ABSTRACT
Email communication is a cornerstone of modern interaction, yet traditional encryption methods are vulnerable to evolving threats such as eavesdropping and data breaches. Quantum Key Distribution (QKD) offers unparalleled security through quantum keys used for encryption. This project develops QuMail, an email client that integrates QKD with existing email protocols. Due to unavailable quantum hardware, QKD is simulated using Qiskit, with QuMail's Key Manager (KM) obtaining quantum keys and using AES for encryption. The application is designed to work seamlessly over untrusted networks and existing email services, ensuring both security and interoperability.
