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QEDIT

QEDIT is an applied cryptography firm providing security audits, cryptographic protocol design, formal verification, and research. It serves organizations building privacy-preserving and blockchain systems that secure real value.
Tel-Aviv - Yafo, Israel

Zcash Shielded Assets (ZSAs)


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Description

Zcash Shielded Assets (ZSAs), or OrchardZSA, extend Zcash’s Orchard shielded protocol to support user-defined assets with privacy for sender, receiver, amount, and asset type. The protocol defines issuance keys and asset identifiers, custom-asset notes and commitments, a version 6 transaction format, consensus rules for supply tracking and finalization, and an updated fee model. It is specified through ZIP 226 and ZIP 227, has been independently audited, and is being upstreamed into Zcash’s consensus-critical crates.

Category: Uncategorized

ZkInterface


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Description

zkInterface is an open, message-based interoperability standard designed and built by QEDIT for zero-knowledge proof systems. It defines a framework-agnostic representation of R1CS constraint systems and witnesses using FlatBuffers messages, allowing compliant circuit frontends and proving backends to exchange data. It also supports streaming, reusable gadgets, and separate instance and witness reduction steps, and was contributed to the ZKProof standardization effort as an interoperability reference.

Category: Cross-chain Infrastructure