CoolWallet Pro Firmware

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Introduction

CoolWallet Pro Firmware is a Javacard firmware designed specifically for the CoolWallet Pro. It offers advanced features for private key management, signing, and transaction data composition. The firmware focuses on developing a secure element solution using Java Card technology to ensure a high level of security for cryptographic operations and the protection of sensitive data.

Key Features

• Private key management: Safely store and manage private keys within the secure element of the CoolWallet Pro.
• Signing: Perform secure and verifiable digital signatures for transactions and authentication purposes.
• Transaction data composition: Generate and compose transaction data in a secure manner, ensuring data integrity and confidentiality.

Security and Privacy

The CoolWallet Pro Firmware prioritizes security and privacy to protect users' digital assets. It leverages the advanced security features of Java Card technology, providing a robust and tamper-resistant environment for cryptographic operations. With the CoolWallet Pro Firmware, users can have confidence in the confidentiality, integrity, and authenticity of their transactions and sensitive data.

Supported Algorithms

Hash:

• Blake2b
• HmacSha
• Sha2
• Sha3
• Ripemd

Signature:

• Ed25519
• Secp256k1
• Curve25519
• Bip32-Ed25519 (Cardano Signature)

Environment Setup

To successfully build and set up the development environment for this project on Windows, please follow the instructions below:

Prerequisites

• JDK 8 (64-bit)

Setting Up Environment Variables

After installing Java, it is essential to set up environment variables on your Windows computer.

System Variables

• JAVA_HOME: Set the path to the JDK installation directory.
• PATH: Add the following paths to the system's PATH variable:
  • %JAVA_HOME%\bin

Required Tools Installation

To ensure a smooth compilation process, it is recommended to have the following programs and versions installed:

• Eclipse Luna
• JCOP_Tools_5.32.0.4

JCOP Tools Installation

1. Download the JCOP Tools installation package and save it to a directory of your choice.
2. Launch Eclipse IDE.
3. From the menu bar, go to Help > Install New Software.
4. In the Install dialog, click on Add to add new features.
5. In the Add Site dialog:
   • Provide a descriptive name, such as 'NXP JCOP Tools'.
   • If you have unpacked the JCOP Tools package, select Local... and navigate to the root folder of JCOP Tools.
   • If JCOP Tools is a ZIP file, select Archive... and navigate to the ZIP file.
6. Restart Eclipse to complete the installation.

Activating JCOP Tools

1. Open Eclipse and navigate to File > New > Java Card Project.
2. Choose the appropriate wizard:
   • Create a Java Card project.
   • Select the licensed JCOP: JCOP_Tools_activation_workspace.

Installation

To install the project, please follow the steps below:

Step 1: Cloning the Repository

Clone the repository by running the following command in your terminal or command prompt:

git clone [email protected]:CoolBitX-Technology/coolwallet-pro-se.git

Step 2: Initialize and Update Submodule

Initialize and update the submodule by running the following commands:

$ git submodule init
$ git submodule update

Step 3: Run the Installation Script

Run the installation script by executing the following command:

$ cd coolwallet-pro-se-crypto
$ javac Installation.java
$ java Installation

Note: The Crypto Library is an internal library provided by CoolBitX, offering a range of encoding and digital signature algorithms.

Building the Project

After executing the Installation script, proceed with the following steps in Eclipse:

1. Click on Project > Clean.
2. Check the box for Clean projects selected below.
3. Select CoolWalletS_3rd project.
4. Check the box for Start a build immediately.
5. Check the box for Build only the selected projects.

Upon successful build completion, the coolbitx.cap file will be generated in the following location: \coolwallet-pro-se\bin\coolbitx\javacard.

License

This project is licensed under the CoolBitX Limited Use License.

Security Vulnerability Disclosure

If you discover any security vulnerabilities, please contact [email protected] For more details, refer to the Bounty Project. Do not disclose the content directly on public forums.

Feel free to contact us for any inquiries or support.