Zcash Proposes One-Time Keys to Limit Quantum Privacy Risks

| decrypt.co
Zcash developer Zakura has proposed giving every shielded address used in a NEAR Intents swap a separate incoming viewing key. The proposal aims to limit the privacy risk from a future quantum computer: if one published refund address were compromised, an attacker could see payment details linked to that address, but not the account’s full history. Zcash currently uses one incoming viewing key across an account’s addresses. No quantum computer capable of breaking these protections exists today. The change would not affect spending keys or require a Zcash network upgrade. The proposal remains under review. Wallets using Zakura’s open-source software, including Vizor, may add support in the coming weeks, while hardware-wallet support would require later firmware updates. Zakura also says private information retrieval could let wallets check for NEAR payouts without revealing which addresses they query. The proposal is part of broader Zcash quantum-resistance efforts. Zcash Open Development Lab CEO Josh Swihart said in May that the project aims to achieve full post-quantum status within 12 to 18 months. ZEC was reported at $1,165, up 3.6% on the day, but this wallet-level privacy proposal does not itself change the Zcash network or provide a direct market catalyst.
Neutral
The proposal could strengthen Zcash’s privacy protections for NEAR Intents swaps and support confidence in the project’s longer-term quantum-resistance plans. That may be constructive for ZEC’s reputation, but the change is still under review, applies at the wallet level and does not require a network upgrade. It also does not address an immediate threat, as no capable quantum computer currently exists. In the short term, the proposal is unlikely to materially affect ZEC trading or market stability; the reported daily price rise cannot be attributed to this development alone. Over the longer term, successful wallet adoption and progress toward broader post-quantum security could support user confidence and differentiation. However, traders are more likely to wait for implementation and wider technical progress before treating it as a meaningful price catalyst.