Authentication Mechanism

Authentication Mechanism

DA3N's authentication system ensures secure, privacy-preserving access to the DeFAI Agent OS, utilizing advanced cryptography and blockchain wallet integration.

Wallet-Based Authentication

Supported Wallets

DA3N supports the following blockchain wallets:

• MetaMask

• WalletConnect

• Coinbase Wallet

• Trust Wallet

• Phantom (Solana)

• Ledger Hardware Wallets

Authentication Flow

Wallet Connection

1. User selects preferred wallet: The user chooses their blockchain wallet (e.g., MetaMask, WalletConnect) to connect to DA3N.

2. Initiates connection via wallet interface: The user approves the connection request through their wallet's interface, establishing a secure link to DA3N.

3. Signing issued by DA3N: DA3N generates a unique cryptographic challenge for the user to sign, ensuring secure authentication.

// // Example authentication request
const authRequest = {
  challenge: 'unique_cryptographic_challenge', // Unique challenge for user verification
  timestamp: Date.now(), // Current timestamp to ensure request freshness
  nonce: generateNonce() // Random nonce to prevent replay attacks
};

// User signs the challenge using their blockchain wallet
const signature = await wallet.signMessage(JSON.stringify(authRequest));

Sign the Challenge

• The user signs the provided challenge using their blockchain wallet. This cryptographic signature proves their identity and ownership of the wallet.

Verification Process

1. Validate wallet signature: DA3N verifies the signature to ensure it matches the challenge and was signed by the user's wallet.

2. Check wallet ownership: The system confirms that the wallet address corresponds to the user's account.

3. Generate temporary access token: Upon successful verification, DA3N issues a temporary access token, granting the user secure access to the platform.

Authentication Parameters

1. Signature Validation:

• ECDSA signature verification: Ensures the authenticity of the user's signature using Elliptic Curve Digital Signature Algorithm (ECDSA).

• Public key authentication: Validates the user's identity by verifying their public key.

• Multi-chain support: Compatible with multiple blockchain networks for seamless authentication across ecosystems.

1. Zero-Knowledge Verification Mechanism:

• Non-Interactive Proofs: Eliminates the need for direct interaction between the prover and verifier.

• Reduced Computational Overhead: Optimizes performance by minimizing resource-intensive operations.

• Enhanced Privacy Protection: Ensures sensitive information remains confidential during verification.

// class ZeroKnowledgeVerification:
    def generate_proof(self, private_data):
        """
        Generates a non-interactive zero-knowledge proof using the provided private data.
        """
        proof = zk_proof_generation(private_data)
        return proof
    
    def verify_proof(self, proof, public_parameters):
        """
        Verifies the zero-knowledge proof without exposing the private data.
        """
        return zk_proof_verification(proof, public_parameters)

Error Handling

Common Authentication Errors

• WALLET_NOT_CONNECTED: Wallet connection failed

• INVALID_SIGNATURE: Cryptographic signature verification failed

• ACCESS_DENIED: Authentication rejected

Troubleshooting

1. Ensure wallet is compatible

2. Verify wallet connection

3. Check network connectivity

4. Regenerate authentication challenge

Best Practices

• Keep wallet private keys secure

• Use hardware wallets for enhanced security

• Regularly update wallet applications

• Enable two-factor authentication where possible