# Technical Architecture

#### ICP Integration

Waste2Earn leverages the Internet Computer Protocol for several key advantages:

* **Canister Smart Contracts**: Our dApp runs on secure, scalable canister technology
* **Chain-Key Cryptography**: Enabling secure, decentralized authentication
* **HTTP Outcalls**: Allowing our on-chain logic to interact with real-world data
* **ICRC Token Standard**: Ensuring compatibility across the ICP ecosystem

#### Web3 Authentication

Users can access Waste2Earn through multiple secure authentication methods:

* **Internet Identity (II)**: ICP's native authentication system using biometrics and device keys
* **NFID**: Non-Fungible Identity providing pseudonymous authentication
* **SIWE (Sign-In with Ethereum)**: Connect using existing Ethereum wallets like MetaMask

#### Security Measures

We implement comprehensive security protocols to protect user funds and data:

* **Canister Security**: Regular audits of smart contract code
* **Multi-Signature Authorization**: For large transfers and administrative actions
* **Rate Limiting**: To prevent brute force attacks
* **Data Encryption**: For sensitive user information
* **Bug Bounty Program**: Rewarding responsible disclosure of security vulnerabilities
