Zcash developers plan a fix to keep ZEC swaps private from future quantum computers
Published Updated 1 new report since it was first published
Zcash developer Zakura has proposed a wallet change for NEAR Intents swaps that would give each ZEC swap its own viewing key. The design is meant to keep a refund address on NEAR’s public chain from revealing a user’s wider transaction history if future quantum computers can inspect old data.
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Zcash’s shielded transactions rely on viewing keys, which let a holder inspect activity without making it public. NEAR Intents is the swap path in this story, and the new design targets the point where a refund address can sit on a public chain. The proposal matters now because Zakura is trying to harden that swap flow before a future quantum threat can make old address links easier to read.
For people using ZEC through NEAR Intents, the practical change would be more separation between swaps, so one address or refund path would not map as easily to a wider history. Builders working on wallets and swap tooling would need to handle per-swap keys instead of treating one view into many transfers as enough. That shifts privacy protection closer to the user flow itself rather than leaving it bundled into one long-lived key.
The trade-off is between convenience and narrower exposure: more keys per swap can make the system harder to manage, but it also limits how much a single disclosure can reveal. Zcash has long been built around selective transparency, while NEAR Intents routes activity through infrastructure that is not private by default in the same way as shielded ZEC transfers. This proposal sits at that boundary and asks how much privacy can survive when crypto activity touches a public chain.
Still unknown is whether Zakura’s design will move from review into shipping code and whether other wallet or swap providers will adopt the same approach. The material does not say when implementation would start or how users would be migrated. What happens next depends on whether the proposal is accepted and turned into deployed software.
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