329 citations · 396 across the 26 of their papers we have counts for
24 papers · 1 filter
LNMesh: Who Said You need Internet to send Bitcoin? Offline Lightning Network Payments using Community Wireless Mesh Networks
Ahmet Kurt, Abdulhadi Sahin, Ricardo Harrilal-Parchment +1
Bitcoin is undoubtedly a great alternative to today's existing digital payment systems. Even though Bitcoin's scalability has been debated for a long time, we see that it is no lon…
LNGate: Secure Bidirectional IoT Micro-payments using Bitcoin's Lightning Network and Threshold Cryptography
Ahmet Kurt, Kemal Akkaya, Sabri Yilmaz +3
Bitcoin has emerged as a revolutionary payment system with its decentralized ledger concept; however it has significant problems such as high transaction fees and low throughput. L…
D-LNBot: A Scalable, Cost-Free and Covert Hybrid Botnet on Bitcoin's Lightning Network
Ahmet Kurt, Enes Erdin, Kemal Akkaya +2
While various covert botnets were proposed in the past, they still lack complete anonymization for their servers/botmasters or suffer from slow communication between the botmaster…
3-of-3 Multisignature Approach for Enabling Lightning Network Micro-payments on IoT Devices
Ahmet Kurt, Suat Mercan, Enes Erdin +1
Bitcoin's success as a cryptocurrency enabled it to penetrate into many daily life transactions. Its problems regarding the transaction fees and long validation times are addressed…
LNGate: Powering IoT with Next Generation Lightning Micro-payments using Threshold Cryptography
Ahmet Kurt, Suat Mercan, Omer Shlomovits +2
Bitcoin has emerged as a revolutionary payment system with its decentralized ledger concept however it has significant problems such as high transaction fees and long confirmation…
Survey on Enterprise Internet-of-Things Systems (E-IoT): A Security Perspective
Luis Puche Rondon, Leonardo Babun, Ahmet Aris +2
As technology becomes more widely available, millions of users worldwide have installed some form of smart device in their homes or workplaces. These devices are often off-the-shel…
An Evaluation of Cryptocurrency Payment Channel Networks and Their Privacy Implications
Enes Erdin, Suat Mercan, Kemal Akkaya
Cryptocurrencies redefined how money can be stored and transferred among users. However, independent of the amount being sent, public blockchain-based cryptocurrencies suffer from…
Cryptocurrency Solutions to Enable Micro-payments in Consumer IoT
Suat Mercan, Ahmet Kurt, Enes Erdin +1
The successful amalgamation of cryptocurrency and consumer Internet of Things (IoT) devices can pave the way for novel applications in machine-to-machine economy. However, the lack…
Enabling Micro-payments on IoT Devices using Bitcoin Lightning Network
Ahmet Kurt, Suat Mercan, Enes Erdin +1
Lightning Network (LN) addresses the scalability problem of Bitcoin by leveraging off-chain transactions. Nevertheless, it is not possible to run LN on resource-constrained IoT dev…
PoisonIvy: (In)secure Practices of Enterprise IoT Systems in Smart Buildings
Luis Puche Rondon, Leonardo Babun, Ahmet Aris +2
The rise of IoT devices has led to the proliferation of smart buildings, offices, and homes worldwide. Although commodity IoT devices are employed by ordinary end-users, complex en…
Server-side Fingerprint-Based Indoor Localization Using Encrypted Sorting
Andrew Quijano, Kemal Akkaya
GPS signals, the main origin of navigation, are not functional in indoor environments. Therefore, Wi-Fi access points have started to be increasingly used for localization and trac…
A Cost-efficient IoT Forensics Framework with Blockchain
Suat Mercan, Mumin Cebe, Ege Tekiner +3
IoT devices have been adopted widely in the last decade which enabled collection of various data from different environments. The collected data is crucial in certain applications…
Improving Transaction Success Rate via Smart Gateway Selection in Cryptocurrency Payment Channel Networks
Suat Mercan, Enes Erdin, Kemal Akkaya
The last decade has experienced a vast interest in Blockchain-based cryptocurrencies with a specific focus on the applications of this technology. However, slow confirmation times…
Improving Sustainability of Cryptocurrency Payment Networks for IoT Applications
Suat Mercan, Enes Erdin, Kemal Akkaya
Blockchain-based cryptocurrencies received a lot of attention recently for their applications in many domains. IoT domain is one of such applications, which can utilize cryptocur-r…
Assuring the Integrity of Videos from Wireless-based IoT Devices using Blockchain
Dominik Danko, Suat Mercan, Mumin Cebe Kemal Akkaya
Blockchain technology has drawn attention fromvarious communities. The underlying consensus mechanism inBlockchain enables a myriad of applications for the integrityassurance of st…
LNBot: A Covert Hybrid Botnet on Bitcoin Lightning Network for Fun and Profit
Ahmet Kurt, Enes Erdin, Mumin Cebe +2
While various covert botnets were proposed in the past, they still lack complete anonymization for their servers/botmasters or suffer from slow communication between the botmaster…
HDMI-Walk: Attacking HDMI Distribution Networks via Consumer Electronic Control Protocol
Luis Puche Rondon, Leonardo Babun, Kemal Akkaya +1
The High Definition Multimedia Interface (HDMI) is the de-facto standard for Audio/Video interfacing between video-enabled devices. Today, almost tens of billions of HDMI devices e…
Privacy-Preserving Smart Parking System Using Blockchain and Private Information Retrieval
Wesam Al Amiri, Mohamed Baza, Karim Banawan +3
Searching for available parking spaces is a major problem for drivers especially in big crowded cities, causing traffic congestion and air pollution, and wasting drivers' time. Sma…
Communication-efficient Certificate Revocation Management for Advanced Metering Infrastructure and IoT
Mumin Cebe, Kemal Akkaya
Advanced Metering Infrastructure forms a communication network for the collection of power data from smart meters in Smart Grid. As the communication between smart meters could be…
U-PoT: A Honeypot Framework for UPnP-Based IoT Devices
Muhammad A. Hakim, Hidayet Aksu, A. Selcuk Uluagac +1
The ubiquitous nature of the IoT devices has brought serious security implications to its users. A lot of consumer IoT devices have little to no security implementation at all, thu…
Digital Forensics for IoT and WSNs
Umit Karabiyik, Kemal Akkaya
In the last decade, wireless sensor networks (WSNs) and Internet-of-Things (IoT) devices are proliferated in many domains including critical infrastructures such as energy, transpo…
EPIC: Efficient Privacy-Preserving Scheme with E2E Data Integrity and Authenticity for AMI Networks
Ahmad Alsharif, Mahmoud Nabil, Samet Tonyali +3
In Advanced Metering Infrastructure (AMI) networks, smart meters should send fine-grained power consumption readings to electric utilities to perform real-time monitoring and energ…
WACA: Wearable-Assisted Continuous Authentication
Abbas Acar, Hidayet Aksu, A. Selcuk Uluagac +1
One-time login process in conventional authentication systems does not guarantee that the identified user is the actual user throughout the session. However, it is necessary to re-…
Block4Forensic: An Integrated Lightweight Blockchain Framework for Forensics Applications of Connected Vehicles
Mumin Cebe, Enes Erdin, Kemal Akkaya +2
Today's vehicles are becoming cyber-physical systems that do not only communicate with other vehicles but also gather various information from hundreds of sensors within them. Thes…