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Prajwal More
Prajwal More

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Jul 5, 2022

Understanding and exploiting reentrancy while safeMint()-ing NFTs.

safeMint() function expects that the recipient contract should implement onERC721Received which is basically a sign of the contract supporting ERC721 so that tokens won’t get stuck once someone sends it to that address. And this is how it works… In ERC721 OZ implementation whenever a token is transferred to a contract via safeTransferFrom or minted by…

Reentrancy

3 min read

Reentrancy

3 min read


Published in QuillHash

·May 5, 2022

Tracing smart contract transaction calls, and events locally with hardhat-tracer.

Have you ever noticed a need of tracing smart contract transactions while testing or learning smart contract protocols or forks? hardhat-tracer can help you. Find this tool here: https://github.com/zemse/hardhat-tracer From the Readme file, it's pretty clear how to use the tool. …

Smart Contracts

5 min read

Tracing smart contract transaction calls, and events locally with hardhat-tracer | QuillAudits
Tracing smart contract transaction calls, and events locally with hardhat-tracer | QuillAudits
Smart Contracts

5 min read


Jun 27, 2021

Hacking vulnerable smart contract: CTF by ciphershastra.com

Lets take a look of how to exploit vulnerable smart contract. — Note: Code that we are using in this article is “Damn Vulnerable” and not audited, not to use in production. Details about ctf: Minion is CTF challenge posted on ciphershastra.com CTF challenge link: https://ciphershastra.com/minion.html Tools/Techs. we are using: Remix online ide, metamask wallet, solidity programming. Without wasting time lets take a look into Minion.sol file:

Smart Contract Security

8 min read

Hacking vulnerable smart contract: CTF by ciphershastra.com
Hacking vulnerable smart contract: CTF by ciphershastra.com
Smart Contract Security

8 min read

Prajwal More

Prajwal More

8 Followers

Smart contract security and Blockchain ⛓

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