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 domain 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) digest that helps enable private transactions on the public Ethereum blockchain. By using Nightfall, companies can organize private transactions efficiently on Ethereum mainnet without compromising the transparency, immutability and security of the data as Ethereum gives.

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 Ethereum blockchain. IN September 2021EY teamed up with Polygon to create a beta version of Nightfall that can reduce network congestion and high transaction fees resulting from the increased use and wider use 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 Ethereum ecosystem and will open up new use cases for companies in Web3.”

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

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SOURCE EY