Anonymous messenger
anonymous messenger on the server
Briefly: what do you want (summarizing)
- Admin creates accounts — to prohibit free registration.
- User logs in, enters the password (the one given by the admin).
- The browser generates a master key from the password (KDF).
- The browser requests the encrypted private key from the server (available to everyone).
- The browser decrypts the private key with the master key and uses it to decrypt messages.
- Sending messages: others send to username — this corresponds to the public key.
Technologies (recommended)
- Client: JS + libsodium.js (in the browser) — as it provides crypto_pwhash (Argon2id-style), crypto_box/crypto_box_seal, secretbox.
- Server: Node.js + Express + any DB (Postgres/Mongo/S3) — stores encrypted_private_key, public_key, messages (ciphertext).
- TLS — mandatory (HTTPS). CSP/SRI — mandatory
-
4 days356 USD
4 days356 USD
I have been working with Node.js since 2019.
I have experience with the stack and RSA cryptography on both ends (client-server)
We can implement it, message me privately.
-
25 days445 USD
4524 20 0 25 days445 USD
привіт!
Ми — команда розробників з досвідом у створенні безпечних веб-рішень та end-to-end шифрування.
Готові реалізувати для вас анонімний месенджер з адміністрованим доступом та високим рівнем захисту даних.
Ми забезпечимо повний цикл — від проектування архітектури до деплою та супроводу.
-
30 days445 USD
692 21 0 30 days445 USD
Hello. I can do your project. I have experience. Write to me and we will agree.
-
5 days445 USD
1595 7 0 5 days445 USD
Good day!
My name is Roman, and I am among the top 6 developers in the "Artificial Intelligence and Machine Learning" category out of ~1600 specialists on the platform.
I guarantee:
- Fast and quality task execution
- Strict adherence to deadlines
- Regular communication throughout the entire process
I would be happy to discuss the details of your project in private messages.
-
15 days334 USD
2203 34 0 15 days334 USD
Good day, can it be done as a web application? You're not talking about a mobile app, right? It's also not quite clear about the interface, how complex it should be. Approximately how many users will there be? I won't take on making a new Telegram)
-
10 days334 USD
1014 6 0 10 days334 USD
Hello. I have reviewed your technical specifications regarding the anonymous messenger. I am ready to implement the project taking into account all requirements for maximum security and privacy.
I will perform
- frontend in React using libsodium.js for encryption/decryption;
- backend in NestJS with support for TLS, CSP/SRI;
- storage of encrypted keys and messages in MongoDB.
I have 3 years of experience in creating full-fledged applications for both backend and frontend parts.
I would be happy to discuss the details of our collaboration.
-
6 days334 USD
156 6 days334 USD
Hello
I am a Python and Java developer and I am ready to create such a messenger.
The principle of operation is clear and the development will take 4-6 days. Let's discuss the task in more detail in private messages.
-
10 days223 USD
1101 7 1 10 days223 USD
Hello, I am ready to help implement an anonymous messenger.
I have over 5 years of experience in developing fully functional services using FastAPI, PostgreSQL, and Redis, including working with WebSocket.
I propose to implement the server layer on FastAPI with bidirectional communication via WebSocket, store encrypted private keys and messages in PostgreSQL, and use Redis-based rate limiting for quick access control.
This approach will ensure the security of keys within the client assembly, allow users to exchange messages instantly, and the limit will protect the service from DoS attacks.
I am ready to start working at any time convenient for you.
-
5 days223 USD
216 5 days223 USD
Good day! I can implement React + FastAPI. We can discuss the details.
-
Зачем брать моё сообщение из нашего диалога, прогонять через ии, и создавать новый ордер на фриланс бирже?
-
я не брал ваше смс, а просто написал в ии если этот мессенджер сделать на сервере
-
Current freelance projects in the category Javascript and Typescript
Development of the AM Mobility platform (car service, parking, insurance, car rental)
5770 USD
We are looking for a team or an experienced Full Stack developer to create the MVP of the AM Mobility platform. AM Mobility is a unified digital ecosystem for motorists, combining in one application and web platform: parking; car service; tire fitting; car wash; car rental;… Javascript and Typescript, Web Programming ∙ 2 days 7 hours back ∙ 101 proposals |
Gsap animations
22 USD
Good day. Corrections need to be made in the current project. A specialist is needed who works well with gsap/lenis. Animation of cards needs to be done. Detailed specifications here:… Javascript and Typescript, Web Programming ∙ 2 days 13 hours back ∙ 21 proposals |
Commercial on-premise video communication platform "ViM"It is required to develop an on-premise video conferencing system with a basic calculation for 100 simultaneous connections (10 isolated rooms of 10 people each). The platform should have a built-in architecture for future horizontal scaling up to 1000 users by adding new media… Javascript and Typescript, Web Programming ∙ 3 days 8 hours back ∙ 32 proposals |
I am looking for a mentor with Claude Code to launch a web project from scratch.Brief about the task: I am a beginner with no programming experience. I have a ready specification for website development (42 pages, Next.js, PostgreSQL). I want to implement it myself using Claude Code - I need a specialist who will set up the environment and teach me how to… Javascript and Typescript, Tuition ∙ 4 days 12 hours back ∙ 18 proposals |
Website design updateIt is necessary to update the design of the existing website using HTML, CSS, JS: refresh the appearance, make it modern and responsive for mobile devices. Smooth animations and interactive elements need to be added. HTML & CSS, Javascript and Typescript ∙ 5 days 6 hours back ∙ 90 proposals |
Ukraine