Delivery-date: Mon, 21 Oct 2024 08:38:51 -0700
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Date: Mon, 21 Oct 2024 08:35:21 -0700 (PDT)
From: Jon Atack <jonnyatack@gmail.com>
To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Message-Id: <07384dbd-4b98-43db-a71a-e19a1d04f849n@googlegroups.com>
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Subject: [bitcoindev] Re: Proposal for Quantum-Resistant Cryptography in
 Bitcoin - BIP Submission
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Hi Agustin,

Good to see!

Have you seen the work-in-progress BIP draft at=20
https://github.com/bitcoin/bips/pull/1670?  It may be good to review each=
=20
other (and possibly collaborate).

Discussions/references to that draft:
* https://groups.google.com/g/bitcoindev/c/Aee8xKuIC2s/m/cu6xej1mBQAJ (Mail=
ing=20
list discussion)
* https://delvingbitcoin.org/t/proposing-a-p2qrh-bip-towards-a-quantum-
resistant-soft-fork/956?u=3Dcryptoquick (Delving Bitcoin discussion)
* https://bitcoinops.org/en/newsletters/2024/06/14/ (Bitcoin Optech=20
newsletter)
* https://bitcoinops.org/en/podcast
/2024/06/18/#draft-bip-for-quantum-safe-address-format (Bitcoin Optech=20
discussion transcript)

Best regards,
Jon

On Thursday, October 17, 2024 at 5:06:34=E2=80=AFPM UTC-6 Agustin Cruz wrot=
e:

Dear Bitcoin Developers,=20
I would like to propose a Bitcoin Improvement Proposal (BIP) that aims to=
=20
introduce quantum-resistant cryptography to the Bitcoin protocol. With the=
=20
rapid advancement in quantum computing, this proposal outlines the=20
integration of post-quantum cryptographic algorithms (SPHINCS+ and=20
Dilithium) to safeguard Bitcoin=E2=80=99s long-term security.
=20
The key points of the proposal are:=20
- Introduction of quantum-resistant signature algorithms (SPHINCS+ and=20
Dilithium).=20
- New Bech32-based address formats for quantum-resistant addresses.=20
- Modifications to transaction structures and script opcodes to support=20
larger signature sizes.=20
- A transition mechanism through a soft fork to ensure backward=20
compatibility with existing Bitcoin addresses and transactions.=20

The full BIP draft is available here=20
https://github.com/chucrut/bips/blob/master/bip-xxxx.md for your review and=
=20
feedback. I look forward to the community's input and am open to=20
suggestions on how to improve the proposal.=20

Best regards,
Agust=C3=ADn Cruz

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<div>Hi Agustin,</div><div><br /></div><div>Good to see!<br /></div><div><b=
r /></div><div>Have you seen the work-in-progress BIP draft at https://gith=
ub.com/bitcoin/bips/pull/1670?=C2=A0 It may be good to review each other (a=
nd possibly collaborate).<br /></div><div><br /></div><div>Discussions/refe=
rences to that draft:<br /></div><span><span><span><span><span><span>*<span=
> </span><a href=3D"https://groups.google.com/g/bitcoindev/c/Aee8xKuIC2s/m/=
cu6xej1mBQAJ" rel=3D"noreferrer noopener">https://groups.google.<span>com</=
span>/<span>g</span>/<span>bitcoindev</span>/<span>c</span>/<span>Aee8xKuIC=
2s</span>/m/cu6xej1mBQAJ</a> <span>(Mailing list discussion</span>)</span><=
/span></span></span></span></span><span><span><span><span><br />    <span><=
span>*<span> </span><a href=3D"https://delvingbitcoin.org/t/proposing-a-p2q=
rh-bip-towards-a-quantum-resistant-soft-fork/956?u=3Dcryptoquick" rel=3D"no=
referrer noopener">https://delvingbitcoin.org/t/<span>proposing</span>-a-<s=
pan>p2qrh</span>-<span>bip</span>-<span>towards</span>-<span>a</span>-<span=
>quantum</span>-<span>resistant</span>-soft-fork/956?u=3Dcryptoquick</a> <s=
pan>(Delving Bitcoin discussion</span></span></span></span></span></span></=
span>)<span><span><span><span><br /></span></span></span></span><div><span>=
<span><span><span>    <span><span>* <a href=3D"https://bitcoinops.org/en/ne=
wsletters/2024/06/14/" rel=3D"noreferrer noopener">https://bitcoinops.org/e=
n/<span>newsletters</span>/2024/06/14/</a> <span>(Bitcoin Optech newsletter=
</span>)</span></span></span></span></span></span></div><div><span><span>*<=
span> </span><a href=3D"https://bitcoinops.org/en/podcast/2024/06/18/#draft=
-bip-for-quantum-safe-address-format" rel=3D"noreferrer noopener">https://b=
itcoinops.org/en/<span>podcast</span>/2024/06/18/#draft-bip-for-quantum-saf=
e-address-<span>format</span></a> <span>(Bitcoin Optech discussion transcri=
pt</span>)</span></span></div><br /><div>Best regards,</div><div>Jon<br /><=
/div><br /><div><div dir=3D"auto">On Thursday, October 17, 2024 at 5:06:34=
=E2=80=AFPM UTC-6 Agustin Cruz wrote:<br /></div><blockquote style=3D"margi=
n: 0px 0px 0px 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-le=
ft: 1ex;"><div dir=3D"ltr">Dear Bitcoin Developers,=C2=A0<div>I would like =
to propose a Bitcoin Improvement Proposal (BIP) that aims to introduce quan=
tum-resistant cryptography to the Bitcoin protocol. With the rapid advancem=
ent in quantum computing, this proposal outlines the integration of post-qu=
antum cryptographic algorithms (SPHINCS+ and Dilithium) to safeguard Bitcoi=
n=E2=80=99s long-term security.</div><div>=C2=A0</div><div>The key points o=
f the proposal are:=C2=A0</div><div>- Introduction of quantum-resistant sig=
nature algorithms (SPHINCS+ and Dilithium).=C2=A0</div><div>- New Bech32-ba=
sed address formats for quantum-resistant addresses.=C2=A0</div><div>- Modi=
fications to transaction structures and script opcodes to support larger si=
gnature sizes.=C2=A0</div><div>- A transition mechanism through a soft fork=
 to ensure backward compatibility with existing Bitcoin addresses and trans=
actions.=C2=A0</div><div><br /></div><div>The full BIP draft is available h=
ere=C2=A0<a href=3D"https://github.com/chucrut/bips/blob/master/bip-xxxx.md=
" target=3D"_blank" rel=3D"nofollow">https://github.com/chucrut/bips/blob/m=
aster/bip-xxxx.md</a>=C2=A0for your review and feedback. I look forward to =
the community's input and am open to suggestions on how to improve the prop=
osal.=C2=A0</div><div><br /></div><div>Best regards,<br /></div><div>Agust=
=C3=ADn Cruz</div></div>
</blockquote></div>

<p></p>

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