First Flight #46: Secret Vault on Aptos

Contest Details

Starts: August 14, 2025 Noon UTC

Ends: August 06, 2025 Noon UTC

Stats

• nSLOC: 30
• Complexity Score: 15

About

This will be the first in a series of First Flights featuring move on Aptos!

This challenge teaches several important security concepts:

• How Move handles ownership
• Understanding how Move handles account authentication differently from Solidity
• Global storage vs contract storage
• Resource safety implications
• Event emission patterns

SecretVault is a Move smart contract application for storing a secret on the Aptos blockchain. Only the owner should be able to store a secret and then retrieve it later. Others should not be able to access the secret.

Roles

Owner - Only the owner may set and retrieve their secret

Getting Started

Requirements

• git
  • You'll know you did it right if you can run git --version and you see a response like git version x.x.x
• Aptos CLI
  • You'll know you did it right if you can run aptos --version and you see a response like aptos 3.x.x
• Move

Quickstart

git clone https://github.com/CodeHawks-Contests/2025-07-secret-vault.git
cd 2025-07-secret-vault
aptos move compile --dev

Usage

Deploy (local)

1. Start a local Aptos node

aptos node run-local-testnet --with-faucet

2. Initialize your account

aptos init --profile local --network local

3. Deploy

aptos move publish --profile local

Testing

aptos move test

Scope

• In Scope:

./sources/
└── secret_vault.move
./Move.toml

Compatibilities

• Move Version: Latest
• Chain(s) to deploy contract to: Aptos Mainnet/Testnet
• Aptos CLI Version: 3.x.x

Known Issues

No known issues reported.