web3: Zcash啟動Ironwood升級封鎖潛在偽幣流通
Decrypt
07-29 02:43
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Zcash 啟動 Ironwood 升級,停用 Orchard 隱私池並封鎖潛在偽造 ZEC 流通,同時引入抗量子交易記錄。
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Zcash 已正式啟用 Ironwood 網路升級。這項調整停用了先前的 Orchard 隱私池,並開始把用戶資金遷往新的隱私池,目標是把潛在偽造的 ZEC 永久隔離在舊池內,避免其進入市場流通。

舊隱私池停止流出

這次升級源自於 5 月曝光的關鍵漏洞。安全研究員 Taylor Hornby 在使用 Claude Opus 4.8 時發現,Orchard 中存在一個已持續約四年的缺陷,理論上可能被用於偽造 ZEC。開發團隊雖在 6 月發布緊急補丁,但由於隱私交易預設隱藏細節,外界無法確認漏洞是否曾被利用。

Ironwood 上線後,持有約 370 萬枚 ZEC 的 Orchard 被正式退役。新機制加入了類似「閘門」的記帳設計,舊池流出的 ZEC 數量不能超過可驗證的歷史存入量。這樣一來,即便過去存在偽造幣,也無法從舊池流出並進入市場。

  • Orchard 舊池規模約 370 萬枚 ZEC
  • 以文中價格估算,價值約 17 億美元
  • 舊池流出將受可驗證存入量限制

漏洞披露後價格先跌後穩

漏洞消息公開後,市場一度質疑 Zcash 的供應是否可信。報道提到,ZEC 當時曾下跌 38%。隨著 Ironwood 修復方案提出,市場情緒隨後迴穩,Zcash 在 6 月初一度收復約 25 億美元市值。

截至報告發佈時,ZEC 價格約為 464 美元,市值接近 80 億美元。對市場而言,這次升級不只是常規技術更新,更關係到 Zcash 供應完整性和隱私資產信譽的修復。

遷移期間仍有隱私提醒

除封鎖潛在偽幣問題外,Ironwood 還引入抗量子交易記錄,以及經過形式化驗證的證明電路。開發者希望藉此降低類似漏洞再次出現的機率,並提升後續網路安全性。

不過,隱私基礎設施供應商 Nym 認為,用戶在遷移資金時若缺乏額外保護,可能會暴露與錢包餘額相關的網路資訊。 Zcash 開發者建議用戶不要急於遷移,並在轉移資金時使用 Tor 或 NymVPN 等隱私工具。

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