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I’m building a proof-of-concept for my university thesis: a decentralized authentication system based on blockchain. The goal is to implement a web application where users authenticate by signing a message with MetaMask, demonstrating a decentralized login mechanism using cryptographic signatures. Frontend • A lightweight interface (React preferred) that connects to MetaMask using [login to view URL] • Prompt the user to sign a message • Display authentication result clearly (success / failure) Backend • Node.js service (Express preferred) • Generate a nonce or message to sign • Verify the signed message against the user’s public wallet address • Return JSON response indicating authentication result Integration & Code Quality • Clean and modular structure (important for academic use) • Clear comments and maintainable code • Include a short README with setup instructions Notes • This is an academic prototype, not a production system • No personal data (email, user ID) should be collected • Wallet address will act as the user identifier Timeline Delivery within one month is ideal. Please suggest milestones so I can review progress step by step.
ID Projek: 40325831
85 cadangan
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Hi, With Asad's diverse and comprehensive skill set, I am confident in delivering an exceptional decentralized authentication system prototype for your academic needs. My experience in Frontend Development with tools like React JS and Backend Development skills with Node.js, as well as my proficient knowledge of blockchain technology, aligns perfectly with the requirements of this project. What sets my services apart is my commitment to quality. As detailed as specified in your project description, I will ensure clean and modular code using best practices to make it as maintainable as possible even after completion. To ensure your convenience, I will also include a thorough README document which provides a seamless setup process. Given the timeline, I propose dividing the project into manageable milestones ensuring that progress is validated step by step. With my client-centered approach, proficiency in MetaMask, strong acumen in blockchain and cryptography along with a 30 Day support coverage post project completion, your satisfaction is absolutely guaranteed. Let's collaborate to bring this innovative concept of decentralized login mechanism to life and revolutionize authentication systems! Thanks!
$280 USD dalam 1 hari
7.0
7.0

I understand you need a proof-of-concept web app demonstrating decentralized authentication via MetaMask, with frontend signing and backend signature verification. At TechForge Innovations, we have a 4.9 rating from 37 reviews, a 95% job success rate, and experience building blockchain-based web apps, cryptographic authentication flows, and lightweight React/Node.js prototypes. Key deliverables include: • React frontend connecting to MetaMask, prompting users to sign messages and displaying authentication results. • Node.js/Express backend generating nonces, verifying signatures, and returning structured JSON responses. • Modular, well-documented code with clear comments and maintainable structure for academic review. • README with setup instructions for running the prototype locally. • Stepwise milestone plan for review and feedback throughout development. Next step: I can provide an initial frontend mockup and backend nonce/signature flow within 5–7 business days, with full delivery of the working prototype within 3–4 weeks.
$750 USD dalam 24 hari
6.3
6.3

Hello. Thanks for your job posting. ⭐Decentralized Authentication System Prototype (Blockchain + MetaMask + Node.js)⭐ I'm the developer you're looking for. I can successfully complete your project. Let's chat for a more detailed discussion. Thank you. Maxim
$100 USD dalam 19 hari
5.3
5.3

Hi there, I’m excited about your project for a decentralized authentication system using blockchain for your thesis! With my extensive experience in web development and blockchain integration, I can help you create a robust proof-of-concept. To execute this, I propose to develop a React frontend that will seamlessly connect to MetaMask using ethers.js. Users will be prompted to sign messages, and I’ll ensure the authentication results are clearly displayed. On the backend, I'll set up an Express service in Node.js to generate nonces for signing and verify these signatures against users’ public wallet addresses, returning a JSON response for clarity. To enhance your prototype, I recommend including a simple user interface to guide them through the signing process. I've previously developed a similar project that utilized secure blockchain authentication methods. I can deliver the first version in 30 days and suggest milestones for your review. How often would you like updates on the progress?Regards, Khurshid Ahmed
$280 USD dalam 1 hari
5.1
5.1

Hi, I'm a Full Stack Developer with experience in Node.js and building secure authentication systems. This decentralized authentication prototype based on blockchain, MetaMask, and Node.js for your thesis aligns well with my skills. I'm comfortable with both backend and API integrations, and I can ensure a clean architecture for reliable performance. I'm confident I can deliver a robust proof-of-concept for your university thesis. Looking forward to working with you. Thanks and regards, Vinod Malviya
$275 USD dalam 7 hari
4.1
4.1

As an accomplished web and software developer, I'm confident in my ability to not just meet, but exceed your expectations in delivering an academic prototype for your decentralized authentication system. With a keen focus on backend development supported by impressive skills in Node.js and JavaScript, I'll expertly generate nonces or messages for signing and effectively verify them against user public wallet addresses via the clean and reliable Express service. Building smart & scalable digital solutions is at the core of my expertise. Your project demands a solution that is both technically sound and future-ready.I guarantee the same through my vast experience of transforming complex requirements into clean, efficient, modular, and high-impact codebases to deliver undeniable value.
$250 USD dalam 5 hari
3.8
3.8

Hi, I’m an experienced blockchain developer and I can build your decentralized authentication prototype exactly as described. I’ll implement a lightweight web app where users authenticate by signing a message with MetaMask, demonstrating a decentralized login via cryptographic signatures rather than traditional credentials. The backend will be a clean Node.js service (Express) that generates nonces, verifies signatures against wallet addresses, and returns clear JSON responses. I focus on clean, modular code with clear comments and documentation, so you (or your thesis reviewers) can easily understand, extend, and deploy the system. I’ll also include a short README with setup instructions and ensure the frontend connects smoothly with MetaMask on the preferred chain. This will be a solid academic prototype rather than a production auth system. One quick question: which Ethereum testnet (Goerli, Sepolia, etc.) do you prefer for signing and verification? I can start right away once I have your requirement details.
$250 USD dalam 7 hari
3.5
3.5

★•══•★ Hi client ★•══•★ I have hands-on experience building decentralized login flows with MetaMask and ethers.js. For example, in a blockchain proof-of-concept project, I implemented a React frontend that prompts users to sign a nonce, verifies signatures on a Node.js/Express backend, and returns authentication results in JSON. I follow modular, clean code practices with clear comments and README instructions, making the project maintainable and easy to review academically. The system avoids personal data and uses wallet addresses as identifiers, perfectly aligning with decentralized principles. Milestones I suggest: Frontend skeleton + MetaMask connection Backend nonce generation + signature verification Integration and end-to-end authentication testing Final code review, README, and documentation I can deliver this proof-of-concept within 3–4 weeks. Ready when u are. Let’s discuss milestone specifics and wallet handling logic.
$400 USD dalam 30 hari
3.2
3.2

Hello, Will the authentication system need to support multiple blockchain networks, or will it be specifically designed for one blockchain platform? Additionally, do you have a preference for the type of cryptographic algorithm to be used for message signing with MetaMask? I am committed to taking full ownership of the project execution, ensuring stable and production-grade delivery. Communication will be direct and efficient throughout the process. Let’s align on the details and move forward. Best regards, Vitalii
$250 USD dalam 7 hari
2.9
2.9

HIRE ME!!! I have already rich experience in your project field. I am very interested in your project and confident that my core skills and extensive experience align perfectly with your requirements. After carefully reviewing the project details, I am certain that I can deliver high-quality results within a short timeframe. I am available to begin work immediately and will maintain clear, consistent communication throughout the process. I look forward to the opportunity to collaborate with you. Best regards, Huy
$100 USD dalam 5 hari
2.7
2.7

✅✅✅Hi there✅✅✅ I am excited about the opportunity to work on your proof-of-concept project for a decentralized authentication system based on blockchain for your university thesis. I have a strong background in blockchain development and experience with building similar decentralized applications. To meet your project requirements, I propose the following approach: 1. Frontend Development: I will create a lightweight React interface that seamlessly connects to MetaMask using ethers.js. The interface will guide users through the authentication process and clearly display authentication results. 2. Backend Implementation: I will develop a Node.js service using Express to generate a secure nonce or message for users to sign. The service will verify the signed message against the user's public wallet address and provide a JSON response indicating the authentication result. 3. Integration & Code Quality: I will ensure a clean and modular code structure with clear comments for academic use. I will also include a detailed README file with setup instructions for easy deployment. My expertise in blockchain development, proficiency in React, Node.js, and experience in building secure authentication systems make me a perfect fit for this project. I am committed to delivering high-quality work within your specified timeline. Looking forward to your positive response. Anton Dehtearuc
$250 USD dalam 7 hari
2.1
2.1

I already have similar web3-blockchain projects done before. I can share more details on a call. I am sure I can deliver results in 2days. Look forward to hearing from you. Best regards.
$250 USD dalam 7 hari
0.0
0.0

Hi, Should the main focus be making the MetaMask sign-in flow clean and easy to explain in your thesis, with nonce generation and signature verification clearly separated? Recently, I built a Web3 login flow where users authenticated by signing a wallet message, and the backend verified the signature against the public address without using emails or passwords. I used React, wallet integration, Node.js APIs, and modular backend logic so the code stayed clean and easy to study. For this project, I will build a simple React + Express prototype with nonce-based signing, wallet verification, and clear JSON auth responses. HOpe to discuss more on chat Best Artem
$300 USD dalam 7 hari
0.0
0.0

Dear Client, How are you? I hope this proposal finds you well. I'M A CERTIFIED & EXPERIENCED EXPERT This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.
$400 USD dalam 1 hari
0.0
0.0

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