Zcash developers set January target for quantum-resistant payments after ‘bunker mode’ scare
Reported by CoinDesk · AI-assisted summary by ChikoCorp AI News Desk
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Summary
Zcash developers plan to introduce quantum-resistant, hash-based signature support by January, focusing initially on transparent transactions that make up about 70% of ZEC. This upgrade aims to protect public keys from potential quantum computer attacks that could enable forgery of wallet approvals. Alongside, Zakura, the software running the Zcash network, has created a private lookup tool allowing wallets to check balances without revealing address links to servers, with an experimental version available in the Vizor wallet.
Why it matters
The planned upgrade intends to safeguard Zcash users against the future threat of quantum attacks that might reverse engineer public keys to forge spending approvals. This development comes amid growing concerns, highlighted by Ethereum researcher Justin Drake, about AI-assisted attacks breaking current cryptographic protections in months rather than years. The source notes this as a timely move to enhance security in light of emerging risks, though it does not elaborate on broader market or policy impacts.
Key context
Zcash supports two payment types: shielded payments, which keep transaction details private, and transparent payments, where addresses and amounts are publicly visible. The quantum-resistant upgrade targets the transparent side primarily. Spending in Zcash reveals public keys, which a quantum breakthrough could potentially exploit. Zcash mitigates some risks by encouraging fresh addresses for leftover funds and has developed a private information retrieval lookup tool to protect user privacy during balance checks.
Key numbers and entities
Zcash (ZEC), transparent transactions make up approximately 11.96 million of 16.98 million issued coins (about 70%). Planned quantum-resistant signature introduction is targeted for January 2027, with no confirmed activation date yet. Ethereum researcher Justin Drake issued warnings about AI-assisted cryptographic attacks, with Ethereum targeting quantum resistance by December 2029. The Vizor wallet currently offers an experimental private balance query feature.
What remains unclear
The exact network activation date for the quantum-resistant upgrade is not confirmed. Details on how and when shielded transactions will receive quantum safeguards are not provided. The effectiveness and adoption timeline of the private lookup tool remain uncertain. The source does not specify the full scope of how the upgrade will integrate with existing protocols or the potential user impact during the transition.