Encrypted contact messaging system
Why Choose This Project?
Contact forms on websites are often the weakest link for data theft or spam attacks. Sensitive user messages (like personal queries, complaints, or business communications) can be intercepted if transmitted in plain text. This project ensures end-to-end encryption of all contact form messages, meaning only the admin (or intended recipient) can decrypt and read them. It enhances data privacy, confidentiality, and trustworthiness of online communication.
What You Get in This Project
A secure contact messaging platform where messages submitted via the website’s "Contact Us" form are encrypted before storage and transmission.
Admins can log in, decrypt, and read user messages securely via a dashboard.
Technology Stack
| Layer | Technology |
|---|---|
| Frontend | HTML, CSS, Bootstrap, JavaScript (Form validation + Encryption JS library like CryptoJS) |
| Backend | Node.js (Express) / Java Spring Boot / Python Flask |
| Database | MySQL / PostgreSQL / MongoDB (encrypted storage) |
| Encryption | AES-256 / RSA (Hybrid encryption for strong security) |
| Auth | JWT / OAuth2 for admin authentication |
| Optional | reCAPTCHA / hCaptcha (for bot protection) |
Key Features
| Feature | Description |
|---|---|
| Encrypted Form Submission | Messages are encrypted in the browser before sending to the server. |
| Secure Storage | Encrypted messages stored in the database (no plain text). |
| Admin Authentication | Secure login system for authorized staff only. |
| Decryption Dashboard | Admin panel to decrypt & read user messages. |
| Form Validation | Input validation (name, email, message) before encryption. |
| Bot Protection | Captcha or Honeypot to block spam bots. |
| Audit Logging | Track message submissions and decryption attempts. |
| Email Notifications | Notify admin of a new message (without exposing full text). |
How It Works
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User Submits Message
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User fills the secure contact form.
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Client-side JavaScript encrypts the message using AES-256.
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Data Transmission
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Encrypted message is sent via HTTPS to the backend server.
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Secure Storage
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The backend stores only encrypted text + metadata (time, sender email) in the database.
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Admin Access
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Admin logs into the secure dashboard.
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Message is retrieved in encrypted form.
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Decryption & Viewing
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Admin decrypts the message using a private key or password-based decryption.
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Message is displayed in readable format.
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Security Features
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End-to-End Encryption → Only sender & admin can read the messages.
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AES/RSA Hybrid Encryption → Strong cryptographic model.
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TLS Enforcement → All data transfers over HTTPS.
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Captcha/Anti-Bot → Prevents spam/fake submissions.
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Role-Based Access → Only verified admins can decrypt messages.
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Audit Logs → Logs all decryption attempts for accountability.