International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 04 | Apr 2025
p-ISSN: 2395-0072
www.irjet.net
Enhanced Blockchain Secure Messaging using XMTP Syed Saud UR Rahman1, Tejas M2, V H Vishruth Kumar3, Veeramreddy Surya Prakash Reddy4, Priyanka M5 1CMR University, Bengaluru, India
2 CMR University, Bengaluru, India 3 CMR University, Bengaluru, India 4 CMR University, Bengaluru, India 5Assistant Professor, Dept. of CSE, CMR University, Bengaluru, India
---------------------------------------------------------------------***--------------------------------------------------------------------supply is interrupted, there will be no disruption of Abstract - Blockchain secure messaging is essential for communications between users. The index table is updated regularly across all clients or peers.
ensuring data integrity, confidentiality, and privacy. XMTP (Extensible Message Transport Protocol) uses advanced cryptographic techniques to facilitate fully decentralized and end-to-end encrypted messaging between users. Here we propose a secure & efficient version of the XMTP-based protocol that solves the security vulnerabilities, data authenticity, and scalability issues. To solve these points, it uses asymmetric encryption along with zero-knowledge proofs to improve privacy while reducing centralization.
[1] Decentralized Operation make use of peer-to-peer networks, this ensures that no network failure can do due to central node failure. Block chain serves as an unalterable ledger which allows messaging to take place in decentralized manner. A decentralized operation for communication and resource sharing is needed in the present world, data on a centralized server can be unsafe and an expensive experience [1].
Key Words: Blockchain, XMTP, Decentralized, Peer-toPeer, Ethereum
1.2 Motivation
1.INTRODUCTION
[3] Most popular chat applications today run in the data centres of big tech companies, and therefore the users must entrust their data with these companies, hoping that the data is securely stored on the servers that they have no control of. In the recent years, the unpredictable success of cryptocurrencies leads to a revolution in the decentralized economy, and we envision that a decentralized chatting tool may solve the trust and data privacy issues [3].
Blockchain is a core technology for secure, decentralized data management. It uses cryptographic security, consensus protocols, and distributed ledgers to provide transparency and tamper-resistance. Decentralized blockchain is a much more secure and reliable over central networks. This is why it lends itself to applications where data integrity and trust in users are critical, such as finance, health care, supply chains, and identity verification.
All messaging history is on servers owned or trusted by the client. The Matrix protocol is one of the solutions that has gained popularity among corporations and individuals because of its ease of use and abundant security features, and what we decided to base our implementation on this protocol.
1.3 Problem Statement The loss of trust and user privacy in the shift to centralized digital platforms is what the war cry has shaped so far. The new generation of centralization brings with massive corporations, amassing multiple heaps of personal data, where one can sell for profit via targeted advertising or spying. To solve this problem, decentralized and usercentric alternatives are the solution. Decentralized platforms can regain privacy and trust by moving the control from central authorities to users as they have ownership of data.
Fig 1: Decentralized Application Structure
1.1 Background In Decentralized Structure there’s no centralized server for conversation. Clients communicate directly with other client or clients. By allowing the chat clients to discover and establish connections with one another, unless the physical network hardware or else power
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