Zakura's engineering team, led by Adam Tucker, has built a fix for quantum privacy risks in Zcash swaps through NEAR Intents, where posted shielded addresses could let a quantum attacker running Shor's algorithm recover one incoming viewing key (ivk) linking all account payments. The solution derives a one-time ivk per swap, leaving spending keys untouched so funds stay in one account, avoiding hardware wallet limits (Keystone signs only account 0; Ledger needs one approval per account). Recovery uses PIR-based lookups against a database of NEAR bridge payouts, indexed via the all-zero outgoing viewing key, with Bloom-style filters.

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Leviathan +21 h later

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Thread · 1 event
  1. First reportA new technique enables post-quantum unlinkable swaps using Zcash2 acc.
  2. Leviathan published this article

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Cited posts

  • @ebfull Sean BoweFirst reportOn X ↗

    Make your NEAR swaps post-quantum unlinkable with Zcash's current protocol. Uses a new trick that adds a kind of "diversification" but instead of for addresses, it's for viewing keys! Using the PIR tech that @adamleetucker17 et al. have been building at @ValarGroup. https://t.co/uOeTmkbZ49

  • @ZakuraZcash ZakuraOn X ↗

    Post-quantum unlinkable swaps for Zcash, no network upgrades required.https://t.co/hzBkdo1AHJ

TradersTrader calls tracked by Elfa · not advice

Positioning · ZEC

Open1,052 open positions · 939 long · 113 short

Tracked accounts lean long about 97% of the time, so a long-heavy book is normal, not a signal. As of 19 Oct 02:12 UTC.

Reaction since the first post

Since 18 Oct 05:53 UTC14 calls opened · 13 long · 1 short

Callers with a scored record

@Justpit5 short · entry $1,125alpha −0.013 · 58% hit rate · 24 scored

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Whole crypto market, not this story

Crowding31st percentile · vs last 28 days, 50 typical
Pulse 24h11/100 · unusualness of new calls, 0–100, 50 typical, higher means more long than usual
Book97.3% long · 11,183 accounts

As of 19 Oct 02:50 UTC.

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