🎉Happy #WorldQuantumDay to all quantum computing enthusiasts! Today, we celebrate the exciting developments and possibilities in the quantum world. Let's explore how #blockchain's cybersecurity is impacted by quantum computers. 1/ What is quantum computing? Quantum computing is a rapidly-emerging technology that harnesses the laws of quantum mechanics to solve problems too complex for classical computers. 2/ Supercomputers vs. Quantum Computers: Supercomputers use massive parallelism with thousands of CPUs solving a problem at once. Quantum computers utilize qubits that exist as 0, 1, or in superposition, exploring multiple outcomes simultaneously for faster problem-solving. 3/ How fast are quantum computers? According to researchers from Google, the Frontier supercomputer, currently the world's most powerful, would require over 47 years to process the same calculations, whereas the Sycamore quantum computer achieved it in mere seconds. 4/ What are quantum computers used for? Powerful quantum computers with sufficient stable qubits will be able to tackle complex optimization problems, streamline resource allocation, enhance decision-making processes, and break today's cybersecurity standards. 5/ Why is quantum computing a threat? Today's cryptographic algorithms (RSA, EC) used by the whole internet – including banks, email providers, social media, blockchain platforms, etc .– will be cracked by quantum computers. Everyone needs to switch to post-quantum security. 6/ Do we need to worry today? Yes. Quantum computers are a threat even today, because hackers can steal data today and decrypt it later when quantum computers with enough power (qubits) arrive. This method is called "Store now, decrypt later". 7/ What are the alarming recent events? Apple implemented post-quantum cryptography for iMessage. NATO and WEF raised concerns about the quantum threat. The European Commission published a recommendation on post-quantum cryptography. 8/ How far are quantum computers? From small startups to IT giants like Google, Honeywell, or IBM, and governments—all of them are investing heavily in building quantum computers. IBM leads the way with its 1,121-qubit quantum computer, Condor, revealed in December 2023. 9/ How far really? We are already having the wrong conversation in cryptography if we argue about whether we have 1, 3, or 5 years before quantum computers will break today's security algorithms. We must always be ahead of the curve when it comes to cybersecurity. 10/ How can we switch to quantum-resistant security? Centralized authorities like governments, companies, organizations can switch their IT security to post-quantum cryptography much easier than blockchain platforms. 11/ How is blockchain technology affected by quantum computer attacks? All cryptocurrency wallets relying on Elliptic Curve (EC) cryptography which have at least one outgoing transaction will break. Hackers will be able to steal your cryptocurrency. 12/ Why is blockchain in greatest risk? People often overlook that blockchains are decentralized. Existing public blockchains like Ethereum, Solana, Polkadot, etc. cannot adopt post-quantum cryptography without significant user impact. According to Vitalik Buterin: "few users would lose their funds". 13/ Can a blockchain fork fix this? Pseudonymity of blockchain will backfire at post-quantum migration because it will be impossible to tell legitimate owners migrating their own funds and data or hackers stealing all of it. In this case, billions of "free money" and data could land in hackers' hands if they start migrating on the real owners' behalf making the affected blockchains immediately worthless. There is simply no secondary authentication mechanism to prevent this from happening in case of already running blockchains. 14/ How QANplatform solves this? #QANplatform is developing a quantum-resistant hybrid blockchain designed to be secure against quantum computer attacks from the start. QANplatform implemented the NIST primary recommended post-quantum algorithm called CRYSTALS-Dilithium in Go programming language. To ensure quantum resistance and Ethereum compatibility, QAN developed a custom cross-signature protocol known as the QAN XLINK. 15/ Is QAN's quantum-resistant technology in use? The live QAN Enterprise Blockchain (also known as QAN Private Blockchain) is already quantum-resistant. QAN recently announced that the first EU country has implemented QANplatform's quantum-resistant technology. 16/ Join the QAN TestNet launch in April! QANplatform is launching the world's first quantum-resistant and Ethereum-compatible blockchain testnet, where developers can code smart contracts and web3 solutions in any programming language.
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