Reference

CTF and Hands-on Learning

• Solidity by Example (opens new window)
• Ethernaut (opens new window)
• Damn Vulnerable DeFi (opens new window)
• A Summary Of 100+ CTF Blockchain Challenges Using Solidity (opens new window)
• Ciphershastra (opens new window)
• EhterHack (opens new window)
• Capture The Ether (opens new window)
• Blocksec CTFs (opens new window)

Online Courses

• CS251: Cryptocurrencies, blockchains, and smart contracts (opens new window)
• Decentralized Finance MOOC (opens new window)
• CIS7000: Web3.0 Security (opens new window)

Books

• Bitcoin and Cryptocurrency Technologies (opens new window)
• Mastering Ethereum (opens new window)

Useful Links

• EVM Op Codes (opens new window)
• Yellow Paper (opens new window)
• Solidity (opens new window)
• Geth (opens new window)
• Ethereum Tutorials (opens new window)