EY and the Polygon organizations update the source code of blockchain privacy-based protocol Nightfall

• Developers can use the Nightfall source code to create privacy-enabled transactions on the public Ethereum blockchain

LONDON, 18 January 2023 /PRNewswire/ — EY and the Polygon organizations have updated the public source code for Nightfall to enable the development of privacy-focused enterprise blockchain solutions. Nightfall is an Optimistic Zero-Knowledge (ZK) Roll-Up that helps enable private transactions on the public Ethereum blockchain. Using Nightfall, businesses can orchestrate private transactions efficiently on the Ethereum mainnet without compromising the transparency, immutability, and security that Ethereum provides.

Paul BrodyEY Global Blockchain Leader, says:

“This update marks the readiness of Nightfall to enable the development of enterprise solutions. With more than six months of test network operation, we consider this a ‘production beta’, ready to enable the client’s supply chain and business operations.”

EY first contributed Nightfall to the public domain in 2019 as a set of protocols to enable private transactions on the Ethereum blockchain. IN September 2021, EY teamed up with Polygon to create a beta version of Nightfall that can reduce network load and high transaction fees resulting from the increased use and wider adoption of Ethereum. EY Core Software and Service Offerings in the Global Blockchain Market – EY OpsChain and EY Blockchain Analyzer – use Nightfall, and both are delivered through EY Blockchain’s SaaS platform, Blockchain.ey.com.

This version of Nightfall introduces two important changes compared to previous versions: First, to prevent control by an organization or group, the code can be distributed on a completely decentralized basis. Second, to prevent anonymous use while maintaining an open and permissionless network model, users must have an enterprise-class X.509 identity certificate to deposit or withdraw. X.509 certificates are a widely adopted open standard for identification used on the Internet and are available through many different certificate authorities.

Nightfall will remain in the public domain to facilitate the adoption of privacy-focused enterprise solutions among companies looking to enter Ethereum and conduct meaningful business on the network.

Anthony MartinPolygon Co-founder responsible for Nightfall says:

“The move to update Nightfall in the public domain is an important milestone in scaling the Ethereum ecosystem and will open up new enterprise use cases in Web3.”

The source code for Nightfall (renamed Nightfall D3) and supporting tools are in the public domain and are available on Github at

About EY

EY exists to build a better working world, contribute to creating long-term value for customers, people and society and build trust in the capital markets.

Enabled by data and technology, diverse EY teams in over 150 countries deliver confidence through assurance and help clients grow, transform and operate.

Working across assurance, consulting, legal, strategy, tax and transactions, EY teams ask better questions to find new answers to the complex problems facing our world today.

EY refers to the global organisation, and may refer to one or more of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients. Information on how EY collects and uses personal data and a description of the rights individuals have under data protection legislation is available at ey.com/privacy. EY member firms do not practice law where prohibited by local law. For more information about our organization, please visit ey.com.

This news release is issued by EYGM Limited, a member of the global EY organization which also does not provide any services to clients.

Logo –

SOURCE EY