Johnny Time

@JohnnyTime

Free Web3, Blockchains, and Smart Contracts Education!

Joined October 2022

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JohnnyTime - Free Web3 Educationjohnnytime.hashnode.dev3 posts

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JTJohnny Timejohnnytime.hashnode.devApr 7, 2023 · 6 min read

DelegateCall in Solidity — With Examples

DelegateCall Solidity DelegateCall is a unique feature in Solidity, which allows contract A to execute code in contract B with contract A storage, and the preserving the msg (msg.sender, msg.value, etc..). Today, we will discuss how DelegateCall work...

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JTJohnny Timejohnnytime.hashnode.devDec 2, 2022 · 5 min read

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 2 Solution “Naive Receiver”

Welcome to the second Damn Vulnerable DeFI challenge walkthrough! In today’s article, I will show you how to hack the naive receiver smart contract step by step. The Damn Vulnerable DeFi teaches offensive security techniques for DeFi smart contracts....

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JTJohnny Timejohnnytime.hashnode.devOct 19, 2022 · 4 min read

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 1 (“Unstoppable”) Solution

Welcome to the Damn Vulnerable DeFI challenge walkthrough! Damn Vulnerable DeFi teaches offensive security of DeFi smart contracts. Your skills will be developed through numerous challenges to help you become a bug hunter or security auditor. Before ...

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Johnny Time

About

Available for

Johnny Time's blogs

Recently published

DelegateCall in Solidity — With Examples

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 2 Solution “Naive Receiver”

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 1 (“Unstoppable”) Solution

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Johnny Time

About

Available for

Johnny Time's blogs

Recently published

DelegateCall in Solidity — With Examples

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 2 Solution “Naive Receiver”

Damn Vulnerable DeFI 2022 Walkthrough — Challenge 1 (“Unstoppable”) Solution