Zcash developers plan a fix to keep ZEC swaps private from future quantum computers

LISTINGZcash developers plan a fix tokeep ZEC swaps private fromfuture quantum computers44IMPORTANCEACTIVE3NEWS MEDIA3PIECESOct 19, 2026 06:32blockboard.net

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.

What this rests on

Claim by claim, with its source
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Zakura proposed giving each ZEC swap through NEAR Intents a separate viewing key so one refund address on NEAR’s public chain would not expose a user’s broader payment history.
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The proposal applies to shielded addresses posted during NEAR Intents swaps and is intended to reduce what a future quantum computer could learn from a single address.
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Zakura’s engineering page lists the work as in review, and the design has not shipped.

What it means

The background, what changes for users, the wider reading and what is still open

Each paragraph links inside to the piece it builds on.

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.

Market reaction

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The move was larger before the first headline than after. That is an observation, not an explanation: the market also moves on things nobody publishes.

How the story was built

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+1 h 7 m
Oct 19 06:30
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Brings into the story: NEAR
+3 h 52 m
Oct 19 09:15
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