project · Mar 2026

WeCrypt (Key Distribution Center)

Organisation: Render
Status: Production Ready

Source codegithub.com/Camalzadeh/key_distribution_center Livewecrypt-app.onrender.com

Overview

A sophisticated end-to-end encrypted messaging platform focusing on cryptographic integrity. It implements a custom Key Distribution Center (KDC) logic, combining symmetric and asymmetric encryption for secure data exchange.

Project context

Built with focus on cryptographic integrity at UFAZ (French-Azerbaijani University) - 2025.

Key features

Custom Cryptography Engine: Implementation of both classical and modern ciphers
Secure Envelope Messaging: Symmetric keys vaulted using RSA encryption
RSA Key Management: Automatic per-user asymmetric keypair management
Premium UI: Glassmorphism design with seamless Dark/Light mode support
Cloud Native: Optimized for high-performance deployment with Docker

Technical details

Database: PostgreSQL
Language: Java 17+
Framework: Spring Boot
Deployment: Dockerized (App + Database stack)
Cryptography engine: Custom multi-layered encryption suite

Cryptographic blueprint

Asymmetric layer

RSA Key Management (Automatic keypair generation for every user)

Block cipher modes

ECB (Electronic Codebook)
CBC (Cipher Block Chaining - Recommended)
CFB (Cipher Feedback)
OFB (Output Feedback)

Symmetric algorithms

Caesar Substitution (with block mode support)
Vigenère Polyalphabetic
Playfair Digraph (5x5 matrix)
Rail Fence Transposition

Installation

Local dev: ./mvnw spring-boot:run (requires Java 17 & PostgreSQL)
Local url: http://localhost:8080
Docker method: docker-compose up --build

Deployed organization

Render

Documents

WeCrypt Logo