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This project is maintained by OpenZeppelin with the goal of providing a secure and reliable library of smart contract components for the ecosystem. We address security through risk management in various areas such as engineering and open source best practices, scoping and API design, multi-layered review processes, and incident response preparedness.
- openzeppelin-solidity - npm
The core development principles and strategies that...
- openzeppelin-solidity - npm
The core development principles and strategies that OpenZeppelin is based on include: security in depth, simple and modular code, clarity-driven naming conventions, comprehensive unit testing, pre-and-post-condition sanity checks, code consistency, and regular audits. The latest audit was done on October 2018 on version 2.0.0.
Check out OpenZeppelin Defender — a secure platform for automating and monitoring your operations. Overview Installation $ npm install @openzeppelin/contracts OpenZeppelin Contracts features a stable API, which means that your contracts won't break unexpectedly when upgrading to a newer minor version.
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A library for secure smart contract development. Build on a solid foundation of community-vetted code.
•Implementations of standards like ERC20 and ERC721.
•Flexible role-based permissioning scheme.
•Reusable Solidity components to build custom contracts and complex decentralized systems.
🧙 Not sure how to get started? Check out Contracts Wizard — an interactive smart contract generator.
🏗️ Want to scale your decentralized application? Check out OpenZeppelin Defender — a mission-critical developer security platform to code, audit, deploy, monitor, and operate with confidence.
The guides in the documentation site will teach about different concepts, and how to use the related contracts that OpenZeppelin Contracts provides:
•Access Control: decide who can perform each of the actions on your system.
•Tokens: create tradeable assets or collectives, and distribute them via Crowdsales.
•Utilities: generic useful tools including non-overflowing math, signature verification, and trustless paying systems.
The full API is also thoroughly documented, and serves as a great reference when developing your smart contract application. You can also ask for help or follow Contracts's development in the community forum.
Finally, you may want to take a look at the guides on our blog, which cover several common use cases and good practices. The following articles provide great background reading, though please note that some of the referenced tools have changed, as the tooling in the ecosystem continues to rapidly evolve.
This project is maintained by OpenZeppelin with the goal of providing a secure and reliable library of smart contract components for the ecosystem. We address security through risk management in various areas such as engineering and open source best practices, scoping and API design, multi-layered review processes, and incident response preparedness.
The OpenZeppelin Contracts Security Center contains more details about the secure development process.
The security policy is detailed in SECURITY.md as well, and specifies how you can report security vulnerabilities, which versions will receive security patches, and how to stay informed about them. We run a bug bounty program on Immunefi to reward the responsible disclosure of vulnerabilities.
The engineering guidelines we follow to promote project quality can be found in GUIDELINES.md.
Past audits can be found in audits/.
Smart contracts are a nascent technology and carry a high level of technical risk and uncertainty. Although OpenZeppelin is well known for its security audits, using OpenZeppelin Contracts is not a substitute for a security audit.
OpenZeppelin Contracts exists thanks to its contributors. There are many ways you can participate and help build high quality software. Check out the contribution guide!
OpenZeppelin Contracts is released under the MIT License.
Your use of this Project is governed by the terms found at www.openzeppelin.com/tos (the "Terms").
Getting Started. This tutorial will showcase usage of the OpenZeppelin CLI, giving you a taste of its capabilities and serving as a starting point for your own projects. We will cover: * Create a new OpenZeppelin project with a smart contract * Deploying our contract to a local development network * Interacting with our contract from the ...
The guides in the sidebar will teach about different concepts, and how to use the related contracts that OpenZeppelin Contracts provides: Access Control: decide who can perform each of the actions on your system. Tokens: create tradeable assets or collectives, and distribute them via Crowdsales. Gas Station Network: let your users interact with ...
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Learn More. The guides in the sidebar will teach about different concepts, and how to use the related contracts that OpenZeppelin Contracts provides: Access Control: decide who can perform each of the actions on your system. Tokens: create tradable assets or collectibles, like the well known ERC20 and ERC721 standards.
