quantum

Recently, there has been a surge of articles warning that quantum computers will soon destroy $BTC . Headlines often sound dramatic, speaking of an “inevitable collapse” or the “end of cryptocurrencies.” But what is the reality?
Theory vs. Reality
Yes, in theory, sufficiently powerful quantum computers could pose a future threat to part of the cryptography Bitcoin relies on—specifically digital signatures (ECDSA). Using Shor’s algorithm, it would be possible to derive a private key from a public key.
That word, however, is crucial: theoretically.
Today’s quantum computers are experimental machines with extremely limited capabilities. They do not have enough stable “logical qubits” to break modern cryptography. Most expert estimates suggest we are decades away from technology that could realistically be used against Bitcoin.
What Is Actually at Risk?
Bitcoin as a whole is not under threat, nor is the blockchain itself. In a hypothetical future, the most vulnerable assets would be old or reused addresses where the public key has already been revealed. Even here, however, there is no immediate danger—this is a scenario that does not exist today.
Bitcoin Is Not a Static System
One critical fact is often overlooked: Bitcoin can evolve—just like the internet or modern encryption standards. Post-quantum cryptographic algorithms already exist and are specifically designed to resist quantum attacks. If quantum computing ever begins to approach real-world threat levels, Bitcoin could undergo protocol upgrades, just as it has in the past with SegWit or Taproot.
So Why the Panic?
Because “Quantum computers will destroy Bitcoin” makes for a better headline than “a long-term technological risk that is being addressed.” Panic-driven articles often blur the line between scientific research and immediate threat—two very different things.
Summary
Quantum computers cannot break Bitcoin today
A theoretical risk exists, but it is long-term
Bitcoin has both the time and the ability to adapt
The panic is media-driven, not technical
Quantum computers are not proof of Bitcoin’s impending collapse, but rather a reminder that no technology remains unchanged forever. And the ability to evolve is precisely one of the reasons Bitcoin has survived so many times already.
#bitcoin #quantum #savecrypto

Actualitatea : Puterea viitoare a calculatoarelor cuantice este o realitate pe care dezvoltatorii o anticipează. Soluția pentru a proteja Bitcoin ar putea fi Zero-Knowledge (ZKP), conform opiniei lui Felix Xu, CEO al ARPA Network.
1. 🔗 Ce este dovada Zero Cunoaștere (ZKP) ?
Este capacitatea de a dovedi că știți ceva fără a revela vreodată ce știți.
🔸️Explicație simplă :
Imaginați-vă că aveți cheia unui dulap secret. Dovediți matematic că o dețineți, fără a arăta vreodată cheia în sine.

Two Revolutions One Myth

Quantum Computing and Bitcoin represent two of the most transformative technologies of the 21st century one redefining computation the other redefining money A persistent narrative claims that quantum computers will eventually break Bitcoin rendering it obsolete While the concern stems from real science the reality is more nuanced quantum computing is unlikely to defeat Bitcoin Here is why

Understanding the Players

Quantum Computing Beyond Binary
Unlike classical computers that use bits 0s and 1s quantum computers use qubits which can exist in multiple states simultaneously thanks to superposition and entanglement This allows them to solve certain complex problems exponentially faster Their potential is revolutionary for fields like drug discovery material science and optimization

Bitcoin Digital Scarcity
Bitcoin is a decentralized digital currency secured by cryptography and a public ledger called the blockchain Its security relies on
1 Cryptographic hash functions SHA256 for linking blocks
2 Digital signatures ECDSA for authorizing transactions
3 Proof of work consensus for network agreement

The Quantum Threat Narrative

The fear centers on two potential attacks

1 Breaking Elliptic Curve Cryptography
Quantum computers using Shors algorithm could theoretically derive private keys from public keys allowing theft of funds

2 Mining Dominance
Using Grovers algorithm quantum computers could potentially mine Bitcoin faster threatening decentralization

Why Quantum Computing Will Not Kill Bitcoin

1 Bitcoin Is Adaptable
Bitcoin has undergone numerous upgrades such as SegWit and Taproot and can implement quantum resistant cryptography Algorithms like lattice based cryptography already exist and can be integrated long before quantum computers pose a real threat The networks decentralized governance allows for coordinated response to existential risks

2 The Timeline Mismatch
Useful stable quantum computers capable of breaking ECDSA are likely decades away from practical deployment Estimates vary but most experts believe we are 10 to 30 years from cryptographically relevant quantum computers Bitcoin developers have ample time to prepare

3 Not All Bitcoin Is Vulnerable
Even if quantum computers could derive private keys from public keys this only affects exposed public keys Currently only addresses that have been used to spend funds reveal their public key Unspent outputs from P2PKH addresses remain protected by hash functions until they are spent Users could move funds to quantum safe addresses during a transition period

4 Mining Is Not Trivial
Quantum advantage in mining is limited Grovers algorithm offers only a quadratic speedup for hashing meaning quantum computers would need to be extraordinarily efficient to outcompete specialized ASIC miners The economic and energy barriers remain significant

5 The Broader Context
If quantum computers break Bitcoins cryptography they will also break traditional banking SSL TLS encryption and government systems Global urgency to upgrade cryptographic standards would emerge with Bitcoin participating in that transition

The Real Timeline A Race Already Underway

Present Day to 2030s to 2040s plus
Bitcoin development of quantum resistant solutions
Gradual adoption of post quantum cryptography
Classical mining continues dominance
Quantum computers advance in controlled environments

Conclusion Evolution Not Extinction

The relationship between quantum computing and Bitcoin is better framed as a challenge to overcome not a death sentence Bitcoin has survived countless predictions of its demise from regulatory crackdowns to forks to market crashes by adapting

Rather than killing Bitcoin quantum computing might even strengthen it by forcing earlier adoption of advanced cryptographic techniques The narrative that quantum will break Bitcoin underestimates both the resilience of decentralized systems and the foresight of their developers

In the end these two technologies may coexist each pushing the other toward innovation with Bitcoin remaining as ever a step ahead of those who predict its end
#Bitcoin #quantumcomputer #quantum $BTC

Bitcoin vs. Cuantum: Cercetătorii investighează semnăturile bazate pe hash, o soluție de criptografie post-cuantică, pentru a proteja $BTC de amenințările cuantice viitoare. Cu toate acestea, dezbaterea privind implementarea se intensifică pe măsură ce termenele se strâng.
Context pe scurt
Criptografia Bitcoin-ului, temelia securității sale, ar putea să se confrunte în cele din urmă cu cea mai mare amenințare de până acum: calculatoarele cuantice. Pentru a contracara acest lucru, cercetătorii explorează scheme de semnătură bazate pe hash ca o actualizare post-cuantică. Aceste semnături sunt construite pe funcții hash, care sunt cu mult mai puțin vulnerabile la atacurile cuantice decât criptografia cu cheie publică de astăzi și au fost evaluate de procesul de standardizare a criptografiei cuantice NIST din SUA.

Modelul de securitate al Bitcoin se bazează pe algoritmi criptografici, în special:
SHA-256: Folosit pentru minerit și hashing.
Algoritmul de Semnătură Digitală pe Curba Eliptică (ECDSA): Folosit pentru cheile private ale portofelelor și tranzacții.
Computerele cuantice ar putea teoretic să spargă aceste algoritmi deoarece pot rezolva probleme matematice complexe de un milion de ori mai repede. Dacă este dezvoltat un computer cuantic suficient de puternic:
Cheile private ale portofelelor ar putea fi reverse-engineered.
Tranzacțiile ar putea fi falsificate.
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2. Este Absența lui Satoshi Nakamoto o Problemă?