29 citations · 92 across the 15 of their papers we have counts for
12 papers · 1 filter
SoK: Plausibly Deniable Storage
Chen Chen, Xiao Liang, Bogdan Carbunar +1
Data privacy is critical in instilling trust and empowering the societal pacts of modern technology-driven democracies. Unfortunately, it is under continuous attack by overreaching…
RacketStore: Measurements of ASO Deception in Google Play via Mobile and App Usage
Nestor Hernandez, Ruben Recabarren, Bogdan Carbunar +1
Online app search optimization (ASO) platforms that provide bulk installs and fake reviews for paying app developers in order to fraudulently boost their search rank in app stores,…
Toward Uncensorable, Anonymous and Private Access Over Satoshi Blockchains
Ruben Recabarren, Bogdan Carbunar
Providing unrestricted access to sensitive content such as news and software is difficult in the presence of adaptive and resourceful surveillance and censoring adversaries. In thi…
Private and Atomic Exchange of Assets over Zero Knowledge Based Payment Ledger
Zhimin Gao, Lei Xu, Keshav Kasichainula +3
Bitcoin brings a new type of digital currency that does not rely on a central system to maintain transactions. By benefiting from the concept of decentralized ledger, users who do…
Tithonus: A Bitcoin Based Censorship Resilient System
Ruben Recabarren, Bogdan Carbunar
Providing reliable and surreptitious communications is difficult in the presence of adaptive and resourceful state level censors. In this paper we introduce Tithonus, a framework t…
A Secure Mobile Authentication Alternative to Biometrics
Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar
Biometrics are widely used for authentication in consumer devices and business settings as they provide sufficiently strong security, instant verification and convenience for users…
Camera Based Two Factor Authentication Through Mobile and Wearable Devices
Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar
We introduce Pixie, a novel, camera based two factor authentication solution for mobile and wearable devices. A quick and familiar user action of snapping a photo is sufficient for…
Video Liveness for Citizen Journalism: Attacks and Defenses
Mahmudur Rahman, Mozhgan Azimpourkivi, Umut Topkara +1
The impact of citizen journalism raises important video integrity and credibility issues. In this article, we introduce Vamos, the first user transparent video "liveness" verificat…
Secure Management of Low Power Fitness Trackers
Mahmudur Rahman, Bogdan Carbunar, Umut Topkara
The increasing popular interest in personal telemetry, also called the Quantified Self or "lifelogging", has induced a popularity surge for wearable personal fitness trackers. Fitn…
Hardening Stratum, the Bitcoin Pool Mining Protocol
Ruben Recabarren, Bogdan Carbunar
Stratum, the de-facto mining communication protocol used by blockchain based cryptocurrency systems, enables miners to reliably and efficiently fetch jobs from mining pool servers.…
Fit and Vulnerable: Attacks and Defenses for a Health Monitoring Device
Mahmudur Rahman, Bogdan Carbunar, Madhusudan Banik
The fusion of social networks and wearable sensors is becoming increasingly popular, with systems like Fitbit automating the process of reporting and sharing user fitness data. In…
Eat the Cake and Have It Too: Privacy Preserving Location Aggregates in Geosocial Networks
Bogdan Carbunar, Mahmudur Rahman, Jaime Ballesteros +1
Geosocial networks are online social networks centered on the locations of subscribers and businesses. Providing input to targeted advertising, profiling social network users becom…