Artículos Relacionados con Cryptography

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Vitalik Buterin Says Obfuscation Could Boost Blockchain Privacy

Ethereum co-founder Vitalik Buterin published an article exploring how cryptographic obfuscation could enhance blockchain privacy and security. Obfuscation protects the code of a program itself, making it unreadable while allowing it to function normally, unlike encryption which secures data. Buterin explained that combining obfuscation with blockchain's inherent ability to record ownership could create systems where user privacy is maintained and reliance on central authorities is reduced, enabling secure payments, finance apps, and confidential operations. However, major technical hurdles remain. While research in "indistinguishability obfuscation" has proven it theoretically possible, current implementations are extremely inefficient, with some methods taking impractically long times to execute. Scientists are working on optimizing cryptographic methods and mathematical tools to improve efficiency. Buterin concluded that practical, widely usable obfuscation will take considerable time to develop, but eventual progress could lead to highly secure blockchain products that operate without trusted third parties.

TheNewsCryptoHace 46 min(s)

Vitalik Buterin Says Obfuscation Could Boost Blockchain Privacy

TheNewsCryptoHace 46 min(s)

Quantum Computing Approaches 'Q-Day': How Are Encryption Policies, Investment Logic, and Risk Management Being Reshaped?

Quantum computing's approach towards "Q-Day"—the point when it could break current encryption—is increasingly influencing cryptocurrency policy discussions and investment strategies. As the crypto market faces regulatory developments like the CLARITY Act and significant political lobbying, a new dimension emerges: the intersection of quantum technology with crypto security. The next phase of crypto investment will be shaped by both regulatory clarity and the evolution of cryptography, with quantum readiness becoming a core risk factor. Investors should evaluate projects based not only on utility and adoption but also on their plans to migrate to quantum-resistant cryptographic systems. Policymakers, meanwhile, must treat crypto's cryptographic integrity as critical financial infrastructure, encouraging risk disclosure, upgrade plans, and coordination among stakeholders to ensure the ecosystem's resilience against advancing technological threats.

marsbitHace 4 hora(s)

Quantum Computing Approaches 'Q-Day': How Are Encryption Policies, Investment Logic, and Risk Management Being Reshaped?

marsbitHace 4 hora(s)

Sui Launches Seal MPC Framework to Secure Autonomous AI Agent Transactions

Mysten Labs has introduced Sui Seal MPC, a multi-party computation framework prototype designed to secure transactions for autonomous AI agents on the Sui network. The core innovation allows AI agents to execute on-chain actions without directly exposing private keys, functioning as a critical security and permissions layer rather than establishing full legal autonomy. This development arrives as the crypto market seeks clearer directional trends, with altcoin narratives being judged increasingly on fundamentals like usage and developer progress. The story's significance lies in its intersection of AI, cryptography, and blockchain security, offering a new lens to assess whether market movements are driven by genuine adoption or speculation. Key factors to monitor include follow-up confirmations from primary sources, on-chain data, liquidity responses, and whether this signals the start of a broader thematic trend or remains an isolated headline. The technology's reception will help shape evaluations of Sui, AI agents, and MPC cryptography in the coming weeks.

bitcoinistHace 21 hora(s)

Sui Launches Seal MPC Framework to Secure Autonomous AI Agent Transactions

bitcoinistHace 21 hora(s)

Mysten Labs Launches Sui Seal MPC To Let AI Agents Transact Without Holding Keys

Mysten Labs has launched Sui Seal MPC on the Sui mainnet, a new infrastructure enabling AI agents to execute on-chain transactions without directly holding private keys. The system uses multi-party computation to distribute key shares across independent nodes, eliminating a single point of failure. Move smart contracts can enforce customizable policies like spending caps and allowed counterparties, adding essential guardrails for autonomous operation. A feature for hidden bids in AI-driven trading is also included, allowing encrypted bids to prevent front-running. This launch positions Sui within the emerging "agentic web" by providing a cryptographic foundation for secure, policy-controlled AI agent transactions on-chain.

bitcoinistAyer 17:37

Mysten Labs Launches Sui Seal MPC To Let AI Agents Transact Without Holding Keys

bitcoinistAyer 17:37

The Impossible Trilemma Is Basically a Pseudo-Problem

The article argues that the core limitation of blockchain technology is not the scalability trilemma, but its fundamental lack of privacy, which acts as a barrier to institutional capital. It defines blockchain as a slow, expensive, shared computer whose primary value is "permissionlessness" (no administrator) and verifiable trust. While this is ideal for native financial assets like stable币, which now process trillions, two critical flaws remain for mainstream adoption: regulatory legitimacy and a default transparency that leaks all financial activity. The author contends that transparency is not a feature but a tax, quantified through MEV extraction, making the public ledger unusable for serious institutions. However, modern cryptography, specifically zero-knowledge proofs, now offers a solution: "provable privacy." This allows users to prove compliance (e.g., solvency, KYC) without revealing underlying data. This fusion of privacy and auditability resolves the transparency-compliant privacy-compliance dichotomy, enabling a purely upgraded system where transactions are verified but not broadcasted. Closing these flaws is presented as the essential bridge to onboard the next wave of trillions in capital.

marsbit06/20 12:37

The Impossible Trilemma Is Basically a Pseudo-Problem

marsbit06/20 12:37

The "Impossible Triad" Is Fundamentally a Pseudo-Problem

The article argues that blockchain's fundamental limitation is not the scalability trilemma (decentralization, scalability, security), which has been largely solved, but the lack of **privacy** and, until recently, clear **legitimacy**. Blockchain is described as a slow, expensive, globally shared computer whose core value is censorship resistance and verifiability. While ideal for native digital assets like money (e.g., stablecoins), its default transparency acts as a **tax**, exposing all transactions and enabling MEV extraction, which deters serious institutional capital. Simultaneously, its permissionless nature created regulatory ambiguity. The piece contends that **privacy** is the missing critical feature. It rejects the false choice between total transparency and complete anonymity. Modern cryptography (like zero-knowledge proofs) enables **compliant privacy**: users can prove facts (solvency, KYC status, compliance) without revealing the underlying sensitive data (specific holdings, identities). This preserves auditability for regulators and eliminates the leak of financial information. With recent regulatory progress (e.g., the GENIUS Act) addressing legitimacy, adding default, provably compliant privacy becomes a pure upgrade. It transforms blockchain from a costly, public ledger into a confidential settlement layer, finally bridging the gap to mainstream institutional and individual adoption of on-chain finance.

链捕手06/20 12:36

The "Impossible Triad" Is Fundamentally a Pseudo-Problem

链捕手06/20 12:36

The Quantum Threat Is Coming—Stellar Reveals Its Defense Strategy

The Stellar Development Foundation has released a Quantum Preparedness Plan, aiming to migrate the entire Stellar network to quantum-safe cryptography by the end of 2027. The urgency stems from quantum computers potentially using Shor's algorithm to crack the elliptic curve cryptography currently securing blockchains. A significant challenge identified is handling dormant accounts, where quantum attacks could derive private keys from public ones, risking account takeover. Stellar's structural advantage is that its account addresses are separate from signing keys. This allows users to add quantum-safe signers via existing operations without changing their address or moving assets, unlike most other blockchains. The migration will occur in phases: post-quantum signature verification for smart contracts in 2026, native support for classic accounts in 2027, and a future deprecation of the old Ed25519 standard. However, the plan notes that zero-knowledge proof systems on the network remain vulnerable and require further research.

bitcoinist06/10 18:02

The Quantum Threat Is Coming—Stellar Reveals Its Defense Strategy

bitcoinist06/10 18:02

BlackRock Warns Bitcoin And Ethereum Investors About Quantum Computing

BlackRock's report warns that future advancements in quantum computing could threaten the cryptographic security of Bitcoin, Ethereum, and other digital assets. While no cryptographically relevant quantum computer (CRQC) exists today, the firm stresses the need for proactive industry migration to post-quantum cryptography before "Q-Day." The primary risk lies in the elliptic curve cryptography (ECC) used for digital signatures, which a powerful quantum computer running Shor's algorithm could break. Bitcoin's SHA-256 hash function is considered quantum-resistant, but roughly 35% of circulating BTC may be vulnerable due to exposed public keys. The report notes that Bitcoin's technical upgrade path is relatively narrow, focusing on signature algorithms, but faces significant challenges in decentralized coordination. Ethereum has a more defined migration roadmap but greater complexity due to its proof-of-stake architecture, smart contracts, and layered cryptographic systems. BlackRock concludes that quantum computing presents a manageable but serious long-term risk. Successfully coordinating and implementing post-quantum upgrades across decentralized networks is seen as a multi-year challenge, but one that is less daunting than building a functional CRQC.

bitcoinist06/10 05:02

BlackRock Warns Bitcoin And Ethereum Investors About Quantum Computing

bitcoinist06/10 05:02

Ethereum Foundation Researcher: Quantum Day Is Approaching, Plans to Complete Quantum-Resistant Migration by 2029

Ethereum Foundation researcher Justin Drake discusses the implications of a recent quantum computing breakthrough by Google’s quantum AI team, which demonstrated a 10x efficiency improvement in Shor’s algorithm against the secp256k1 elliptic curve used in Bitcoin and Ethereum. Notably, Google kept key algorithmic details confidential, using zero-knowledge proofs to verify the result without disclosure—a first in academia. Shortly after, the core optimization was independently reproduced, and an open-source competition (ecdsa.fail) emerged, further improving the algorithm by 8.4%. Meanwhile, startup Oratomic published research suggesting that neutral-atom quantum architectures could break secp256k1 with only 10,000 physical qubits, accelerating the timeline for "Q-Day"—the day quantum computers can break widely used cryptography. Drake estimates a 50% probability of Q-Day by 2032 and a 10% chance by 2030, contrasting with the U.S. government’s more conservative 2035 forecast. He warns against panic but stresses timely migration to post-quantum cryptography. Ethereum plans to complete its migration by 2029, covering consensus, data, and execution layers with hash-based systems. The Foundation is also developing leanVM, a formally verifiable zkVM, and has launched two $1 million initiatives to advance SNARK-friendly cryptography.

foresightnews_api06/05 04:07

Ethereum Foundation Researcher: Quantum Day Is Approaching, Plans to Complete Quantum-Resistant Migration by 2029

foresightnews_api06/05 04:07

Peter Todd Warns Zcash Tech Is Too Risky For Bitcoin Privacy Push

Bitcoin developer Peter Todd opposes integrating Zcash-style privacy features into Bitcoin's consensus layer, arguing the cryptographic risk is too high. His comments followed a disclosed issue in Zcash's Orchard shielded pool, sparking a debate on privacy, auditability, and Bitcoin's resistance to change (ossification). Todd distinguishes Bitcoin's transparent ledger, where bugs like the 2010 overflow were visible and reversible, from shielded systems where privacy could hide counterfeit coins or supply destruction, making detection and rollbacks difficult. While critics noted Bitcoin's own history of bugs, Todd countered that these didn't pose the same existential risk. He emphasized that with a significant portion of ZEC already shielded, a hidden bug could devastate user holdings without easy recovery. The discussion highlights the trade-off between advanced privacy and systemic risk in a base protocol.

bitcoinist06/05 03:01

Peter Todd Warns Zcash Tech Is Too Risky For Bitcoin Privacy Push

bitcoinist06/05 03:01

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