Daily News 19

Tag: Quantum resistance

  • Researchers Propose Zcash-Style Private Bitcoin Transfers Without Soft Fork

    Researchers Propose Zcash-Style Private Bitcoin Transfers Without Soft Fork

    Key Highlights

    • Alloc Init researchers propose Shielded Bitcoin, a metaprotocol bringing Zcash-style private transfers to Bitcoin without a soft fork, using encrypted notes and zero-knowledge proofs.
    • The system relies on Bitcoin as a “neutral publication and ordering layer” while separate indexers verify ZK-proofs and prevent double-spending, avoiding base-layer consensus changes.
    • Critics highlight a small initial anonymity set and lack of quantum resistance; supporters including Eli Ben-Sasson see it advancing the original Zerocash vision of privacy on Bitcoin.

    Alloc Init Unveils Shielded Bitcoin: Privacy Metaprotocol Without Soft Fork

    Cryptography research firm Alloc Init has published a proposal for Shielded Bitcoin, a metaprotocol designed to bring Zcash-style shielded transactions to the Bitcoin network without requiring a soft fork or consensus changes to the base protocol. The paper, released Thursday by researchers Clara Shikhelman, Mikhail Komarov, and Aleksei Moskvin, outlines a system that would conceal transaction amounts, senders, receivers, and links to previously spent funds using encrypted notes and zero-knowledge proofs.

    Architecture: Bitcoin as Publication Layer, Indexers as Verifiers

    Unlike Zcash, which operates its own blockchain and consensus mechanism, Shielded Bitcoin would not launch a separate chain. Instead, the design explicitly uses Bitcoin as “a neutral publication and ordering layer,” the researchers wrote. Transaction data—encrypted notes, public nullifiers marking notes as spent, and zero-knowledge proofs attesting to validity—would be posted to Bitcoin blocks. Separate software components called indexers would then verify the zero-knowledge proofs, check that funds have not been double-spent, and reconstruct the state of the shielded system off-chain.

    This approach mirrors Zcash’s core cryptographic primitives—encrypted notes, nullifiers, and ZK-proofs—while offloading consensus and finality to Bitcoin’s existing proof-of-work chain. The researchers argue this offers a potential path to stronger privacy for Bitcoin users without the political and technical hurdles of a base-layer protocol upgrade.

    Developer Reactions: Anonymity Set Concerns and Quantum Resistance

    The proposal drew immediate and varied reactions from prominent cryptographers and developers. Vadim Zavodil, a developer, criticized the design on X, arguing that much of its privacy stack had already been implemented by Zcash and questioning the practical anonymity a newly launched system could provide.

    “Privacy is a function of the crowd. Zcash has a real shielded pool built over years,”

    — Vadim Zavodil

    “A brand new metaprotocol starts at zero, so your first private transfer hides in a crowd of one.”

    — Vadim Zavodil

    In a companion post, the Shielded Bitcoin researchers acknowledged a similar limitation, stating that large deposits do not automatically create a large anonymity set. They noted observers may still narrow down relationships between transfers if a small number of actors create most notes or if wallets exhibit distinctive behavior.

    Pierre-Luc Dallaire-Demers, founder of post-quantum cryptography firm Pauli Group, raised a separate concern, describing the construction as interesting but “not quantum resistant at all.” Dallaire-Demers later indicated he was exploring what a fully post-quantum version could look like, assuming Bitcoin eventually adopts a post-quantum signature scheme.

    Support from Zerocash Co-Author Eli Ben-Sasson

    Not all feedback was critical. Eli Ben-Sasson, co-author of the original Zerocash paper and CEO of StarkWare, offered a supportive perspective. In response to Alloc Init’s announcement, Ben-Sasson said the original intent behind the Zerocash paper—which preceded Zcash—was to bring privacy to Bitcoin. He added that he had not yet read the Shielded Bitcoin paper but would like to see the vision of privacy and scalability through zero-knowledge proofs materialize on Bitcoin’s base layer.

    Why This Matters

    Shielded Bitcoin represents a novel attempt to solve Bitcoin’s long-standing privacy limitations without the contentious governance process of a soft fork. By treating Bitcoin as a data-availability and ordering layer—similar to how rollups use Ethereum—the proposal sidesteps the need for miner or node operator consensus on privacy rules. However, the design inherits the bootstrapping challenge common to all new shielded pools: without a large, diverse set of participants, the anonymity set remains small, potentially undermining the very privacy it promises. The quantum-resistance critique also underscores a growing focus in the cryptography community on post-quantum readiness, especially for systems intended to operate for decades. If Bitcoin eventually activates a post-quantum signature scheme, metaprotocols like Shielded Bitcoin would need to migrate their cryptographic primitives accordingly. For now, the proposal adds a concrete, research-grade option to the expanding landscape of Bitcoin privacy tools, joining efforts such as Silent Payments, PayJoins, and second-layer solutions like Lightning Network with Taproot Assets.

    Frequently Asked Questions

    Does Shielded Bitcoin require a Bitcoin soft fork?
    No. The proposal explicitly avoids base-layer consensus changes. It uses Bitcoin only as a publication and ordering layer, with off-chain indexers handling verification of zero-knowledge proofs and double-spend prevention.
    How does Shielded Bitcoin differ from Zcash?
    While it adopts Zcash’s cryptographic architecture—encrypted notes, nullifiers, and ZK-proofs—Shielded Bitcoin does not operate its own blockchain or consensus mechanism. It relies entirely on Bitcoin for finality and data availability.
    What are the main criticisms of the proposal?
    Critics highlight two primary concerns: (1) a newly launched shielded pool starts with an anonymity set of near zero, limiting early privacy, and (2) the current construction is not quantum-resistant, posing long-term risk if large-scale quantum computers become viable.
  • Peter Brandt Predicts Ethereum Rally to $8,600 Amid Vitalik Buterin’s Quantum Focus

    Peter Brandt Predicts Ethereum Rally to $8,600 Amid Vitalik Buterin’s Quantum Focus

    Key Highlights

    • Veteran trader Peter Brandt forecasts Ethereum could reach $8,600 in the long term following a near-term breakout.
    • Ethereum co-founder Vitalik Buterin is prioritizing privacy enhancements, cybersecurity upgrades, and full quantum resistance for the Layer-1 blockchain.
    • The convergence of bullish technical analysis and foundational protocol upgrades signals a dual catalyst for Ethereum’s next growth phase.

    Brandt’s Technical Outlook Targets $8,600 Ethereum

    Veteran commodity trader Peter Brandt, widely followed for his classical charting expertise, has set a long-term price target of $8,600 for Ethereum (ETH). According to Brandt’s analysis, this ambitious level becomes attainable once ETH completes a near-term breakout from its current consolidation pattern. The projection draws on principles of classical charting and trend continuation, suggesting that a decisive move above key resistance could unlock a multi-year uptrend measured by logarithmic scaling. Brandt’s track record in identifying major trend inflections across asset classes lends weight to the forecast among technical analysts and macro-oriented crypto investors.

    Buterin’s Roadmap Prioritizes Quantum Resistance and Privacy

    Simultaneously, Ethereum co-founder Vitalik Buterin has outlined a strategic pivot for the protocol’s base layer, emphasizing three critical pillars: enhanced privacy, strengthened cybersecurity, and full quantum resistance. In recent communications, Buterin stressed that making the Layer-1 blockchain “fully quantum-resistant” is no longer a theoretical exercise but an urgent engineering priority as advances in quantum computing accelerate. The roadmap also doubles down on privacy-preserving frameworks for transactions and smart contracts, alongside hardened client diversity and formal verification to mitigate exploit surfaces. These initiatives aim to future-proof Ethereum’s settlement layer against both emerging cryptographic threats and evolving regulatory expectations around data protection.

    Converging Catalysts: Technical Breakout Meets Protocol Evolution

    The alignment of Brandt’s breakout thesis with Buterin’s architectural overhaul presents a rare confluence of technical and fundamental catalysts. Historically, Ethereum’s most sustained rallies have coincided with major protocol milestones—such as the Merge, Shanghai, and Dencun upgrades—that expanded utility and reduced supply-side pressure. The current focus on quantum-resistant cryptography, including potential adoption of lattice-based signatures and STARK-based validity proofs, could differentiate Ethereum as the first major blockchain to credibly neutralize quantum risk. Meanwhile, privacy enhancements such as stealth addresses and zero-knowledge proofs at the base layer may unlock institutional DeFi adoption that has been constrained by transparency requirements.

    Why This Matters

    Ethereum’s trajectory is increasingly defined by the intersection of market structure and protocol resilience. A breakout to new all-time highs, as Brandt anticipates, would reinforce ETH’s status as a sovereign-grade store of value and the primary collateral layer for on-chain finance. Buterin’s quantum-resistance mandate addresses an existential timeline: NIST’s post-quantum cryptography standards are being finalized, and any blockchain that fails to migrate risks obsolescence. Privacy upgrades, meanwhile, respond to growing demand from enterprises and regulated financial entities that require selective disclosure without sacrificing composability. Together, these developments position Ethereum to capture the next wave of institutional capital allocation into digital assets, provided the technical execution matches the roadmap’s ambition.

    Frequently Asked Questions

    What is Peter Brandt’s price target for Ethereum and what triggers it?
    Peter Brandt projects a long-term target of $8,600 for Ethereum, contingent on a near-term breakout from current price consolidation. His analysis relies on classical charting principles and logarithmic trend extrapolation.
    What are Vitalik Buterin’s current priorities for the Ethereum protocol?
    Vitalik Buterin is prioritizing three core areas: enhancing user privacy, strengthening cybersecurity across clients and smart contracts, and making the Ethereum Layer-1 blockchain fully quantum-resistant against emerging computing threats.
    How do quantum-resistant upgrades affect Ethereum’s long-term viability?
    Quantum-resistant cryptography ensures Ethereum’s settlement layer remains secure against future quantum computers capable of breaking current elliptic-curve signatures. Proactive migration preserves asset integrity, validator security, and trust in the network as a permanent infrastructure layer.
  • XRP Price Prediction 2029: Where Could XRP Be in 3 Years?

    XRP Price Prediction 2029: Where Could XRP Be in 3 Years?

    XRP Price Prediction 2029: Three Scenarios Shaped by Regulation, Bitcoin Halving, and Quantum Resistance

    XRP closed September 2023 at $0.51 and trades near $1.39 today, representing a 2.7x gain over roughly three years. The prior three-year window, from September 2020 to September 2023, delivered a 2.1x return as XRP climbed from $0.24 to $0.51. Despite these successive rallies, the token has never reclaimed its all-time high of $3.84 set in January 2018. As of mid-2025, XRP approached that peak, touching $3.65 in July before closing the month at $3.02—still 64% below the record.

    With a presidential election, the CLARITY Act legislation, and the April 2028 Bitcoin halving all fixed on the calendar, the next three-year window to September 2029 is largely pre-scheduled. Analysts outline three distinct outcomes depending on which catalysts materialize.

    Historical Context: Two Rallies, No New High

    Judge Analisa Torres ruled in July 2023 that XRP sold on secondary markets is not a security. XRP closed September 2023 at $0.51, three months after that decision. The SEC lawsuit, filed in December 2020, had overhung the token for most of the earlier window. Notably, neither the 2.1x nor the 2.7x rally was driven by payment volume or on-chain utility that consumes XRP. Eight years after the 2018 peak, no significant XRP-burning use case has emerged.

    Scenario 1: XRP Stays Below $2 if CLARITY Act Fails

    The bear case assumes the CLARITY Act—which would split crypto oversight between the SEC and CFTC—fails permanently. It also requires the Federal Reserve to hold rates at 3.75% (the level since December 2025) and the 10-year Treasury yield to remain near 4.95%. At those yields, capital prefers government bonds over crypto.

    Under this regime, spot ETFs stall at roughly 2% of circulating supply. Ripple continues releasing up to one billion XRP monthly from escrow, relocking most but leaving 200–400 million tokens hitting the market each month without sufficient institutional demand to absorb them. XRP would drift between $0.80 and $2.00, roughly the range it has occupied for much of the past five years. The token already tested $1.11 on February 5, 2026, its lowest level in 15 months. A drop to $0.80 would represent a further 42% decline from current prices, leaving buyers at $1.39 with dead money rather than a loss by 2029.

    Scenario 2: XRP Reaches $4–$7 if CLARITY Passes and a Bull Cycle Arrives

    The base case requires two conditions: the CLARITY Act becomes law in 2026 or 2027, and a broad crypto bull cycle—likely triggered by the April 2028 Bitcoin halving and subsequent rate cuts—unfolds before 2029. Historical precedent shows a broad bull market has followed each of the three prior halvings within 12–18 months as capital rotates from Bitcoin into other assets.

    Additional requirements include ETF holdings doubling to 4–5% of supply and the launch of XRPL lending with enough collateral to generate fee revenue, finally giving the network utility beyond payments. With those pieces in place, XRP clears $3.84 and sets a new record between $4 and $7—a 2.9x to 5.0x move from $1.39, compared with the 2.7x achieved from 2023 to 2026.

    However, $7 implies a market capitalization near $440 billion, five times today’s $87.4 billion. Circulating supply has grown from roughly 34 billion at the 2018 peak to 62.87 billion, meaning the same price must now support nearly twice as many tokens.

    Scenario 3: XRP at $10–$20 Requires Institutional Collateral Demand

    The bull case builds on the base scenario but adds a critical new variable: banks and funds must begin using XRP as on-chain collateral at scale. That demand cannot materialize until XRPL lending goes live, creating a market for it. Ripple’s dollar-backed stablecoin, RLUSD, would also need to carry the bulk of value moving across the ledger, and Bitcoin would need a fresh cycle pushing it above $150,000.

    Standard Chartered’s published ladder places $19.60 at the top of this band for 2029, a target the bank has maintained even as XRP fell 62% from its cycle high.

    Quantum Resistance: A Decisive Differentiator

    All three forecasts assume banks still trust the XRP Ledger to settle funds in 2029. Ripple targets 2028 for an XRPL amendment implementing quantum-resistant signatures, which would prevent a sufficiently powerful quantum computer from forging transactions. The urgency increased in September 2026 when the estimated cost to crack Bitcoin’s encryption halved, pulling the quantum threat forward for every chain, including XRP.

    If Ethereum or Bitcoin deploys quantum resistance on mainnet first, XRP’s pitch as the settlement layer for regulated finance weakens. If Ripple delivers first, every scenario above strengthens.

    $3.84 Is the Pivot Level Separating the Outcomes

    The $4–$7 base case is the most actionable framework. It requires the CLARITY Act enacted, one bull cycle within the window, and XRP reclaiming $3.84 before any upside counts. A floor vote on the CLARITY Act provides the fastest signal on the bill’s viability. Passage in 2027 opens the ladder above $3.84; stagnation likely condemns XRP to another three years in the $0.80–$2.00 range, pushing a $4 target to 2032 or beyond.