HSM - Hardware Security Module System

Overview

This project implements a Hardware Security Module (HSM) simulation system for secure cryptocurrency transaction signing and validation. The system consists of two main components:

1. HSM Simulator: A secure environment that generates and manages cryptographic keys for signing Bitcoin and Ethereum (EVM) transactions.
2. Data Validator: A service that interacts with the HSM Simulator to validate and process cryptocurrency transactions.

System Architecture

The overall flow of the system is shown below:

1. The HSM Simulator starts, generating new private keys and accounts for both Bitcoin (Taproot) and Ethereum (EVM).
2. The Data Validator interacts with the HSM to sign transactions and submit them on-chain.
3. The system supports multiple chains, including Bitcoin and EVM-compatible chains.

Key Features

• Multi-chain Support: Bitcoin and EVM-compatible chains
• Secure Key Management: Private keys are securely managed within the HSM
• Transaction Validation: Validates transaction data before signing
• Smart Contract Integration: EVM account contract for secure transaction execution
• Admin Key Recovery: Multi-signature admin key recovery mechanism

Communication Flow

1. The Data Validator sends signing requests to the HSM Simulator via NATS messaging
2. The HSM Simulator verifies the request, signs the transaction, and returns the signature
3. The Data Validator submits the signed transaction to the blockchain

Component Documentation

For detailed documentation on each component, please refer to:

• HSM Simulator Documentation
• Data Validator Documentation

Getting Started

To set up and run the complete system, follow these steps:

1. Set up the HSM Simulator by following its documentation
2. Configure the Data Validator according to its documentation
3. Start both services to enable secure transaction signing and validation

For more details, refer to the individual service documentation inside their respective folders.