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mertcobn/README.md

Smart contract security researcher and Solidity developer focused on EVM chains. Currently building a Foundry-based PoC portfolio covering common smart contract vulnerabilities. Working toward DeFi development. Also building dApps.

Solidity Foundry Ethereum OpenZeppelin Chainlink

JavaScript Ethers.js GitHub

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  1. reentrancy-poc reentrancy-poc Public

    Smart contract security: reentrancy vulnerability PoC, exploit, and two independent mitigations (CEI + OpenZeppelin ReentrancyGuardTransient), tested in Foundry

    Solidity

  2. access-control-vulnerabilities access-control-vulnerabilities Public

    Smart contract security: access control vulnerability PoCs, missing owner check, tx.origin phishing, missing role modifier, and unprotected initializer with mitigations and Foundry tests.

    Solidity

  3. unchecked-overflow-poc unchecked-overflow-poc Public

    Foundry PoC of a BEC-style integer overflow exploit via misuse of `unchecked` in Solidity 0.8+, with mitigation

    Solidity

  4. crypto-donation-dapp crypto-donation-dapp Public

    A decentralized donation system with an embeddable JS widget.

    Solidity 1

  5. solidity-learning-journey solidity-learning-journey Public

    This is my learning sandbox — a place to practice, experiment, and demonstrate foundational knowledge outside of my main portfolio projects.

    Solidity

  6. basic-hash-hiding basic-hash-hiding Public

    This project is a simple Python application that demonstrates the hiding property of cryptographic hash functions.

    Python