Zcash devs plan per-swap keys to shield ZEC from quantum attacks
The Zakura team wants each NEAR Intents swap to use its own key, so a refund address on NEAR's public chain can't reveal a user's wider payment history.
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Key takeaways
- The Zakura team is behind the proposed fix for ZEC swaps through NEAR Intents.
- Every swap would get its own key instead of reusing one.
- The worry is a refund address left on NEAR's public chain.
- The goal is to stop that address exposing a user's broader payment history, including to future quantum computers.
Zcash developers are trying to stop swaps from leaking private history. The team behind Zakura plans to give every swap made through NEAR Intents its own key, so a single public trace can't be used to unravel someone's wider payments.
The problem: a refund address on a public chain
A swap through NEAR Intents can involve a refund address, and that address can land on NEAR's public chain. Public means permanent, and readable by anyone. Right now the risk is small. The worry is a future quantum computer, which could use an address like that to expose far more than one trade.
The fix: one key per swap
The idea is simple. Swaps no longer share a key; each one gets a fresh key. If a refund address is exposed, it points to that one swap and nothing else. It can't be traced back to a user's broader payment history.
Technical detail is thin. We don't have a timeline. We don't know how the change will ship, or how it'll affect users day to day.
Why it matters
A privacy coin is only as private as its weakest connection point. Shielded ZEC can be solid, but swap through a bridge or intent system that touches a public chain and you leave a trail. Quantum risk makes that trail more dangerous, because data that's public today can be analyzed later. If you hold or swap ZEC for privacy, watch this one. The open question: will other privacy-focused projects adopt the same approach for cross-chain swaps?
Source: CoinDesk
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Mia digs into DeFi and on-chain data, translating protocol mechanics into plain English for everyday readers.
