Architecture & Sécurité
Des Smart Contracts

pragma solidity ^0.8.20; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "./ComplianceModule.sol"; /// @title Digital Bond Token with Embedded Compliance contract DigitalBond is ERC20, AccessControl, Pausable { // State Variables bytes32 public constant ISSUER_ROLE = keccak256("ISSUER_ROLE"); bytes32 public constant AGENT_ROLE = keccak256("AGENT_ROLE"); ICompliance public complianceModule; mapping(address => bool) public isBlacklisted; constructor(string memory name, string memory symbol, address complianceAddress) ERC20(name, symbol) { _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); complianceModule = ICompliance(complianceAddress); } /* * @notice Regulatory seizure (Court order recovery) * @dev Bypasses approval check, only for Agent Role */ function forceTransfer(address from, address to, uint256 amount) public onlyRole(AGENT_ROLE) { _transfer(from, to, amount); emit RecoveryExecuted(from, to, amount); } function setBlacklist(address account, bool status) public onlyRole(AGENT_ROLE) { isBlacklisted[account] = status; } // Override transfer to enforce ongoing compliance (Secondary Market) function _update(address from, address to, uint256 amount) internal override whenNotPaused { require(!isBlacklisted[from] && !isBlacklisted[to], "Address is sanctioned"); if (from != address(0) && to != address(0)) { require(complianceModule.canTransfer(from, to, amount), "Transfer restricted"); } super._update(from, to, amount); } }