From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 19 Dec 2025 18:32:19 -0800 Received: from mail-oi1-f183.google.com ([209.85.167.183]) by mail.fairlystable.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1vWmlX-00059P-Ii for bitcoindev@gnusha.org; Fri, 19 Dec 2025 18:32:19 -0800 Received: by mail-oi1-f183.google.com with SMTP id 5614622812f47-4501fcc3affsf1687367b6e.2 for ; Fri, 19 Dec 2025 18:32:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=20230601; t=1766197933; x=1766802733; darn=gnusha.org; h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post :list-id:mailing-list:precedence:x-original-sender:mime-version :subject:message-id:to:from:date:sender:from:to:cc:subject:date :message-id:reply-to; bh=riCdc5/EXzTRxzfH35336S9oQCVDmgg4NfFbhty4lPk=; b=QKwfvRhO8VF41QjCo9F/bG4gqDZt7OboNPGXy/DXiKZjgutDm7Pb285kPqza3SWFwj CsfGOagW3+qq0W32JPGqVzWFgHYx4bH5ZgFBxHny1+ShjW7tC8BsBt/26DFZXB71KJhg T29IszEmpn9b+5WVFbgnV+N1Jt4wZ+Utnqy53cLri1KgsU6/1yhXjramOjfXZ3AJLdgM R1s6TitSflzbxzzBSGy8YRtNb/poA2uagf23SJbicBc3NYxQa9Zw+DxKMahheb2z/L4d 4qMPOpamScNAzGBgTfRzNXQvt2b1QgLOkputJWACJPRPcotxXdvSnjbjh4ElP3iMVW0K +ibg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766197933; x=1766802733; h=list-unsubscribe:list-subscribe:list-archive:list-help:list-post :list-id:mailing-list:precedence:x-original-sender:mime-version :subject:message-id:to:from:date:x-beenthere:x-gm-message-state :sender:from:to:cc:subject:date:message-id:reply-to; bh=riCdc5/EXzTRxzfH35336S9oQCVDmgg4NfFbhty4lPk=; b=RAR3zaB3/9I0PFA1n13hn4WUu0XuFU/j8d25Tdy/XDo5JydGRBmBR/fa/Khy4oj6q7 jwXn/SPYIZo+jmbXPEHHIC/URFHBhL6If3phe0T+/vX20jkgsffwPNa/03ujuz5Fwopx 0heXEnT9dT1GbQsZvqIoNQC2IJJZLP9ey+UWxgbEU6/mEQw+tkSff8MoX5dX6/8YQtQ7 q0n2zOpqyNZvDuUZUOURg6OiOHBrlm7PeGqtCZOIV+Z7ZKZZo8MyHqUzl2CygQvT+blf t9sWIrEYJJgBO7yUHR/B1UP9GXId+vqDhB/rvDEjBXLUIlVqZEJB+u15w5yNc61gAt+J EdMg== Sender: bitcoindev@googlegroups.com X-Forwarded-Encrypted: i=1; AJvYcCVyk4Af3yWF8ace7DXnywRPxwoQ3yQDAVSDB9JvBq+Xgmqm0KiT8oTUbS0X6BNQQXbnsjdgA6LDWIZI@gnusha.org X-Gm-Message-State: AOJu0YxbrQVXovdnAVvspRvxxzXwahIuGLsluvgQuPqvIzpeDBJg0uvM m+KIz+CAbfvmj/4QEvtq8BMWMx47VdrXYCNxTL4zH4Sk2iKZEppV75hr X-Google-Smtp-Source: AGHT+IHqOtG+iD3hZt3U/EkiaE2FFKQORhoEg0M5XZTtdnNjrDZrcuXxkt7kGS/0qhqVV9eud6+ZhA== X-Received: by 2002:a05:6870:e9aa:b0:3ec:554d:c233 with SMTP id 586e51a60fabf-3fda581afddmr2725122fac.28.1766197932764; Fri, 19 Dec 2025 18:32:12 -0800 (PST) X-BeenThere: bitcoindev@googlegroups.com; h="AWVwgWZzwiUhIfimpqcJuyMexMZnw8xVonRSj0yCj7hc3FCcsw==" Received: by 2002:a05:6871:81f:b0:3d5:92b8:657b with SMTP id 586e51a60fabf-3f5f83d7e01ls5700829fac.0.-pod-prod-09-us; Fri, 19 Dec 2025 18:32:08 -0800 (PST) X-Received: by 2002:a05:6808:3a15:b0:44d:a3a1:c86 with SMTP id 5614622812f47-457b215f3b9mr2013445b6e.22.1766197928702; Fri, 19 Dec 2025 18:32:08 -0800 (PST) Received: by 2002:a05:690c:7509:b0:78f:a59b:47c with SMTP id 00721157ae682-78fb3c3a601ms7b3; Fri, 19 Dec 2025 12:45:44 -0800 (PST) X-Received: by 2002:a05:690e:11c8:b0:63f:b2ca:80e1 with SMTP id 956f58d0204a3-6466a7a32a5mr3322051d50.0.1766177143872; Fri, 19 Dec 2025 12:45:43 -0800 (PST) Date: Fri, 19 Dec 2025 12:45:43 -0800 (PST) From: Hunter Beast To: Bitcoin Development Mailing List Message-Id: <7edb8e8f-064b-4409-9c6d-b4361c1e7df7n@googlegroups.com> Subject: [bitcoindev] Major BIP 360 Update MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_87862_1195125400.1766177143442" X-Original-Sender: hunter@surmount.systems Precedence: list Mailing-list: list bitcoindev@googlegroups.com; contact bitcoindev+owners@googlegroups.com List-ID: X-Google-Group-Id: 786775582512 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Score: -0.7 (/) ------=_Part_87862_1195125400.1766177143442 Content-Type: multipart/alternative; boundary="----=_Part_87863_2067877778.1766177143442" ------=_Part_87863_2067877778.1766177143442 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable After reviewing community feedback, Ethan Heilman and I have enlisted the= =20 help of a third co-author, Isabel Foxen Duke ,=20 in an editorial role to lead and execute a clean sheet rewrite of BIP 360. Because previous revisions introduced meaningful technical changes, we=20 determined that a full rewrite, rather than incremental edits, was=20 warranted to improve clarity, internal coherence, and to better articulate= =20 our intentions for managing potential quantum-related risks. Consistent with its previous version, this proposal does not introduce=20 post-quantum signature schemes. Instead, BIP 360 proposes the addition of a= =20 new output type with the key path spend removed, which is thus protected=20 from hypothetical breaks of Elliptic Curve Cryptography (ECC). We have renamed this proposed output type "Pay-to-Tapscript-Hash (P2TSH)"= =20 for clarity, and believe its adoption is an important first step in=20 protecting Bitcoin from potential threats to ECC, via quantum computers or= =20 any other cryptanalytic advancements. Additionally, the proposal now includes test vectors in Python and Rust. With gratitude, we hope you=E2=80=99ll review these changes in the BIP Repo= =20 or at BIP360.org=20 . We look forward to ongoing community feedback, and new= =20 ideas in our efforts to Make Bitcoin Quantum Resistant. Thank you for your time, Hunter Beast --=20 You received this message because you are subscribed to the Google Groups "= Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to bitcoindev+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/= 7edb8e8f-064b-4409-9c6d-b4361c1e7df7n%40googlegroups.com. ------=_Part_87863_2067877778.1766177143442 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

After reviewing community feedback, E= than Heilman and I have enlisted the help of a third co-author, Isabel Foxen = Duke, in an editorial role to lead= and execute a clean sheet rewrite of BIP 360.

Because previous revisions introduced meaningful technic= al changes, we determined that a full rewrite, rather than incremental edit= s, was warranted to improve clarity, internal coherence, and to better arti= culate our intentions for managing potential quantum-related risks.<= /p>

Consistent with its previous versi= on, this proposal does not introduce post-quantum signature schemes. Instea= d, BIP 360 proposes the addition of a new output type with the key path spend removed, which is thus protected from hypothetical brea= ks of Elliptic Curve Cryptography (ECC).

We have renamed this proposed output type "Pay-to-Tapscript-Hash (P2TSH)<= span style=3D"font-size: 11pt; font-family: Arial, sans-serif; color: rgb(0= , 0, 0); background-color: transparent; font-variant-numeric: normal; font-= variant-east-asian: normal; font-variant-alternates: normal; font-variant-p= osition: normal; font-variant-emoji: normal; vertical-align: baseline; whit= e-space-collapse: preserve;">" for clarity, and believe its adoption is an = important first step in protecting Bitcoin from potential threats to ECC, v= ia quantum computers or any other cryptanalytic advancements.

Additionally, the proposal now includes = test vectors in Python and Rust.

Wi= th gratitude, we hope you=E2=80=99ll review these changes in the = BIP Repo or at BIP360.org. We look forward to ongoing community feedback, and new= ideas in our efforts to Make Bitcoin Quantum Resistant.

= Thank you for your time,
Hunter Beast

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