Zcash developers plan quantum-safe transparent payments

This approach aims to protect against AI-driven mathematical advancements that could break current encryption methods, as warned by Ethereum Foundation researcher Justin Drake. Drake cautioned that such vulnerabilities could emerge sooner than anticipated, potentially within months or a couple of years, according to Ethereum co-founder Vitalik Buterin.

Zakura's strategy involves two key components. Firstly, wallets will rotate to a new address after each transaction to keep public keys hidden. Secondly, they will implement private information retrieval (PIR), a cryptographic technique that allows wallets to fetch data without revealing which specific records are being requested. This PIR feature is set to be integrated into the Vizor wallet this week, allowing users to test "private queries."

While Zcash's shielded transactions already offer a high degree of privacy, this new plan specifically addresses the security of its transparent payment system, which functions similarly to Bitcoin's. The company stated on X that it is actively solving linkability issues for transparent addresses, contrasting with ongoing debates about the viability of rotating transparent addresses in the broader crypto space.

However, the implementation of these post-quantum signature opcodes across the Zcash network has not yet been assigned a confirmed activation date. The development comes as Zcash sees increased institutional interest, including proposals for a U.S. ETF and Europe's first Zcash ETP, and follows a recent upgrade to improve private payment speeds.