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From: Dustin Ray <dustinvonsandwich@gmail.com>
Date: Tue, 11 Feb 2025 16:15:19 -0800
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Subject: Re: [bitcoindev] Proposal for Quantum-Resistant Address Migration
Protocol (QRAMP) BIP
To: Agustin Cruz <agustin.cruz@gmail.com>
Cc: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
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Right off the bat I notice you are proposing that legacy funds become
unspendable after a certain block height which immediately raises serious
problems. A migration to quantum hard addresses in this manner would cause
serious financial damage to anyone holding legacy funds, if I understand
your proposal correctly.
On Tue, Feb 11, 2025 at 4:10=E2=80=AFPM Agustin Cruz <agustin.cruz@gmail.co=
m> wrote:
> Dear Bitcoin Developers,
>
> I am writing to share my proposal for a new Bitcoin Improvement Proposal
> (BIP) titled *Quantum-Resistant Address Migration Protocol (QRAMP)*. The
> goal of this proposal is to safeguard Bitcoin against potential future
> quantum attacks by enforcing a mandatory migration period for funds held =
in
> legacy Bitcoin addresses (secured by ECDSA) to quantum-resistant addresse=
s.
>
> The proposal outlines:
>
> - *Reducing Vulnerabilities:* Transitioning funds to quantum-resistant
> schemes preemptively to eliminate the risk posed by quantum attacks on
> exposed public keys.
> - *Enforcing Timelines:* A hard migration deadline that forces timely
> action, rather than relying on a gradual, voluntary migration that mig=
ht
> leave many users at risk.
> - *Balancing Risks:* Weighing the non-trivial risk of funds being
> permanently locked against the potential catastrophic impact of a quan=
tum
> attack on Bitcoin=E2=80=99s security.
>
> Additionally, the proposal addresses common criticisms such as the risk o=
f
> permanent fund loss, uncertain quantum timelines, and the potential for
> chain splits. It also details backwards compatibility measures,
> comprehensive security considerations, an extensive suite of test cases,
> and a reference implementation plan that includes script interpreter
> changes, wallet software updates, and network monitoring tools.
>
> For your convenience, I have published the full proposal on my GitHub
> repository. You can review it at the following link:
>
> Quantum-Resistant Address Migration Protocol (QRAMP) Proposal on GitHub
> <https://github.com/chucrut/bips/blob/master/bip-xxxxx.md>
>
> I welcome your feedback and suggestions and look forward to engaging in a
> constructive discussion on how best to enhance the security and resilienc=
e
> of the Bitcoin network in the quantum computing era.
>
> Thank you for your time and consideration.
>
> Best regards,
>
> Agustin Cruz
>
> --
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<div dir=3D"auto">Right off the bat I notice you are proposing that legacy =
funds become unspendable after a certain block height which immediately rai=
ses serious problems. A migration to quantum hard addresses in this manner =
would cause serious financial damage to anyone holding legacy funds, if I u=
nderstand your proposal correctly.</div><div><br><div class=3D"gmail_quote =
gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Feb 11=
, 2025 at 4:10=E2=80=AFPM Agustin Cruz <<a href=3D"mailto:agustin.cruz@g=
mail.com">agustin.cruz@gmail.com</a>> wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;bo=
rder-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">=
<p style=3D"font-family:Arial,Helvetica,sans-serif;font-size:small;color:rg=
b(34,34,34)">Dear Bitcoin Developers,</p><p style=3D"font-family:Arial,Helv=
etica,sans-serif;font-size:small;color:rgb(34,34,34)">I am writing to share=
my proposal for a new Bitcoin Improvement Proposal (BIP) titled=C2=A0<stro=
ng style=3D"font-family:Arial,Helvetica,sans-serif">Quantum-Resistant Addre=
ss Migration Protocol (QRAMP)</strong>. The goal of this proposal is to saf=
eguard Bitcoin against potential future quantum attacks by enforcing a mand=
atory migration period for funds held in legacy Bitcoin addresses (secured =
by ECDSA) to quantum-resistant addresses.</p><p style=3D"font-family:Arial,=
Helvetica,sans-serif;font-size:small;color:rgb(34,34,34)">The proposal outl=
ines:</p><ul style=3D"font-family:Arial,Helvetica,sans-serif;font-size:smal=
l;color:rgb(34,34,34)"><li style=3D"margin-left:15px;font-family:Arial,Helv=
etica,sans-serif"><strong style=3D"font-family:Arial,Helvetica,sans-serif">=
Reducing Vulnerabilities:</strong>=C2=A0Transitioning funds to quantum-resi=
stant schemes preemptively to eliminate the risk posed by quantum attacks o=
n exposed public keys.</li><li style=3D"margin-left:15px;font-family:Arial,=
Helvetica,sans-serif"><strong style=3D"font-family:Arial,Helvetica,sans-ser=
if">Enforcing Timelines:</strong>=C2=A0A hard migration deadline that force=
s timely action, rather than relying on a gradual, voluntary migration that=
might leave many users at risk.</li><li style=3D"margin-left:15px;font-fam=
ily:Arial,Helvetica,sans-serif"><strong style=3D"font-family:Arial,Helvetic=
a,sans-serif">Balancing Risks:</strong>=C2=A0Weighing the non-trivial risk =
of funds being permanently locked against the potential catastrophic impact=
of a quantum attack on Bitcoin=E2=80=99s security.</li></ul><p style=3D"fo=
nt-family:Arial,Helvetica,sans-serif;font-size:small;color:rgb(34,34,34)">A=
dditionally, the proposal addresses common criticisms such as the risk of p=
ermanent fund loss, uncertain quantum timelines, and the potential for chai=
n splits. It also details backwards compatibility measures, comprehensive s=
ecurity considerations, an extensive suite of test cases, and a reference i=
mplementation plan that includes script interpreter changes, wallet softwar=
e updates, and network monitoring tools.</p><p style=3D"font-family:Arial,H=
elvetica,sans-serif;font-size:small;color:rgb(34,34,34)">For your convenien=
ce, I have published the full proposal on my GitHub repository. You can rev=
iew it at the following link:</p><p style=3D"font-family:Arial,Helvetica,sa=
ns-serif;font-size:small;color:rgb(34,34,34)"><a rel=3D"noopener" href=3D"h=
ttps://github.com/chucrut/bips/blob/master/bip-xxxxx.md" style=3D"font-fami=
ly:Arial,Helvetica,sans-serif;color:rgb(17,85,204)" target=3D"_blank">Quant=
um-Resistant Address Migration Protocol (QRAMP) Proposal on GitHub</a></p><=
p style=3D"font-family:Arial,Helvetica,sans-serif;font-size:small;color:rgb=
(34,34,34)">I welcome your feedback and suggestions and look forward to eng=
aging in a constructive discussion on how best to enhance the security and =
resilience of the Bitcoin network in the quantum computing era.</p><p style=
=3D"font-family:Arial,Helvetica,sans-serif;font-size:small;color:rgb(34,34,=
34)">Thank you for your time and consideration.</p><p style=3D"font-family:=
Arial,Helvetica,sans-serif;font-size:small;color:rgb(34,34,34)">Best regard=
s,</p><p style=3D"font-family:Arial,Helvetica,sans-serif;font-size:small;co=
lor:rgb(34,34,34)">Agustin Cruz</p>
<p></p>
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