Zakura proposes assigning NEAR an independent viewing key to each ZEC Intents swap
BIBIBI
AT A GLANCE
Zakura proposes using an independent viewing key for each ZEC cross-chain swap to reduce the privacy-linkage risk posed by future quantum computing.
Article
Zakura proposes assigning an independent viewing key to each ZEC cross-chain swap to guard against future quantum computers cracking them
BlockBeats report,October 19, the Zakura team, a new Zcash software project, published an engineering article proposing that each NEAR swap completed through Intents be assigned an independent viewing key to counter privacy threats from future quantum computers.
When users swap ZEC for ZEC via USDC,NEAR Intents publishes one of the user's Zcash addresses on the NEAR public blockchain for refunds. This address carries a public key generated from a viewing key; future quantum computers may be able to use Shor's algorithm to derive the key, linking all incoming-payment records and memos for the account. Zakura's proposal gives each swap its own viewing key, while the spending key remains in the user's main account, and locates refunds through private information retrieval (PIR).
The team said wallets such as Vizor, which are based on its open-source library, could support this within weeks, ahead of the January post-quantum payment target set by Zcash developers.
Original link https://m.theblockbeats.info/flash/372511
Key points
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October 19, the Zakura team, a new Zcash software project, published an engineering article.
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The Zakura team proposes assigning an independent viewing key to every NEAR swap completed through ZEC Intents.
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The report states that when users swap ZEC for USDC via NEAR, Intents publishes one of the user's Zcash refund addresses on the NEAR public blockchain.
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This address carries a public key generated from a viewing key.
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Zakura's proposal gives each swap its own viewing key, while the spending key remains in the user's main account, and locates refunds through private information retrieval (PIR).
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The team said wallets such as Vizor, which are based on its open-source library, could support this proposal within weeks.
AI-assisted interpretation
The following is analysis, separate from reported facts. Verify important claims independently.
Viewing keys are used to view related transaction information. The existing swap process discloses a refund address carrying a viewing-key public key; Zakura is concerned that future quantum computers may use this to derive the key and link additional records. It therefore recommends using a different viewing key for each swap without moving the spending key in the user's main account.
Why it matters to readers
If implemented as described, even if the viewing key used for a particular swap is cracked in the future, the scope of private information that can be linked may be reduced, rather than directly linking all incoming-payment records and memos for the account.
This concerns long-term privacy protection when using ZEC cross-chain swaps. For ordinary users, the key issue is whether wallets actually support this proposal, rather than treating an engineering proposal as a feature that has already gone live.
Risks and unknowns
This proposal is currently a team proposal; the original article does not confirm that it has been deployed.
Whether wallets can provide support within weeks is the team's statement and has not been confirmed as implemented in the original article.
Whether, and when, future quantum computers can carry out the described cracking using Shor's algorithm cannot be confirmed from the original article.
The original article provides no security audit, compatibility testing, or ecosystem integration results for the proposal.
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“January The “post-quantum payment target” does not specify a particular year.
Related concepts
Viewing key
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