries. In this paper, we propose a server-aided data stream monitoring scheme (DSM) to address the aforementioned integrity and privacy challenges, so that the users are able to …

Spice: Secure Proximity-Based Infrastructure For Close Encounters, Aarathi Prasad, Xiaohui Liang, David Kotz

Dartmouth Scholarship

We present a crowdsourcing system that extends the capabilities of location-based applications and allows users to connect and exchange information with users in spatial and temporal proximity. We define this incident of spatio-temporal proximity as a \em close encounter. Typically, location-based application users store their information on a server, and trust the server to provide access only to authorized users, not misuse the data or disclose their location history. Our system, called SPICE, addresses these privacy issues by leveraging Wi-Fi access points to connect users and encrypt their information before it is exchanged, so only users in close encounters have …

Breaking Into The Vault: Privacy, Security And Forensic Analysis Of Android Vault Applications, Xiaolu Zhang, Ibrahim Baggili, Frank Breitinger

Electrical & Computer Engineering and Computer Science Faculty Publications

In this work we share the first account for the forensic analysis, security and privacy of Android vault applications. Vaults are designed to be privacy enhancing as they allow users to hide personal data but may also be misused to hide incriminating files. Our work has already helped law enforcement in the state of Connecticut to reconstruct 66 incriminating images and 18 videos in a single criminal case. We present case studies and results from analyzing 18 Android vault applications (accounting for nearly 220 million downloads from the Google Play store) by reverse engineering them and examining the forensic artifacts …

Os2: Oblivious Similarity Based Searching For Encrypted Data Outsourced To An Untrusted Domain, Zeeshan Pervez, Mahmood Ahmad, Asad Masood Khattak, Naeem Ramzan, Wajahat Ali Khan

All Works

© 2017 Pervez et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Public cloud storage services are becoming prevalent and myriad data sharing, archiving and collaborative services have emerged which harness the pay-as-you-go business model of public cloud. To ensure privacy and confidentiality often encrypted data is outsourced to such services, which further complicates the process of accessing relevant data by using search queries. Search over encrypted data schemes solve this problem by …

A Privacy Preserving Framework For Rfid Based Healthcare Systems, Farzana Rahman, Anwarul A. Bhuiyan, Sheikh Iqbal Ahamed

Mathematics, Statistics and Computer Science Faculty Research and Publications

RFID (Radio Frequency IDentification) is anticipated to be a core technology that will be used in many practical applications of our life in near future. It has received considerable attention within the healthcare for almost a decade now. The technology’s promise to efficiently track hospital supplies, medical equipment, medications and patients is an attractive proposition to the healthcare industry. However, the prospect of wide spread use of RFID tags in the healthcare area has also triggered discussions regarding privacy, particularly because RFID data in transit may easily be intercepted and can be send to track its user (owner). In a …

Bystanders' Privacy, Alfredo J. Perez, Sherali Zeadally, Scott Griffith

Computer Science Faculty Publications

The growing adoption of Internet-connected devices has given rise to significant privacy issues not only for users but also for bystanders. The authors explore privacy concerns related to bystanders' privacy and present a taxonomy of the solutions found in the literature to handle this issue. They also explore open issues that must be addressed in the future.

Ispy: Threats To Individual And Institutional Privacy In The Digital World, Lori Andrews

All Faculty Scholarship

What type of information is collected, who is viewing it, and what law librarians can do to protect their patrons and institutions.

Lighttouch: Securely Connecting Wearables To Ambient Displays With User Intent, Xiaohui Liang, Tianlong Yun, Ronald Peterson, David Kotz

Dartmouth Scholarship

Wearables are small and have limited user interfaces, so they often wirelessly interface with a personal smartphone/computer to relay information from the wearable for display or other interactions. In this paper, we envision a new method, LightTouch, by which a wearable can establish a secure connection to an ambient display, such as a television or a computer monitor, while ensuring the user's intention to connect to the display. LightTouch uses standard RF methods (like Bluetooth) for communicating the data to display, securely bootstrapped via the visible-light communication (the brightness channel) from the display to the low-cost, low-power, ambient light sensor …

Lightweight Three-Factor Authentication And Key Agreement Protocol For Internet-Integrated Wireless Sensor Networks, Qi Jiang, Sherali Zeadally, Jianfeng Ma, Debiao He

Information Science Faculty Publications

Wireless sensor networks (WSNs) will be integrated into the future Internet as one of the components of the Internet of Things, and will become globally addressable by any entity connected to the Internet. Despite the great potential of this integration, it also brings new threats, such as the exposure of sensor nodes to attacks originating from the Internet. In this context, lightweight authentication and key agreement protocols must be in place to enable end-to-end secure communication. Recently, Amin et al. proposed a three-factor mutual authentication protocol for WSNs. However, we identified several flaws in their protocol. We found that their …

Are The Trade-Offs For Reducing Cross-Border Cybercrime Manageable?, Steven Mark Miller, Qiu-Hong Wang, Robert John Kauffman

Research Collection School Of Computing and Information Systems

Without increased government intervention andgovernment-industry collaboration, the advantages inherent in the next wave ofInternet-enabled digital transformation will increasingly tilt towardcyber criminals, and their influence will disproportionately increase. The dilemma that immediately presents itself in such ascenario, however, is that an increased level of government involvement canalso lead to undesirable consequences. Increasing security always comes withtrade-offs that must be managed. The obvious concerns relate to the erosion ofprivacy, illegal or extralegal persecution, the abuse of Internet censorshipand the impediment to or stifling of innovation.

Anonpri: A Secure Anonymous Private Authentication Protocol For Rfid Systems, Farzana Rahman, Md. Endadul Hoque, Sheikh Iqbal Ahamed

Mathematics, Statistics and Computer Science Faculty Research and Publications

Privacy preservation in RFID systems is a very important issue in modern day world. Privacy activists have been worried about the invasion of user privacy while using various RFID systems and services. Hence, significant efforts have been made to design RFID systems that preserve users' privacy. Majority of the privacy preserving protocols for RFID systems require the reader to search all tags in the system in order to identify a single RFID tag which not efficient for large scale systems. In order to achieve high-speed authentication in large-scale RFID systems, researchers propose tree-based approaches, in which any pair of tags …

Assessment Of Security Vulnerabilities In Wearable Devices, Brian Cusack, Bryce Antony, Gerard Ward, Shaunak Mody

Australian Information Security Management Conference

Wearable devices have proliferated in usage and human experience, and they provide convenience for personal information requirements. These devices are both sensory and immersive for the diverse global network that is generally termed the Internet of things (IoT). The immediacy of the two-way communication created in the IoT has made vulnerable human behaviour and raised debate around information ownership and privacy expectations. The legitimacy of ownership of information and its reuse are prevalent problems. In this research, we tested four wearable devices that share 44% of the current market, for security vulnerabilities. We found serious weaknesses that could result in …

Cybersecurity Stovepiping, David Thaw

Articles

Most readers of this Article probably have encountered – and been frustrated by – password complexity requirements. Such requirements have become a mainstream part of contemporary culture: "the more complex your password is, the more secure you are, right?" So the cybersecurity experts tell us… and policymakers have accepted this "expertise" and even adopted such requirements into law and regulation.

This Article asks two questions. First, do complex passwords actually achieve the goals many experts claim? Does using the password "Tr0ub4dor&3" or the passphrase "correcthorsebatterystaple" actually protect your account? Second, if not, then why did such requirements become so widespread? …

Ancient Worries And Modern Fears: Different Roots And Common Effects Of U.S. And Eu Privacy Regulation, David Thaw, Pierluigi Perri

Articles

Much legal and technical scholarship discusses the differing views of the United States and European Union toward privacy concepts and regulation. A substantial amount of effort in recent years, in both research and policy, focuses on attempting to reconcile these viewpoints searching for a common framework with a common level of protection for citizens from both sides of Atlantic. Reconciliation, we argue, misunderstands the nature of the challenge facing effective cross-border data flows. No such reconciliation can occur without abdication of some sovereign authority of nations, that would require the adoption of an international agreement with typical tools of international …

Multiparty Computations In Varying Contexts, Paul Laird, Sarah Jane Delany, Pierpaolo Dondio

Conference papers

Recent developments in the automatic transformation of protocols into Secure Multiparty Computation (SMC) interactions, and the selection of appropriate schemes for their implementation have improved usabililty of SMC. Poor performance along with data leakage or errors caused by coding mistakes and complexity had hindered SMC usability. Previous practice involved integrating the SMC code into the application being designed, and this tight integration meant the code was not reusable without modification. The progress that has been made to date towards the selection of different schemes focuses solely on the two-party paradigm in a static set-up, and does not consider changing contexts. …

The Gdpr As A Chance To Break Down Borders, Fred H. Cate, Christopher Kuner, Dan Jerker B. Svantesson, Orla Lynskey, Nora Ni Loideain

Articles by Maurer Faculty

No abstract provided.