Solidity & Huff CTFs

Sources

• openzeppelin-ethernaut: The Ethernaut
• capture-the-ether: Capture the Ether
• rareskills: RareSkills/huff-puzzles
• huff-challenges: Huff Discord

Foundry Commands

• Run tests in sets: forge test "test/<directory>/*.t.sol"

• Specify which address to use: cast wallet address --mnemonic <mnemonic-path> --mnemonic-index <index>

• Remember to --broadcast to send out txs when running deployment script with forge script

• Send ether on calls: --value <value>, e.g. --value 0.01ether

Forking with Anvil

• anvil --fork-url <rpc-url>

• If running tests in forked env, remember to --rpc-url 127.0.0.1:8545 (Anvil's default endpoint)

---

Tips

• source .env to import secrets in command line

Specs

• For test/capture-the-ether/FuzzingIdentity.t.sol, append --gas-limit 1000000000000 to forge test and don't modify the file at all s.t. salt generation can be guaranteed