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Date: Wed, 5 Mar 2025 05:40:17 -0800 (PST)
From: =?UTF-8?Q?Michal_Koles=C3=A1r?= <michal@zeleny-ctverec.cz>
To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
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Subject: [bitcoindev] Re: Proposal for Quantum-Resistant Address Migration
Protocol (QRAMP) BIP
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Dear Agustin,
enforcement in general doesn=E2=80=99t seem like a good choice to me. If I =
were to=20
compare it to the real world, it=E2=80=99s as if people had money or jewelr=
y in=20
bank vaults that were unbreakable at the time they were stored. After a=20
certain period, it=E2=80=99s discovered that these vaults could be breached=
, and=20
we=E2=80=99d tell everyone they have to buy new vaults and move their diamo=
nds,=20
gold, and banknotes into them. If they don=E2=80=99t do it, everything in t=
heir old=20
vaults would be confiscated and destroyed. Surely, it=E2=80=99s normal that=
people=20
would naturally buy new vaults (or move to safer ones) if they=E2=80=99re i=
nformed=20
well in advance and loudly enough about the outdated vaults. And if they=20
decide not to replace them, someone will eventually break in sooner or=20
later and become the new owner of their "wealth." That=E2=80=99s how it wor=
ks in=20
the real world, after all. Yes, perhaps if someone steals a large amount of=
=20
Bitcoin en masse, it might temporarily lower its value. But that=E2=80=99s =
fine=E2=80=94it=20
would just redistribute old, lost, or unused Bitcoins into new ownership,=
=20
where someone would start using them. It=E2=80=99s like finding a lost trea=
sure=20
from the past at the bottom of the ocean.
Best regards,
Michal
On Wednesday, February 12, 2025 at 1:10:17=E2=80=AFAM UTC+1 Agustin Cruz wr=
ote:
Dear Bitcoin Developers,
I am writing to share my proposal for a new Bitcoin Improvement Proposal=20
(BIP) titled *Quantum-Resistant Address Migration Protocol (QRAMP)*. The=20
goal of this proposal is to safeguard Bitcoin against potential future=20
quantum attacks by enforcing a mandatory migration period for funds held in=
=20
legacy Bitcoin addresses (secured by ECDSA) to quantum-resistant addresses.
The proposal outlines:
- *Reducing Vulnerabilities:* Transitioning funds to quantum-resistant=
=20
schemes preemptively to eliminate the risk posed by quantum attacks on=
=20
exposed public keys.
- *Enforcing Timelines:* A hard migration deadline that forces timely=20
action, rather than relying on a gradual, voluntary migration that might=
=20
leave many users at risk.
- *Balancing Risks:* Weighing the non-trivial risk of funds being=20
permanently locked against the potential catastrophic impact of a quantu=
m=20
attack on Bitcoin=E2=80=99s security.
Additionally, the proposal addresses common criticisms such as the risk of=
=20
permanent fund loss, uncertain quantum timelines, and the potential for=20
chain splits. It also details backwards compatibility measures,=20
comprehensive security considerations, an extensive suite of test cases,=20
and a reference implementation plan that includes script interpreter=20
changes, wallet software updates, and network monitoring tools.
For your convenience, I have published the full proposal on my GitHub=20
repository. You can review it at the following link:
Quantum-Resistant Address Migration Protocol (QRAMP) Proposal on GitHub=20
<https://github.com/chucrut/bips/blob/master/bip-xxxxx.md>
I welcome your feedback and suggestions and look forward to engaging in a=
=20
constructive discussion on how best to enhance the security and resilience=
=20
of the Bitcoin network in the quantum computing era.
Thank you for your time and consideration.
Best regards,
Agustin Cruz
--=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/=
83e89408-a20c-4297-96eb-3ca353be02abn%40googlegroups.com.
------=_Part_29199_924021874.1741182017423
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div style=3D"color: black; background-color: transparent; font-family: san=
s-serif;">Dear Agustin,</div><div style=3D"color: black; background-color: =
transparent; font-family: sans-serif;"><br /></div><div style=3D"color: bla=
ck; background-color: transparent; font-family: sans-serif;">enforcement in=
general doesn=E2=80=99t seem like a good choice to me. If I were to compar=
e it to the real world, it=E2=80=99s as if people had money or jewelry in b=
ank vaults that were unbreakable at the time they were stored. After a cert=
ain period, it=E2=80=99s discovered that these vaults could be breached, an=
d we=E2=80=99d tell everyone they have to buy new vaults and move their dia=
monds, gold, and banknotes into them. If they don=E2=80=99t do it, everythi=
ng in their old vaults would be confiscated and destroyed. Surely, it=E2=80=
=99s normal that people would naturally buy new vaults (or move to safer on=
es) if they=E2=80=99re informed well in advance and loudly enough about the=
outdated vaults. And if they decide not to replace them, someone will even=
tually break in sooner or later and become the new owner of their "wealth."=
That=E2=80=99s how it works in the real world, after all. Yes, perhaps if =
someone steals a large amount of Bitcoin en masse, it might temporarily low=
er its value. But that=E2=80=99s fine=E2=80=94it would just redistribute ol=
d, lost, or unused Bitcoins into new ownership, where someone would start u=
sing them. It=E2=80=99s like finding a lost treasure from the past at the b=
ottom of the ocean.</div><div style=3D"color: black; background-color: tran=
sparent; font-family: sans-serif;"><br /></div><div style=3D"color: black; =
background-color: transparent; font-family: sans-serif;">Best regards,</div=
><div style=3D"color: black; background-color: transparent; font-family: sa=
ns-serif;">Michal</div><br /><div><div dir=3D"auto">On Wednesday, February =
12, 2025 at 1:10:17=E2=80=AFAM UTC+1 Agustin Cruz wrote:<br /></div><blockq=
uote style=3D"margin: 0px 0px 0px 0.8ex; border-left: 1px solid rgb(204, 20=
4, 204); padding-left: 1ex;"><p style=3D"color: rgb(34, 34, 34); font-famil=
y: Arial, Helvetica, sans-serif; font-size: small;">Dear Bitcoin Developers=
,</p><p style=3D"color: rgb(34, 34, 34); font-family: Arial, Helvetica, san=
s-serif; font-size: small;">I am writing to share my proposal for a new Bit=
coin Improvement Proposal (BIP) titled=C2=A0<strong>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"color: rgb(34, 34,=
34); font-family: Arial, Helvetica, sans-serif; font-size: small;">The pro=
posal outlines:</p><ul style=3D"color: rgb(34, 34, 34); font-family: Arial,=
Helvetica, sans-serif; font-size: small;"><li style=3D"margin-left: 15px;"=
><strong>Reducing Vulnerabilities:</strong>=C2=A0Transitioning funds to qua=
ntum-resistant schemes preemptively to eliminate the risk posed by quantum =
attacks on exposed public keys.</li><li style=3D"margin-left: 15px;"><stron=
g>Enforcing Timelines:</strong>=C2=A0A hard migration deadline that forces =
timely action, rather than relying on a gradual, voluntary migration that m=
ight leave many users at risk.</li><li style=3D"margin-left: 15px;"><strong=
>Balancing Risks:</strong>=C2=A0Weighing the non-trivial risk of funds bein=
g permanently locked against the potential catastrophic impact of a quantum=
attack on Bitcoin=E2=80=99s security.</li></ul><p style=3D"color: rgb(34, =
34, 34); font-family: Arial, Helvetica, sans-serif; font-size: small;">Addi=
tionally, the proposal addresses common criticisms such as the risk of perm=
anent fund loss, uncertain quantum timelines, and the potential for chain s=
plits. It also details backwards compatibility measures, comprehensive secu=
rity considerations, an extensive suite of test cases, and a reference impl=
ementation plan that includes script interpreter changes, wallet software u=
pdates, and network monitoring tools.</p><p style=3D"color: rgb(34, 34, 34)=
; font-family: Arial, Helvetica, sans-serif; font-size: small;">For your co=
nvenience, I have published the full proposal on my GitHub repository. You =
can review it at the following link:</p><p style=3D"color: rgb(34, 34, 34);=
font-family: Arial, Helvetica, sans-serif; font-size: small;"><a rel=3D"no=
opener nofollow" href=3D"https://github.com/chucrut/bips/blob/master/bip-xx=
xxx.md" style=3D"color: rgb(17, 85, 204);" target=3D"_blank">Quantum-Resist=
ant Address Migration Protocol (QRAMP) Proposal on GitHub</a></p><p style=
=3D"color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font=
-size: small;">I welcome your feedback and suggestions and look forward to =
engaging in a constructive discussion on how best to enhance the security a=
nd resilience of the Bitcoin network in the quantum computing era.</p><p st=
yle=3D"color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; f=
ont-size: small;">Thank you for your time and consideration.</p><p style=3D=
"color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-si=
ze: small;">Best regards,</p><p style=3D"color: rgb(34, 34, 34); font-famil=
y: Arial, Helvetica, sans-serif; font-size: small;">Agustin Cruz</p></block=
quote></div>
<p></p>
-- <br />
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bitcoindev/83e89408-a20c-4297-96eb-3ca353be02abn%40googlegroups.com?utm_med=
ium=3Demail&utm_source=3Dfooter">https://groups.google.com/d/msgid/bitcoind=
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