Create README.md

Author: Satyam1923

README.md

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+# VeriDoc
+
+## Team Members:<br>
+
+1.Satyam Rathor(22bec042)<br>
+
+2.Aditya Roushan(22bec003)<br>
+
+3.Pratush Rai(22bec035)<br>
+
+4.Ansh Goyal(22bcs014)<br>
+
+
+## Introduction
+
+**VeriDoc** is a secure, scalable document verification system designed to verify the integrity of files using advanced cryptographic algorithms. It employs digital signatures, SHA-256, and RSA algorithms to ensure data authenticity and integrity. 
+
+- **Backend**: Built with Python for cryptographic operations and API management.  
+- **Frontend**: Developed using Next.js with Tailwind CSS and Redux Toolkit for state management.  
+- **Storage and Authentication**: Utilizes Firebase for file storage and user authentication.  
+- **Deployment**: Docker ensures seamless scalability and deployment.
+
+---
+
+## Tech Stack
+
+- **Frontend**:  
+  - Next.js  
+  - Tailwind CSS  
+  - Redux Toolkit  
+  - Firebase Authentication  
+
+- **Backend**:  
+  - Python  
+
+- **Cryptography**:  
+  - SHA-256 (Hashing)  
+  - RSA (Key Generation & Digital Signatures)  
+
+- **Storage**:  
+  - Firebase  
+
+- **Containerization**:  
+  - Docker  
+
+---
+
+## Features
+
+### **Core Features**
+- **Secure File Upload**: Users can upload files securely to Firebase.  
+- **Cryptographic Verification**: Ensures document integrity using SHA-256 hashing and RSA-based digital signatures.  
+- **File Integrity Check**: Compares uploaded files to detect any alterations.  
+- **File Reference and Comparison**: Allows users to upload a new file and compare it against previously stored versions.  
+- **User Authentication**: Secure login and registration via Firebase Authentication.  
+
+### **Cryptographic Operations**
+- **Signing**: Creates a digital signature for the provided message.  
+- **Hashing**: Generates a SHA-256 hash of the data.  
+- **Verification**: Validates data integrity using the hash and digital signature.  
+
+### **Deployment**  
+- **Dockerized Deployment**: Streamlined deployment and enhanced scalability using Docker.
+
+---
+
+## API Endpoints
+
+- **POST `/api/extract-text-from-pdf`**  
+  Extracts text from a PDF file.
+
+- **POST `/api/sign`**  
+  Signs a message. Takes an input message and returns:  
+  - Message  
+  - Message Hash  
+  - Public Key  
+  - Digital Signature  
+
+- **POST `/api/verify`**  
+  Verifies the integrity of a message by comparing its hash with the digital signature.  
+  - Returns: `true` if valid, otherwise `false`.  
+
+- **POST `/api/hash`**  
+  Hashes the provided data using SHA-256 and returns the hash value.
+
+---
+
+## Source Code
+
+Access the source code on GitHub:  
+[VeriDoc Repository](https://github.com/dotdot0/crypto)
+
+## Live Demo
+
+Try it live:  
+[VeriDoc Live Application](https://crypto-zeta-dun.vercel.app/)
+
+---
+
+## License
+
+This project is licensed under the [MIT License](LICENSE).