# Сопутствующие статьи по теме Cryptography

Новостной центр HTX предлагает последние статьи и углубленный анализ по "Cryptography", охватывающие рыночные тренды, новости проектов, развитие технологий и политику регулирования в криптоиндустрии.

From Principles to the Future: How Quantum Computing Reshapes the Security Landscape of Blockchain

Summary: This article analyzes the real quantum computing threat to blockchain, arguing timelines for cryptographically relevant quantum computers (CRQCs) are often exaggerated. While "Harvest Now, Decrypt Later" (HNDL) attacks necessitate an immediate shift to post-quantum encryption for long-term data secrecy, the transition for digital signatures is less urgent as they are not vulnerable to HNDL attacks. Most blockchains (e.g., Bitcoin, Ethereum) primarily use signatures, not encryption, so they face the threat of future signature forgery, not immediate decryption. However, Bitcoin requires urgent planning due to its slow governance, the need for active user migration of funds, and the risk of losing billions in vulnerable, possibly abandoned coins. Privacy chains with encrypted on-chain data are more immediate HNDL targets. The article cautions against a rushed adoption of immature post-quantum signatures (which are larger and riskier to implement) and zkSNARKs, advising a measured approach. It recommends immediate deployment of hybrid encryption, planning for blockchain migration, prioritizing implementation security (bugs are a bigger near-term risk than quantum computers), and maintaining perspective on quantum computing announcements.

比推2 дня назад 09:34

From Principles to the Future: How Quantum Computing Reshapes the Security Landscape of Blockchain

比推2 дня назад 09:34

a16z's 10,000-Word Essay (Part 1): The Misunderstood 'Quantum Supremacy', You Don't Need to Panic Until 2030

The article clarifies misconceptions about "quantum supremacy" and argues that cryptographically relevant quantum computers (CRQC) capable of breaking classical encryption (e.g., via Shor's algorithm) are unlikely to emerge before 2030. It distinguishes between post-quantum encryption and signatures, emphasizing that encryption requires immediate migration due to "Harvest Now, Decrypt Later" (HNDL) attacks, where adversaries store encrypted data for future decryption. In contrast, post-quantum signatures are less urgency, as they are not vulnerable to HNDL—past signatures remain secure even after CRQC emergence. The article critiques exaggerated claims about quantum progress, noting that current hardware lacks the scale, fidelity, and error correction needed for CRQC. It also highlights that zkSNARKs, like signatures, are not susceptible to HNDL attacks. Migration strategies should prioritize encryption while adopting a measured approach for signatures to avoid unnecessary costs and risks.

marsbit4 ч. назад

a16z's 10,000-Word Essay (Part 1): The Misunderstood 'Quantum Supremacy', You Don't Need to Panic Until 2030

marsbit4 ч. назад

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