80 citations · 123 across the 17 of their papers we have counts for
17 papers
Quality over Quantity: Semi-Supervised Detection of Illicit Bitcoin Flows via Feature Engineering
Yekaterina Smolenkova, Nickolay Larionov, Nikolay Ivanov +1
Detecting illicit cryptocurrency transactions is hampered by extreme class imbalance, adversarial obfuscation, and a scarcity of reliable labels. While semi-supervised learning (SS…
SoK: Evolution, Security, and Fundamental Properties of Transactional Systems
Sky Pelletier Waterpeace, Nikolay Ivanov
Transaction processing systems underpin modern commerce, finance, and critical infrastructure, yet their security has never been studied across the full evolutionary arc of these s…
SoK: Self-Sovereign Digital Identities
Sushanth Ambati, Kainat Adeel, Jack Myers +1
Self-Sovereign Digital Identity (SSDI) enables individuals to control their own identity assertions and data, rather than relying on centralized or federated systems prone to large…
A Practical Survey on Emerging Threats from AI-driven Voice Attacks: How Vulnerable are Commercial Voice Control Systems?
Yuanda Wang, Qiben Yan, Nikolay Ivanov +1
The emergence of Artificial Intelligence (AI)-driven audio attacks has revealed new security vulnerabilities in voice control systems. While researchers have introduced a multitude…
DynamicFL: Balancing Communication Dynamics and Client Manipulation for Federated Learning
Bocheng Chen, Nikolay Ivanov, Guangjing Wang +1
Federated Learning (FL) is a distributed machine learning (ML) paradigm, aiming to train a global model by exploiting the decentralized data across millions of edge devices. Compar…
Security Defense For Smart Contracts: A Comprehensive Survey
Nikolay Ivanov, Chenning Li, Qiben Yan +3
The blockchain technology has been used for recording state transitions of smart contracts - decentralized applications that can be invoked through external transactions. Smart con…
TxT: Real-time Transaction Encapsulation for Ethereum Smart Contracts
Nikolay Ivanov, Qiben Yan, Anurag Kompalli
Ethereum is a permissionless blockchain ecosystem that supports execution of smart contracts, the key enablers of decentralized finance (DeFi) and non-fungible tokens (NFT). Howeve…
Is Rust C++-fast? Benchmarking System Languages on Everyday Routines
Nikolay Ivanov
Rust is a relatively new system programming language that has been experiencing a rapid adoption in the past 10 years. Rust incorporates a memory ownership model enforced at a comp…
Decentralization Paradox: A Study of Hegemonic and Risky ERC-20 Tokens
Nikolay Ivanov, Qiben Yan
In this work, we explore the class of Ethereum smart contracts called the administrated ERC20 tokens. We demonstrate that these contracts are more owner-controlled and less safe th…
Et tu, Blockchain? Outsmarting Smart Contracts via Social Engineering
Nikolay Ivanov, Qiben Yan
We reveal six zero-day social engineering attacks in Ethereum, and subdivide them into two classes: Address Manipulation and Homograph. We demonstrate the attacks by embedding them…
SuperVoice: Text-Independent Speaker Verification Using Ultrasound Energy in Human Speech
Hanqing Guo, Qiben Yan, Nikolay Ivanov +3
Voice-activated systems are integrated into a variety of desktop, mobile, and Internet-of-Things (IoT) devices. However, voice spoofing attacks, such as impersonation and replay at…
EthClipper: A Clipboard Meddling Attack on Hardware Wallets with Address Verification Evasion
Nikolay Ivanov, Qiben Yan
Hardware wallets are designed to withstand malware attacks by isolating their private keys from the cyberspace, but they are vulnerable to the attacks that fake an address stored i…
System-Wide Security for Offline Payment Terminals
Nikolay Ivanov, Qiben Yan
Most self-service payment terminals require network connectivity for processing electronic payments. The necessity to maintain network connectivity increases costs, introduces cybe…
Rectifying Administrated ERC20 Tokens
Nikolay Ivanov, Hanqing Guo, Qiben Yan
The developers of Ethereum smart contracts often implement administrating patterns, such as censoring certain users, creating or destroying balances on demand, destroying smart con…
Blockumulus: A Scalable Framework for Smart Contracts on the Cloud
Nikolay Ivanov, Qiben Yan, Qingyang Wang
Public blockchains have spurred the growing popularity of decentralized transactions and smart contracts, but they exhibit limitations on the transaction throughput, storage, and c…
Targeting the Weakest Link: Social Engineering Attacks in Ethereum Smart Contracts
Nikolay Ivanov, Jianzhi Lou, Ting Chen +2
Ethereum holds multiple billions of U.S. dollars in the form of Ether cryptocurrency and ERC-20 tokens, with millions of deployed smart contracts algorithmically operating these fu…
Constraint-Based Inference of Heuristics for Foreign Exchange Trade Model Optimization
Nikolay Ivanov, Qiben Yan
The Foreign Exchange (Forex) is a large decentralized market, on which trading analysis and algorithmic trading are popular. Research efforts have been focusing on proof of efficie…