Security Overview

// Privy integration example
import { PrivyProvider } from '@privy-io/react-auth';

function OakNetworkApp() {
  return (
    <PrivyProvider
      appId="your-privy-app-id"
      config={{
        embeddedWallets: {
          createOnLogin: 'users-without-wallets',
          requireUserPasswordOnCreate: true
        },
        loginMethods: ['email', 'google', 'apple'],
        appearance: {
          theme: 'dark',
          accentColor: '#10b981'
        }
      }}
    >
      <App />
    </PrivyProvider>
  );
}

// Turnkey integration example
import { TurnkeyClient } from '@turnkey/turnkey-sdk';

const turnkeyClient = new TurnkeyClient({
  apiBaseUrl: 'https://api.turnkey.com',
  apiKey: process.env.TURNKEY_API_KEY,
  privateKey: process.env.TURNKEY_PRIVATE_KEY
});

// Create secure key for platform
const keyResponse = await turnkeyClient.createKeys({
  organizationId: 'your-org-id',
  keyName: 'oak-platform-key',
  curve: 'CURVE_SECP256K1',
  addressFormats: ['ADDRESS_FORMAT_ETHEREUM']
});

// Protocol Admin - Highest level access
modifier onlyProtocolAdmin() {
    require(msg.sender == GLOBAL_PARAMS.getProtocolAdminAddress(), "Not protocol admin");
    _;
}

// Platform Admin - Platform-specific access
modifier onlyPlatformAdmin(bytes32 platformHash) {
    require(msg.sender == s_platforms[platformHash].adminAddress, "Not platform admin");
    _;
}

// Campaign Owner - Campaign-specific access
modifier onlyCampaignOwner() {
    require(msg.sender == owner(), "Not campaign owner");
    _;
}

// Comprehensive input validation
function createCampaign(
    address creator,
    bytes32 identifierHash,
    bytes32[] calldata selectedPlatformHash,
    CampaignData calldata campaignData
) external {
    // Validate creator
    require(creator != address(0), "Invalid creator");
    
    // Validate identifier
    require(identifierHash != bytes32(0), "Invalid identifier");
    
    // Validate campaign data
    require(campaignData.launchTime > block.timestamp, "Invalid launch time");
    require(campaignData.deadline > campaignData.launchTime, "Invalid deadline");
    require(campaignData.goalAmount > 0, "Invalid goal amount");
    
    // Validate platforms
    for (uint256 i = 0; i < selectedPlatformHash.length; i++) {
        require(
            GLOBAL_PARAMS.checkIfPlatformIsListed(selectedPlatformHash[i]),
            "Platform not listed"
        );
    }
}

// Fee percentage bounds
uint256 public constant MAX_PLATFORM_FEE = 10; // 10% maximum

function setPlatformFee(bytes32 platformHash, uint256 feePercent) external {
    require(feePercent <= MAX_PLATFORM_FEE, "Fee too high");
    require(feePercent >= 0, "Fee cannot be negative");
    // ...
}

function contribute(address backer, uint256 amount) external {
    // 1. Checks
    require(amount > 0, "Invalid amount");
    require(!paused(), "Contract paused");
    
    // 2. Effects
    s_pledgedAmount += amount;
    s_contributions[backer] += amount;
    
    // 3. Interactions
    TOKEN.safeTransferFrom(backer, address(this), amount);
    
    emit Contribution(backer, amount);
}

// Reentrancy guard for critical functions
bool private locked;

modifier noReentrancy() {
    require(!locked, "Reentrancy detected");
    locked = true;
    _;
    locked = false;
}

// 1. Use established patterns
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

// 2. Implement proper access control
modifier onlyAuthorized() {
    require(authorized[msg.sender], "Not authorized");
    _;
}

// 3. Validate all inputs
function updateParameter(uint256 newValue) external {
    require(newValue > 0, "Invalid value");
    require(newValue <= MAX_VALUE, "Value too high");
    parameter = newValue;
}

// 4. Use safe math operations
import "@openzeppelin/contracts/utils/math/SafeMath.sol";

using SafeMath for uint256;

function calculateFee(uint256 amount) public pure returns (uint256) {
    return amount.mul(FEE_PERCENT).div(100);
}

// 1. Validate all inputs
function validateCampaignData(data) {
  if (!data.creator || !ethers.utils.isAddress(data.creator)) {
    throw new Error('Invalid creator address');
  }
  
  if (data.goalAmount <= 0) {
    throw new Error('Invalid goal amount');
  }
  
  if (data.deadline <= data.launchTime) {
    throw new Error('Invalid deadline');
  }
}

// 2. Handle errors gracefully
try {
  await contract.createCampaign(campaignData);
} catch (error) {
  if (error.message.includes('INVALID_INPUT')) {
    // Handle invalid input
  } else if (error.message.includes('UNAUTHORIZED')) {
    // Handle unauthorized access
  } else {
    // Handle unexpected errors
  }
}

// 3. Implement proper error handling
class SecureIntegration {
  async createCampaign(data) {
    try {
      this.validateInput(data);
      return await this.contract.createCampaign(data);
    } catch (error) {
      this.logError(error);
      throw new Error(`Campaign creation failed: ${error.message}`);
    }
  }
}

// 1. Secure admin keys
const adminWallet = new ethers.Wallet(process.env.ADMIN_PRIVATE_KEY);

// 2. Implement role-based access
class PlatformSecurity {
  constructor(adminWallet) {
    this.adminWallet = adminWallet;
    this.authorizedUsers = new Set();
  }
  
  async authorizeUser(userAddress) {
    // Implement authorization logic
    this.authorizedUsers.add(userAddress);
  }
  
  async createCampaign(userAddress, campaignData) {
    if (!this.authorizedUsers.has(userAddress)) {
      throw new Error('User not authorized');
    }
    
    return await this.createCampaignInternal(campaignData);
  }
}

// 1. Validate all platform data
function validatePlatformData(data) {
  const requiredFields = ['name', 'description', 'goalAmount'];
  
  for (const field of requiredFields) {
    if (!data[field]) {
      throw new Error(`Missing required field: ${field}`);
    }
  }
  
  // Validate specific fields
  if (data.goalAmount <= 0) {
    throw new Error('Goal amount must be positive');
  }
  
  if (data.deadline <= Date.now() / 1000) {
    throw new Error('Deadline must be in the future');
  }
}

// 2. Sanitize user inputs
function sanitizeInput(input) {
  return input
    .trim()
    .replace(/[<>]/g, '') // Remove potential HTML tags
    .substring(0, 1000); // Limit length
}

// Emergency pause functionality
function emergencyPause(string calldata reason) external onlyProtocolAdmin {
    _pause(reason);
    emit EmergencyPause(reason);
}

function emergencyUnpause(string calldata reason) external onlyProtocolAdmin {
    _unpause(reason);
    emit EmergencyUnpause(reason);
}

// Upgradeable implementation
contract CampaignInfoFactory is Initializable, Ownable {
    address public implementation;
    
    function updateImplementation(address newImplementation) external onlyOwner {
        require(newImplementation != address(0), "Invalid implementation");
        implementation = newImplementation;
        emit ImplementationUpdated(newImplementation);
    }
}

// Monitor for suspicious activities
class SecurityMonitor {
  async monitorTransactions() {
    const filter = contract.filters.Contribution();
    const events = await contract.queryFilter(filter);
    
    for (const event of events) {
      await this.analyzeContribution(event);
    }
  }
  
  async analyzeContribution(event) {
    const { contributor, amount } = event.args;
    
    // Check for unusual patterns
    if (amount.gt(ethers.utils.parseEther('100000'))) {
      await this.alertLargeContribution(contributor, amount);
    }
    
    // Check for rapid contributions
    const recentContributions = await this.getRecentContributions(contributor);
    if (recentContributions.length > 10) {
      await this.alertRapidContributions(contributor);
    }
  }
}