Daminha Blog

This blog provides a comprehensive overview of zk-Rollups and zkEVMs, highlighting their advantages in scalability, data compression, and enhanced privacy. Despite their potential, challenges such as developer unfriendliness and lack of composability hinder widespread adoption. By examining two primary approaches for building decentralized applications (DApps) on zk-Rollups—application-specific circuits and universal EVM circuits—we shed light on the ongoing evolution of Ethereum technology. Ultimately, the zkEVM represents a significant leap forward, merging familiar smart contract execution with the groundbreaking capabilities of zero-knowledge proofs. [Read More]

This blog delves into the vulnerabilities associated with the MicroLogix 1400 PLC, particularly focusing on CVE-2021-22659. Through a detailed analysis, I outline the phases of potential attacks, the underlying Modbus protocol, and the steps necessary for effective remediation. By understanding the intricacies of this vulnerability and employing robust security measures, organizations can better protect their operational technology environments. With the insights gained from the OPSWAT Fellowship Program, this work serves as a crucial resource for enhancing cybersecurity in industrial settings. [Read More]

Dive into the fascinating world of blockchain technology with this engaging exploration of its foundational elements! From understanding the robust structure of Merkle trees that underpins data verification to unraveling the complexities of the Ethereum Virtual Machine (EVM), this blog offers a thorough overview of how decentralized applications and smart contracts operate. Discover how Ethereum revolutionizes trust and security through its unique consensus mechanisms and the role of Ether as its lifeblood. As you embark on this journey, you’ll gain insights that not only enhance your understanding of Ethereum but also prepare you for the cutting-edge innovations of zkEVM. Join me as we unlock the potential of blockchain and envision the future of decentralized technologies! [Read More]

In this detailed blog post, we explore the insidious world of phishing attacks carried out via Zalo chat. Through a step-by-step demonstration, we reveal how attackers craft convincing disguised files, use social engineering to lure victims, and employ Canarytokens to track unauthorized access and gather critical data like public IP addresses. Discover the techniques behind this sophisticated form of cyber deception and learn how to protect yourself from falling victim to such attacks. [Read More]

In this blog, we unravel the complex process of verifying circuit constraints within SNARKs, a cornerstone of modern cryptographic protocols. You’ll learn how correctness is ensured across inputs, gate computations, and wiring within a circuit, all without compromising the secrecy of the information involved. By understanding these mechanisms, you gain insights into the robust security that underpins technologies like blockchain. Whether you’re a cryptography enthusiast or a professional in the field, this blog offers a deep dive into the mathematical and logical foundations that make zero-knowledge proofs so powerful. [Read More]

This blog delves into the critical role of arithmetic circuits in zero-knowledge proofs, using the game of Sudoku as an analogy to explain complex concepts. From understanding how Sudoku verification relates to the famous P vs NP problem, to exploring the broader implications of arithmetic circuits in cryptographic protocols, the blog offers a clear and engaging overview. Perfect for readers interested in the intersection of computer science, mathematics, and privacy. [Read More]

This blog explores the foundational concepts in cryptography, focusing on the roles of polynomials, pairings, and commitment schemes. It explains how polynomials contribute to data integrity through erasure coding and interpolation, introduces the concept of pairings with their critical properties of bilinearity and non-degeneracy, and guides readers through the setup and importance of polynomial commitment schemes. Building on previous discussions of Zero-Knowledge Proofs, this blog provides an accessible yet comprehensive guide to these essential cryptographic tools. [Read More]

This blog explores the fundamentals of Zero-Knowledge Proofs (ZKPs), an essential concept for understanding security and privacy in ZK-EVM (Zero-Knowledge Ethereum Virtual Machine). [Read More]

In this blog post, I explore how cybercriminals exploit chat applications like Zalo and Telegram to extract users’ IP addresses through methods like URL spoofing and phishing. By creating and distributing spoofed URLs, attackers can deceive users into revealing sensitive information. I also highlight a specific vulnerability in Telegram that exposes user IP addresses during calls. Learn the mechanics of these attacks, see a detailed proof of concept, and discover essential tips to protect your privacy online. [Read More]

Welcome to my blog! I am Dang Duong Minh Nhat, a passionate mathematics student with a strong interest in cybersecurity. [Read More]