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Zero Knowledge

Episode 95: zkVM with Oleg Andreev

Sep 18, 2019
51:01
Snipd AI
Guest Oleg Andreev, protocol architect from Stellar, discusses zkVM, a zero-knowledge virtual machine. They touch on the history of Stellar, Chain, and zkVM. They compare zkVM with ZCash and ZEXE. They also discuss the capabilities of TXVM and ZKVM, the concept of ZKVM and its positioning, contrasting Snarks and bulletproofs, and using bulletproofs in transaction verification and scalability in zero-knowledge systems.
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Podcast summary created with Snipd AI

Quick takeaways

  • ZKVM is a protocol that combines the best of Bitcoin and Ethereum, protecting funds while keeping the logic private.
  • ZKVM prioritizes protecting privacy without requiring a trusted setup, using high-speed cryptography and efficient aggregation of transactions for scalability.

Deep dives

ZKVM: A Protocol Architect and Confidentiality Features

ZKVM is a protocol that combines the best of Bitcoin and Ethereum. It allows for the creation of custom contracts that protect funds while keeping the logic private. The protocol is designed for financial contracts, with blockchain acting as a court. ZKVM encrypts the data in transactions, such as asset types, quantities, and contract parameters, while exposing the minimal required logic to satisfy the contract predicates. This ensures confidentiality and privacy without sacrificing scalability. The protocol uses bulletproofs, a non-interactive zero-knowledge proof system, for compact proofs and short verification time. The cryptographic stack, including the curve to 5519 Dalek and the Restretto prime order group, is implemented in Rust for efficient parallel computation. ZKVM is an experimental design separate from Stellar, but it is open source and can be potentially implemented in other chains.

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