Build an Encrypted RFID Vault Lock with Arduino Mega 2560 – AES-128 on MIFARE Cards

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

This kit lets you build a high-security vault lock that reads encrypted RFID cards, decrypts unique IDs using AES-128 on the Arduino Mega, and validates them against a stored cryptographic hash before triggering a solenoid relay. The system mirrors commercial access control units, giving you hands-on experience with real-world embedded security protocols.

What You'll Build

You will assemble a complete, standalone access control unit with an OLED display, a real‑time clock for time-stamped logs, and a solenoid lock that responds only to authorized MIFARE Classic cards holding encrypted UIDs. The finished lock can secure a personal vault, server rack, or equipment cabinet with military-grade logic entirely on-device.

What You'll Learn

• Implement AES-128 encryption and decryption on Arduino Mega
• Read and write encrypted UIDs on MIFARE Classic cards via MFRC522
• Verify cryptographic hashes against stored values to authorize unlock
• Integrate DS3231 RTC for time-stamped access event logging

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Advanced electronics enthusiasts, B.Tech ECE/EEE students building cryptography projects, security system integrators prototyping access control, and participants in events like Smart India Hackathon who need a robust, production-grade demonstration. The kit assumes prior Arduino experience and a willingness to dive into embedded security concepts.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.