比特幣與量子計算：減輕迫在眉睫的威脅

比特幣不受量子計算機的影響嗎？專家們敲響了警鐘，敦促採取行動，以免為時已晚。讓我們來分析一下風險以及可以採取的措施。

Bitcoin vs. Quantum Computing: Mitigating the Looming Threat

比特幣與量子計算：減輕迫在眉睫的威脅

Bitcoin, Quantum Computing, Threat Mitigation – these aren't just buzzwords; they represent a potentially seismic shift in the crypto landscape. So, what's the deal? Let's break it down.

比特幣、量子計算、威脅緩解——這些不僅僅是流行語；它們代表了加密領域潛在的巨大變化。那麼，到底是怎麼回事呢？讓我們來分解一下。

The Quantum Menace: A Ticking Clock for Bitcoin?

量子威脅：比特幣的時鐘在滴答作響？

The big worry? Quantum computers. These machines, still largely theoretical, have the potential to crack Bitcoin's core cryptography. As Charles Edwards from Capriole Investments pointed out, a significant chunk of Bitcoin – we're talking potentially 25% – could be vulnerable to a quantum attack if those coins aren't moved to quantum-resistant addresses.

最擔心的是什麼？量子計算機。這些機器在很大程度上仍處於理論階段，有可能破解比特幣的核心密碼學。正如 Capriole Investments 的 Charles Edwards 指出的那樣，如果不將比特幣轉移到抗量子地址，那麼很大一部分比特幣（我們指的是可能為 25%）可能容易受到量子攻擊。

Think of it this way: Bitcoin's security relies on the difficulty of reversing the link between a public key (your Bitcoin address) and a private key (which proves you own the Bitcoin). Regular computers can't really do it but quantum computers, using Shor's algorithm, could theoretically make it a walk in the park.

可以這樣想：比特幣的安全性依賴於逆轉公鑰（您的比特幣地址）和私鑰（證明您擁有比特幣）之間的鏈接的難度。普通計算機確實無法做到這一點，但使用肖爾算法的量子計算機理論上可以讓它變得輕而易舉。

Address Reuse: A Risky Business

地址重用：一項有風險的業務

Here's where things get a bit technical, but stick with me. Early Bitcoin transactions used a system called “pay to public key” (P2PK), which exposed the public key directly. Later, a new system, “pay to public key hash” (P2PKH), hid the public key until a transaction occurred. However, if you reuse a P2PKH address after a transaction, you're exposing that public key again, creating an opening for a quantum attack.

這是事情變得有點技術性的地方，但請跟著我。早期的比特幣交易使用一種稱為“公鑰支付”（P2PK）的系統，該系統直接暴露公鑰。後來，一個新系統“支付公鑰哈希”（P2PKH）隱藏了公鑰，直到交易發生。但是，如果您在交易後重複使用 P2PKH 地址，則會再次暴露該公鑰，從而為量子攻擊創造機會。

Deloitte's research estimates that a substantial portion of Bitcoin – about 4 million BTC – is stored in these vulnerable addresses. That's like leaving the keys to your Bentley in the ignition.

德勤的研究估計，很大一部分比特幣（約 400 萬比特幣）存儲在這些易受攻擊的地址中。這就像把賓利車鑰匙留在點火開關里一樣。

The Race Against Time: Post-Quantum Solutions

與時間賽跑：後量子解決方案

The good news? This isn't a surprise attack. Developers are already working on post-quantum signature schemes – new cryptographic algorithms that are resistant to quantum cracking. The Bitcoin community needs to prioritize these solutions and figure out realistic migration paths.

好消息？這不是突然襲擊。開發人員已經在研究後量子簽名方案——抵抗量子破解的新密碼算法。比特幣社區需要優先考慮這些解決方案並找出現實的遷移路徑。

Nic Carter, cofounder of Coin Metrics, stresses the urgency of planning for this. He urges the community to prioritize post-quantum signature schemes and realistic migration paths, framing them as engineering work rather than a distant thought experiment. Basic hygiene, like avoiding address reuse, is also crucial.

Coin Metrics 聯合創始人 Nic Carter 強調了為此進行規劃的緊迫性。他敦促社區優先考慮後量子簽名方案和現實的遷移路徑，將其視為工程工作而不是遙遠的思想實驗。基本衛生（例如避免地址重複使用）也至關重要。

Progress in Quantum Computing: Closer Than We Think?

量子計算的進展：比我們想像的更接近？

Quantum computing is no longer just science fiction. Recent breakthroughs show real progress in hardware precision and control. For example, Quantinuum's H-series system achieved a two-qubit gate fidelity of 99.9%. Researchers at RIKEN and Fujitsu developed a 256-qubit processor and plan to expand to 1,000 qubits by 2026.

量子計算不再只是科幻小說。最近的突破表明硬件精度和控制方面取得了真正的進步。例如，Quantinuum 的 H 系列系統實現了 99.9% 的雙量​​子位門保真度。 RIKEN 和富士通的研究人員開發了一款 256 量子位處理器，併計劃到 2026 年擴展到 1,000 量子位。

While a quantum computer capable of breaking Bitcoin's encryption is still some time away, the gap is closing. Steve Tippeconnic, a researcher using IBM’s 133-qubit platform, even used quantum interference to solve a small elliptic curve problem, marking a significant milestone.

雖然能夠破解比特幣加密的量子計算機還需要一段時間，但差距正在縮小。使用 IBM 133 量子位平台的研究人員 Steve Tippeconnic 甚至使用量子乾涉解決了一個小的橢圓曲線問題，標誌著一個重要的里程碑。

What’s Next? Preparing for the Inevitable

接下來是什麼？為不可避免的事情做好準備

So, what can be done? Experts suggest migrating Bitcoin to a quantum-safe signature scheme, but that could require significant coordinated downtime across the network. The consensus? Start planning now.

那麼，可以做什麼呢？專家建議將比特幣遷移到量子安全簽名方案，但這可能需要整個網絡的大量協調停機時間。共識？現在就開始計劃吧。

Conner Brown, the new Head of Strategy at the Bitcoin Policy Institute, comes from a background of digital asset legislation. The Bitcoin Policy Institute (BPI) is a non-profit, non-partisan think tank working to guide America through the rise of Bitcoin and transformative technologies with research and education. It seems like the BPI is ready to contribute to quantum mitigation.

比特幣政策研究所新任戰略主管康納·布朗 (Conner Brown) 擁有數字資產立法背景。比特幣政策研究所（BPI）是一個非營利、無黨派的智庫，致力於通過研究和教育引導美國應對比特幣和變革性技術的崛起。 BPI 似乎已準備好為量子緩解做出貢獻。

Final Thoughts: Don't Panic, But Pay Attention

最後的想法：不要驚慌，但要注意

Bottom line? Quantum computing poses a real, long-term threat to Bitcoin. But it's not time to sell all your holdings and run for the hills. Instead, it's time for the Bitcoin community to get serious about developing and implementing post-quantum solutions. It’s time to get ahead of the curve. Who knows, maybe quantum-resistant Bitcoin will be the next big thing!

底線？量子計算對比特幣構成了真正的長期威脅。但現在還不是賣掉所有財產並逃之夭夭的時候。相反，現在是比特幣社區認真開發和實施後量子解決方案的時候了。是時候走在前面了。誰知道呢，也許抗量子比特幣將成為下一個大事件！