Secure Blockchain Transaction: A Literature Survey | IJCT Volume 12 – Issue 6 | IJCT-V12I6P1

In today’s era of digital transformation, online transactions have become vital to financial systems, e-commerce, and decentralized applications. However, increasing dependence on digital payment infrastructures has also raised major security concerns such as hacking, identity theft, and unauthorized access. To address these challenges, the proposed project “Blockchain Secure Transaction” presents a decentralized framework that ensures transparency, integrity, and confidentiality in digital transactions. The system uses blockchain technology to record and validate each transaction in a distributed ledger, eliminating centralized control and making data immutable and tamper-proof. The workflow begins with user registration, where users provide details and set a picture password for secure recognition. During login, the system verifies credentials and performs biometric authentication to confirm user identity. Unregistered users are redirected to the registration page, maintaining process integrity. Once authenticated, users access the dashboard to initiate secure transactions. To preserve privacy, Zero-Knowledge Proof (ZKP) is used, allowing users to prove transaction authenticity without revealing sensitive information. Transactions then pass through smart contract verification, which ensures compliance with predefined conditions. Successful verifications result in completed transactions, while suspicious or invalid ones are blocked or frozen automatically. All user data and transaction logs are securely stored in Firebase, with backend processing handled in Java and the frontend designed using React (app.jsx). By combining blockchain’s immutability, smart contract automation, ZKP privacy proofs, and biometric authentication, the Blockchain Secure Transaction System offers a multi-layered, tamper-resistant, and transparent solution for secure online payments — enhancing trust and reliability in the digital economy.

The proposed project, Blockchain Secure Transaction, presents a secure and decentralized framework that ensures privacy, integrity, and transparency in digital transactions. By integrating Zero-Knowledge Proofs (ZKP), biometric verification, and picture password authentication, the system provides multi-layered protection against unauthorized access and data breaches. The use of smart contracts automates transaction verification, while Firebase integration ensures reliable data storage and retrieval. Unlike traditional centralized systems, this approach eliminates single points of failure and enhances trust among users. Overall, the project demonstrates a practical and scalable solution for secure, tamper-proof, and user-friendly blockchain-based transactions, paving the way for future advancements in decentralized financial systems.

Zhang, B., Pan, H., & Li, K. (2024). A Blockchain and Zero-Knowledge Proof Based Data Security Transaction Method in Distributed Computing. MDPI – Electronics. Katari, P., Alluri, V. R., & Bojja, S. G. R. (2024). Balancing Openness and Secrecy: ZKP Implementation in Blockchain Transactions. IJISAE Journal. Guo, H., Du, X., & Zhang, Y. (2024). Research on Blockchain Smart Contract Application and Security Issues. Journal of Computer Applications & Security. Bamashmos, S., Chilamkurti, N., & Shahraki, A. S. (2024). Two-Layered Multi-Factor Authentication Using Decentralized Blockchain in an IoT Environment. MDPI – Sensors. Liao, Z., Hao, S., Nan, Y., & Zheng, Z. (2024). SmartState: Detecting State-Reverting Vulnerabilities in Smart Contracts. arXiv / ACM. Li, Q., & Zhang, W. (2025). Enhanced Blockchain Collaborative Intrusion Detection System. SpringerLink. Wang, Y., & Liu, J. (2024). Decentralized Identity Verification Using Blockchain. ScienceDirect. Kumar, R. (2025). Firebase-Integrated Blockchain Transaction Management System. IEEE Xplore. Zhou, M., et al. (2024). Leveraging Zero-Knowledge Proofs for Blockchain-Based Identity. ScienceDirect. USENIX (2025). Understanding zk-SNARKs: The Gap Between Research and Practice. USENIX Conference Proceedings.

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