https://github.com/lorransutter/intro-bc-security-practices

Labs for BCDV1002 - Intro to Blockchain - Security Practices
https://github.com/lorransutter/intro-bc-security-practices

blockchain cryptography ethersjs security security-practices smart-contracts solidity

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Labs for BCDV1002 - Intro to Blockchain - Security Practices

• Host: GitHub
• URL: https://github.com/lorransutter/intro-bc-security-practices
• Owner: LorranSutter
• Created: 2020-03-30T22:02:22.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2023-05-10T02:53:03.000Z (almost 2 years ago)
• Last Synced: 2025-01-01T05:30:03.525Z (4 months ago)
• Topics: blockchain, cryptography, ethersjs, security, security-practices, smart-contracts, solidity
• Language: JavaScript
• Homepage:
• Size: 32.2 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# Intro to Blockchain - Security Practices

Labs for the course BCDV1002 - Introduction to Blockchain - Security Practices from [Blockchain Development](https://www.georgebrown.ca/programs/blockchain-development-program-t175/) program from [George Brown College](https://www.georgebrown.ca)

## :pencil: Course outline

This course covers a set of security best practices and possible flaws in developing smart contracts.

- ### Lesson 01 - Cryptographic Primitives

    - Randomness, hash functions and signatures.

    - Learn how to create a valid Ethereum address.

- ### Lesson 02 - Blockchain Architecture

    - Transactions, blocks and nodes, interfaces

    - Simulate an Ethereum transaction with [ganache-cli](https://github.com/trufflesuite/ganache-cli) and [metamask](https://metamask.io/).

- ### Lesson 03 - Solidity Programming

    - Structure, programming, data-structures

    - Security practices for smart contracts using [remix](https://remix.ethereum.org/).

- ### Lesson 04 - Smart Contract Security

    - Threat models, contract interactions, on-chain randomness, re-entrancy

    - Perform a hack exploring smart contracts flaws.

- ### Lesson 05 - Full Stack Security

    - Input handling, on-chain/off-chain

    - Modify a smart contract and an off-chain program to make them secure preventing replay attacks and cross-contract spends.

## :computer: Technologies

- [Ethers.js](https://docs.ethers.io/) - interact with smart contracts

- [Ethereumjs-util](https://www.npmjs.com/package/ethereumjs-util) - utility functions for Ethereum

- [Ganache-CLI](https://github.com/trufflesuite/ganache-cli) - blockchain emulator

- [Metamask](https://metamask.io/) - crypto wallet

- [Remix](https://remix.ethereum.org/) - suite of tools for smart contracts

## :cookie: Credits

- [Doug Hoyte](https://hoytech.github.io/blockchain-security/) - course website for BCDV1002