https://github.com/matedev01/joel_atecc608a

USB OTP Security System: A project combining the ESP32-S3 microcontroller, ATECC608A CryptoAuthentication device, Windows driver, and LibUSB for secure communication, OTP generation, and time synchronization. 🚀
https://github.com/matedev01/joel_atecc608a

driver esp32 esp32s3 firmware flash-encrypt hmac libusb otp secure-boot security usb visualgdb

Last synced: 2 months ago
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USB OTP Security System: A project combining the ESP32-S3 microcontroller, ATECC608A CryptoAuthentication device, Windows driver, and LibUSB for secure communication, OTP generation, and time synchronization. 🚀

• Host: GitHub
• URL: https://github.com/matedev01/joel_atecc608a
• Owner: matedev01
• Created: 2024-04-13T12:51:49.000Z (about 2 years ago)
• Default Branch: master
• Last Pushed: 2024-04-16T19:10:28.000Z (about 2 years ago)
• Last Synced: 2025-02-27T00:51:05.704Z (over 1 year ago)
• Topics: driver, esp32, esp32s3, firmware, flash-encrypt, hmac, libusb, otp, secure-boot, security, usb, visualgdb
• Language: C
• Homepage:
• Size: 1.31 MB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# USB OTP Security System 🚀

### Overview

This project focuses on secure communication between a Windows driver and a hardware device using the CP2102N USB-UART bridge. The primary goals are to generate a 10-bit OTP (One-Time Password) based on date-time, hardware ID, and a private key, and to ensure secure boot and flash encryption. Additionally, the project involves time synchronization with NTP servers and verification of OTP passwords using a challenge-response model.

1. **Project Overview**:

   - Provide a brief introduction to your project. Explain its purpose, key features, and any relevant context.

   - Mention that the project involves communication between a Windows driver and a device using the CP2102N USB-UART bridge.

2. **Hardware and Software Requirements**:

   - List the hardware components (e.g., CP2102N, ATECC608A, esp32-s3, DS1339U-33+T&R) required for your project.

   - Specify any software dependencies (e.g., ESP-IDF, Windows 10 drivers).

3. **Communication with Windows Driver**:

   - Describe how the CP2102N USB-UART bridge facilitates communication between the device and the Windows driver.

   - Mention the shared VID/PID and the use of `uart_async_rxtxtasks`.

4. **OTP Generation and Security**:

   - Explain how the 10-bit OTP is generated based on date-time, hardware ID, and a private key.

   - Discuss the importance of secure boot and flash encryption.

5. **ATECC608A Integration**:

   - Detail how the private key is stored in the ATECC608A CryptoAuthentication device.

   - Highlight the steps involved in saving the private key if the Windows driver sends it.

6. **OTP Verification and Challenge-Response Model**:

   - Describe how the OTP password is verified using a challenge-response security model.

   - Explain the role of HMAC authentication codes.

7. **Time Synchronization with NTP Servers**:

   - Discuss the need to sync the device's RTC (DS1339U-33+T&R) with NTP servers.

   - Specify the NTP servers (e.g., ntp.time.nl, ntp1.time.nl, ntp2.time.nl) you plan to use.

8. **Hardware Connections**:

   - Provide a visual representation or a table showing how the ATECC608A, esp32-s3, DS1339U-33+T&R, and CP2102N are connected.

   - Include pin mappings (e.g., I2C SCL/SDA, GPIO connections).

9. **Example Code and Implementation**:

   - Create a dedicated section with step-by-step instructions for setting up the project.

   - Include code snippets or links to relevant files (e.g., ESP-IDF code, Windows driver code).

   - Explain how to compile and run the project.

   - Consider creating a separate folder in your repository for code examples.

10. **Final Notes and Acknowledgments**:

    - Conclude your README with any additional information, acknowledgments, or credits.

    - Encourage contributions, bug reports, and feedback from the community.