宣布達里亞斯！ 🎉完整交叉輸入簽名聚合的第一個加密協議，該協議允許重複使用比特幣曲線SECP256K1。

2025年4月17日，研究人員NCKLR宣布了Dahlias的推出（“基於離散對數的交互式匯總簽名”），這是一種新的加密協議，旨在啟用完整的交叉輸入簽名聚合，同時與比特幣現有的SECP256K1 Elliptic elliptic elliptic eLliptic eLliptic eLliptic curve保持兼容。

Researchers have developed a new cryptographic protocol called Discrete Logarithm-Based Interactive Aggregate Signatures (DahLIAS), which aims to enable full cross-input signature aggregation while remaining compatible with Bitcoin's secp256k1 elliptic curve.

研究人員開發了一種新的加密協議，稱為離散對數的交互式骨料簽名（Dahlias），該協議旨在實現完整的交叉輸入簽名聚合，同時與比特幣的SECP256K1橢圓曲線兼容。

Announcing DahLIAS! 🎉

宣布達里亞斯！ 🎉

The first crypto protocol for full cross-input signature aggregation that allows reusing Bitcoin's curve secp256k1.

完整交叉輸入簽名聚合的第一個加密協議，該協議允許重複使用比特幣曲線SECP256K1。

64B sigs

64B信號

~2x faster verification than half-agg'd Schnorr sigs

〜2倍驗證速度比半腳schnorr sigs快2倍

2-round signing

2輪簽約

Kudos to the team: @real_or_random @yannickseurin! 👇 pic.twitter.com/rOic8Gt0AT— Ncklr (@ncklr) April 17, 2025

感謝團隊：@REAL_OR_RANDOM @yannickseurin！ 👇pic.twitter.com/roic8gt0at- ncklr（@ncklr）2025年4月17日

DahLIAS introduces a 64-byte aggregate signature structure, achieving roughly double the verification speed compared to half-aggregated Schnorr signatures. Notably, DahLIAS requires only a two-round signing process among participants. This design offers potential improvements in both transaction efficiency and scalability for Bitcoin and related protocols.

Dahlias引入了64個字節的骨料簽名結構，與半聚集的schnorr簽名相比，驗證速度的兩倍。值得注意的是，大麗花只需要參與者的兩輪簽名過程。該設計為比特幣和相關協議的交易效率和可擴展性提供了潛在的提高。

The full academic paper detailing DahLIAS is available on the International Association for Cryptologic Research (IACR) ePrint archive, providing an in-depth explanation of the scheme's technical underpinnings and security assumptions.

全部學術論文詳細介紹了達利亞斯（Dahlias），可在國際加密研究協會（IACR）EPRINT檔案中獲得，可深入解釋該計劃的技術基礎和安全假設。

DahLIAS builds on broader research efforts into Cross-Input Signature Aggregation (CISA) for Bitcoin, an area of active development aimed at reducing transaction sizes, lowering fees, and improving privacy. A 2024 research paper sponsored by the Human Rights Foundation (HRF) outlined the significance of CISA for Bitcoin's future.

Dahlias以更廣泛的研究工作為基礎，用於比特幣的交叉輸入簽名聚合（CISA），該領域旨在減少交易規模，降低費用和改善隱私。由人權基金會（HRF）贊助的2024年研究論文概述了CISA對比特幣未來的重要性。

"Aggregating multiple signatures across transaction inputs could lower transaction costs, encourage privacy-enhancing tools like CoinJoin, and reduce network congestion, ultimately paving the way for a more efficient and scalable Bitcoin network," the HRF paper stated.

HRF論文說：“跨交易輸入的多個簽名可以降低交易成本，鼓勵增強隱私的工具，例如CoinJoin，並減少網絡擁塞，最終為更有效，更可擴展的比特幣網絡鋪平了道路。”

Bitcoin's Taproot upgrade in 2021 introduced Schnorr signatures, enabling limited forms of aggregation within single multi-signature transactions. However, cross-input aggregation—combining signatures across multiple inputs with different ownership—remained a complex challenge due to technical risks such as rogue key attacks and interactivity requirements.

比特幣在2021年的Taproot升級引入了Schnorr簽名，從而在單個多簽名交易中實現了有限的聚合形式。但是，由於技術風險（例如Rogue鍵攻擊和互動性要求），跨輸入匯總（將多個輸入跨多個輸入之間的簽名都重新確定。

DahLIAS addresses some of these challenges by leveraging interactive aggregation while maintaining compatibility with Bitcoin's established cryptographic standards. Although its adoption would require further development and potentially consensus changes, DahLIAS represents a notable advancement in ongoing efforts to make Bitcoin transactions more efficient and private.

Dahlias通過利用交互式聚合來解決其中一些挑戰，同時保持與比特幣已建立的加密標準的兼容性。儘管它的採用將需要進一步發展並有可能發生共識的變化，但Dahlias代表了正在進行的努力使比特幣交易更加高效和私密的努力的顯著進步。

The DahLIAS project was developed by a team including cryptographers Yannick Seurin and Tim Ruffing, with contributions from Ncklr, highlighting the collaboration between academic research and Bitcoin development communities.

Dahlias項目是由一個由密碼學家Yannick Seurin和Tim Ruffing在內的團隊開發的，並由NCKLR貢獻了，強調了學術研究與比特幣發展社區之間的合作。

Further research and real-world testing will determine whether DahLIAS or similar protocols will be proposed for integration into Bitcoin's protocol roadmap.

進一步的研究和現實世界測試將決定是否將提出Dahlias或類似協議，以集成到比特幣的協議路線圖中。