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<CAC3UE4+kme2N6D_Xx8+VaH1BJnkVEfntPmnLQzaqTQfK4D5QhQ@mail.gmail.com> <CAJDmzYxJzFs=myecyMS6iJwSni1sDwUVq3kMnNGg=dK5kULRJg@mail.gmail.com>
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From: Dustin Ray <dustinvonsandwich@gmail.com>
Date: Tue, 11 Feb 2025 16:47:57 -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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I think youre going to have a tough time getting consensus on this
proposal. It is an extraordinary ask of the community to instill a
change that will essentially void out a non-trivial part of the coin
supply, especially when funds behind unused P2PKH addresses are at
this point considered safe from a quantum adversary.
In my opinion, where parts of this proposal make sense is in a quantum
emergency in which an adversary is actively extracting private keys
from known public keys and a transition must be made quickly and
decisively. In that case, we might as well consider funds to be lost
anyways. In any other scenario prior to this hypothetical emergency
however, I have serious doubts that the community is going to consent
to this proposal as it stands.
On Tue, Feb 11, 2025 at 4:37=E2=80=AFPM Agustin Cruz <agustin.cruz@gmail.co=
m> wrote:
>
> Hi Dustin
>
> To clarify, the intent behind making legacy funds unspendable after a cer=
tain block height is indeed a hard security measure=E2=80=94designed to mit=
igate the potentially catastrophic risk posed by quantum attacks on ECDSA. =
The idea is to force a proactive migration of funds to quantum-resistant ad=
dresses before quantum computers become capable of compromising the current=
cryptography.
>
> The migration window is intended to be sufficiently long (determined by b=
oth block height and community input) to provide ample time for users and s=
ervice providers to transition.
>
>
> El mar, 11 de feb de 2025, 9:15=E2=80=AFp. m., Dustin Ray <dustinvonsandw=
ich@gmail.com> escribi=C3=B3:
>>
>> Right off the bat I notice you are proposing that legacy funds become un=
spendable after a certain block height which immediately raises serious pro=
blems. A migration to quantum hard addresses in this manner would cause ser=
ious 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=
.com> wrote:
>>>
>>> Dear Bitcoin Developers,
>>>
>>> I am writing to share my proposal for a new Bitcoin Improvement Proposa=
l (BIP) titled Quantum-Resistant Address Migration Protocol (QRAMP). The go=
al of this proposal is to safeguard Bitcoin against potential future quantu=
m attacks by enforcing a mandatory migration period for funds held in legac=
y Bitcoin addresses (secured by ECDSA) to quantum-resistant addresses.
>>>
>>> The proposal outlines:
>>>
>>> Reducing Vulnerabilities: Transitioning funds to quantum-resistant sche=
mes preemptively to eliminate the risk posed by quantum attacks on exposed =
public keys.
>>> Enforcing Timelines: A hard migration deadline that forces timely actio=
n, rather than relying on a gradual, voluntary migration that might leave m=
any users at risk.
>>> Balancing Risks: Weighing the non-trivial risk of funds being permanent=
ly locked against the potential catastrophic impact of a quantum attack on =
Bitcoin=E2=80=99s security.
>>>
>>> Additionally, the proposal addresses common criticisms such as the risk=
of permanent fund loss, uncertain quantum timelines, and the potential for=
chain splits. It also details backwards compatibility measures, comprehens=
ive security considerations, an extensive suite of test cases, and a refere=
nce implementation plan that includes script interpreter changes, wallet so=
ftware updates, and network monitoring tools.
>>>
>>> For your convenience, I have published the full proposal on my GitHub r=
epository. You can review it at the following link:
>>>
>>> Quantum-Resistant Address Migration Protocol (QRAMP) Proposal on GitHub
>>>
>>> I welcome your feedback and suggestions and look forward to engaging in=
a constructive discussion on how best to enhance the security and resilien=
ce of the Bitcoin network in the quantum computing era.
>>>
>>> Thank you for your time and consideration.
>>>
>>> Best regards,
>>>
>>> Agustin Cruz
>>>
>>> --
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