Zcash Resurgence, Privacy, and Quantum w/ Zcash cofounder Ian Miers

Ian Miers, co-founder of Zcash, discusses his journey in cryptography, particularly focusing on zero-knowledge proofs and their application in privacy technology. He highlights his early work on Bitcoin's privacy issues, which led to the development of Zcash as a pioneering application of zero-knowledge proofs. Zcash introduced significant innovations, such as SNARKs and nullifiers, enhancing privacy by allowing users to prove account states without exposing sensitive data. Miers emphasizes the necessity of privacy in cryptocurrency, critiquing the Bitcoin community's acceptance of traceability, which he believes contradicts the cypherpunk ethos.

The conversation touches on the evolving understanding of cryptocurrency use cases, noting a shift from speculation to real-world applications. Miers stresses the importance of operational security and the risks individuals face, such as government scrutiny. He concludes that confidence in a cryptocurrency's reliability is essential for its practical use, asserting that non-private currencies cannot effectively serve their purpose in real-world scenarios.

Zcash's unexpected leadership in privacy-focused cryptocurrencies is highlighted, with discussions about its recent developments, including a working wallet and swaps feature. Zcash is described as a private version of Bitcoin, with future developments anticipated in private stablecoins and tokenizing real-world assets. The conversation also introduces PAYDA verification key hash, aimed at enhancing privacy in smart contracts, and discusses the need for encryption due to banks' concerns about public blockchains.

Miers addresses government corruption and currency debasement, using examples like Argentina to illustrate the need for alternative value storage. Cryptocurrency is presented as a solution for individuals lacking access to traditional banking. The regulatory environment appears more favorable towards cryptocurrency, though privacy regulations remain ambiguous. Miers expresses optimism about privacy regulation under the current administration, noting discussions within the Department of Justice and Treasury that recognize the legitimacy of privacy in cryptocurrency.

The risks associated with operating in the cryptocurrency space are discussed, including potential delisting from exchanges and the impact of regulatory compliance. Miers emphasizes the need for tools that manage privacy without creating data vulnerabilities and predicts a marketplace for IDs across blockchains to test effective privacy and compliance techniques. He highlights the importance of scaling Zcash using ZK Snarks and introduces the concept of a "blockchain trash compactor" for data aggregation.

The conversation shifts to the current state of Zcash, with Miers identifying as a cryptographer focused on technical aspects. He finds the recent interest in swaps within Zcash surprising and explains the mechanics of swaps, including the role of matchmakers in guaranteeing transactions. Two potential paths for Zcash are identified: developing ZK technology for programmable assets and identity or remaining a scalable, encrypted version of Bitcoin.

Concerns are raised about Zcash, particularly regarding the impact of fear, uncertainty, and doubt (FUD) on its desirability as an asset. Miers emphasizes the need for sustainable funding and expresses worries about internal conflicts within Zcash governance. The discussion also touches on the implications of quantum computing, with Miers advocating for the implementation of post-quantum cryptography to maintain privacy in a future where quantum threats are a concern.

Miers concludes by emphasizing the community's role in Zcash's evolution, highlighting collaboration and feedback as essential components for growth. Engaging with users and developers will help Zcash adapt to changing market dynamics and technological landscapes, ensuring its relevance in the cryptocurrency ecosystem.