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Although blockchains aim for immutability as their core feature, several instances have exposed the harms with perfect immutability. The permanence of illicit content inserted in Bitcoin poses a challenge to law enforcement agencies like…

Cryptography and Security · Computer Science 2021-03-12 Sri Aravinda Krishnan Thyagarajan , Adithya Bhat , Bernardo Magri , Daniel Tschudi , Aniket Kate

Context: Smart contracts are computer programs that are automatically executed on the blockchain. Vulnerabilities in their implementation have led to severe loss of cryptocurrency. Smart contracts become immutable when deployed to the…

Cryptography and Security · Computer Science 2022-03-29 Majd Soud , Grischa Liebel , Mohammad Hamdaqa

The rapid advancement of artificial intelligence has made the generation of synthetic images widely accessible, increasing concerns related to misinformation, digital forgery, and content authenticity on large-scale online platforms. This…

Cryptography and Security · Computer Science 2026-02-03 Apoorv Mohit , Bhavya Aggarwal , Chinmay Gondhalekar

With the development of blockchain technology, more and more attention has been paid to the intersection of blockchain and education, and various educational evaluation systems and E-learning systems are developed based on blockchain…

Cryptography and Security · Computer Science 2023-03-09 Zhifeng Wang , Wanxuan Wu , Chunyan Zeng , Jialong Yao , Yang Yang , Hongmin Xu

Recent years have witnessed explosive growth in blockchain smart contract applications. As smart contracts become increasingly popular and carry trillion dollars worth of digital assets, they become more of an appealing target for…

Software Engineering · Computer Science 2023-04-26 Peng Qian , Jianting He , Lingling Lu , Siwei Wu , Zhipeng Lu , Lei Wu , Yajin Zhou , Qinming He

Smart contracts on public blockchains now manage large amounts of value, and vulnerabilities in these systems can lead to substantial losses. As AI agents become more capable at reading, writing, and running code, it is natural to ask how…

Smart contract, one of the most successful applications of blockchain, is taking the world by storm, playing an essential role in the blockchain ecosystem. However, frequent smart contract security incidents not only result in tremendous…

Cryptography and Security · Computer Science 2022-09-14 Peng Qian , Zhenguang Liu , Qinming He , Butian Huang , Duanzheng Tian , Xun Wang

The proliferation of AI-generated synthetic media poses a critical threat to the integrity of digital evidence in legal and forensic contexts. Existing deepfake detection systems typically address a single modality and provide no mechanism…

Cryptography and Security · Computer Science 2026-05-29 Naisha Minnah

Private blockchain networks are used by enterprises to manage decentralized processes without trusted mediators and without exposing their assets publicly on an open network like Ethereum. Yet external parties that cannot join such networks…

Cryptography and Security · Computer Science 2021-01-26 Dushyant Behl , Palanivel Kodeswaran , Venkatraman Ramakrishna , Sayandeep Sen , Dhinakaran Vinayagamurthy

Unstructured text from legal, medical, and administrative sources offers a rich but underutilized resource for research in public health and the social sciences. However, large-scale analysis is hampered by two key challenges: the presence…

Computation and Language · Computer Science 2025-07-16 Anders Ledberg , Anna Thalén

Blockchain has become particularly popular due to its promise to support business-critical services in very different domains (e.g., retail, supply chains, healthcare). Blockchain systems rely on complex middleware, like Ethereum or…

Software Engineering · Computer Science 2020-10-23 Ákos Hajdu , Naghmeh Ivaki , Imre Kocsis , Attila Klenik , László Gönczy , Nuno Laranjeiro , Henrique Madeira , András Pataricza

Fake products are items that are marketed and sold as genuine, high-quality products but are counterfeit or low-quality knockoffs. These products are often designed to closely mimic the appearance and branding of the genuine product to…

Cryptography and Security · Computer Science 2023-08-09 Shashank Gupta

In shaping the Internet of Money, the application of blockchain and distributed ledger technologies (DLTs) to the financial sector triggered regulatory concerns. Notably, while the user anonymity enabled in this field may safeguard privacy…

Cryptography and Security · Computer Science 2023-03-21 Nadia Pocher , Mirko Zichichi , Fabio Merizzi , Muhammad Zohaib Shafiq , Stefano Ferretti

Poorly designed smart contracts are particularly vulnerable, as they may allow attackers to exploit weaknesses and steal the virtual currency they manage. In this study, we train a model using unsupervised learning to identify…

Cryptography and Security · Computer Science 2025-04-15 Hong-Sheng Huang , Jen-Yi Ho , Hao-Wen Chen , Hung-Min Sun

Ethereum Smart Contracts based on Blockchain Technology (BT)enables monetary transactions among peers on a blockchain network independent of a central authorizing agency. Ethereum smart contracts are programs that are deployed as…

Cryptography and Security · Computer Science 2021-05-17 Noama Fatima Samreen , Manar H. Alalfi

With proliferation of user generated contents in social media platforms, establishing mechanisms to automatically identify toxic and abusive content becomes a prime concern for regulators, researchers, and society. Keeping the balance…

Computation and Language · Computer Science 2021-06-10 Djamila Romaissa Beddiar , Md Saroar Jahan , Mourad Oussalah

Data tampering is often considered a severe problem in industrial applications as it can lead to inaccurate financial reports or even a corporate security crisis. A correct representation of data is essential for companies' core business…

Cryptography and Security · Computer Science 2022-07-04 Zeshun Shi , Jeroen Bergers , Ken Korsmit , Zhiming Zhao

Social media is filled with toxic content. The aim of this paper is to build a model that can detect insincere questions. We use the 'Quora Insincere Questions Classification' dataset for our analysis. The dataset is composed of sincere and…

Computation and Language · Computer Science 2019-11-05 Deepshi Mediratta , Nikhil Oswal

Online hate speech is a recent problem in our society that is rising at a steady pace by leveraging the vulnerabilities of the corresponding regimes that characterise most social media platforms. This phenomenon is primarily fostered by…

Computation and Language · Computer Science 2022-01-05 Ioannis Mollas , Zoe Chrysopoulou , Stamatis Karlos , Grigorios Tsoumakas

The evaluation of smart contract reputability is essential to foster trust in decentralized ecosystems. However, existing methods that rely solely on code analysis or transactional data, offer limited insight into evolving trustworthiness.…

Machine Learning · Computer Science 2025-04-01 Cyrus Malik , Josef Bajada , Joshua Ellul