Polygon has announced the completion of a privacy feature upgrade for its Polygon CDK, according to Foresight News. The upgrade introduces a Validium configuration based on the Succinct SP1 Hypercube zero-knowledge proof system. This allows institutions to retain raw transaction data within their own infrastructure while submitting encrypted commitments and zero-knowledge proofs to Ethereum, achieving 'private data, public verification.' The upgrade also maintains liquidity interoperability with Ethereum and other chains through AggLayer.
The upgrade offers five combinable privacy levels, including permissioned access, confidential chains (Validium), trusted execution environments (TEE), fully homomorphic encryption tokens (FHE), and client-side zero-knowledge private transactions. It supports integration with enterprise identity systems such as Okta and Azure AD. The enhancements are primarily aimed at traditional financial institutions like banks, payment companies, and asset management firms planning to transition to blockchain technology.