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Project Overview
Project Eleven is is applying post-quantum cryptography (PQC) to existing protocols, starting with Bitcoin. This will ensure they remain secure even when classical cryptography fails. Its first solution is yellowpages, a post-quantum proof of Bitcoin ownership that allows users to instantly generate quantum-resistant keys and securely link them to existing Bitcoin addresses.
Researcher cracks 15-bit ECC key, earns 1 Bitcoin reward
According to Odaily, independent researcher Giancarlo Lelli was awarded the Q-Day Prize and 1 Bitcoin by quantum security startup Project Eleven for successfully cracking the encryption keys protecting Bitcoin. Giancarlo Lelli utilized publicly available quantum hardware and a variant of Shor's algorithm to crack a 15-bit encryption key among 32,767 possibilities. The difficulty of this quantum attack is 512 times greater than the 6-bit key record set in September 2025. Project Eleven CEO Alex Pruden stated that the resource requirements for such attacks continue to decline, with approximately 6.9 million Bitcoins currently held in vulnerable static addresses, including 1 million Bitcoins owned by Satoshi Nakamoto. The Bitcoin network has proposed BIP-360 to introduce quantum-resistant address types, while platforms such as Ethereum, Ripple, and Tron have also begun releasing plans for transitioning to post-quantum defenses.
Ripple Releases XRPL Post-Quantum Migration Roadmap, Targeting Full Transition by 2028 at the Latest
Ripple has unveiled a four-phase roadmap for post-quantum security on the XRP Ledger (XRPL), aiming to complete the full transition to a post-quantum signature system by 2028 at the latest. The roadmap includes: a Q-Day emergency migration mechanism; quantum risk assessment and testing of NIST-recommended algorithms in the first half of 2026; parallel integration of candidate post-quantum signature schemes on Devnet in the second half of 2026; and subsequent network-wide, large-scale cutover via an XRPL Amendment. Ripple stated it is already collaborating with Project Eleven on validator testing, Devnet benchmarking, and development of a custodial wallet prototype. It emphasized that assets are not under immediate threat today but must address the “harvest now, decrypt later” risk.
Ripple Unveils Quantum-Resistant Phased Roadmap: Aims to Upgrade XRP Ledger by 2028
Odaily News Ripple has announced a phased roadmap, planning to advance the XRP Ledger towards a quantum-resistant upgrade by 2028. The plan includes formulating a "Quantum-Day" contingency plan to address potential sudden threats from quantum computing and will involve preliminary testing and validation in collaboration with Project Eleven. Ripple stated that this initiative aims to prepare in advance for the transition to post-quantum security, with the entire plan to be implemented in four phases:Phase 1: Q-Day Emergency Preparedness (Initiated). Establish a Quantum Day (Q-Day) emergency response mechanism. If existing classical cryptographic systems are suddenly compromised, the network will immediately stop accepting traditional public key signatures and enforce a mandatory migration to quantum-safe accounts.Phase 2: Risk Assessment & Algorithm Testing (First Half of 2026). Conduct a comprehensive assessment of the impact of post-quantum cryptography on the XRP Ledger's network performance, storage, and bandwidth. Collaborate with Project Eleven to perform validator-level testing and Devnet benchmarking, deploy the NIST-standardized ML-DSA quantum-safe signature scheme, and develop a prototype for a post-quantum custody wallet.Phase 3: Devnet Hybrid Integration (Second Half of 2026). Integrate candidate post-quantum signature schemes in parallel with existing elliptic curve signatures on the Developer Network (Devnet), allowing developers to test performance and system impact without affecting the mainnet. Simultaneously explore post-quantum zero-knowledge proof primitives and homomorphic encryption technologies for Confidential Transfers, to advance the privacy and compliance capabilities for tokenized real-world assets on the XRPL.Phase 4: Mainnet Full Upgrade (Target 2028). Submit a formal protocol Amendment. Upon approval through validator voting, natively enable full post-quantum cryptography on the mainnet. (Cointelegraph)
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Researcher cracks 15-bit ECC key, earns 1 Bitcoin reward
According to Odaily, independent researcher Giancarlo Lelli was awarded the Q-Day Prize and 1 Bitcoin by quantum security startup Project Eleven for successfully cracking the encryption keys protecting Bitcoin. Giancarlo Lelli utilized publicly available quantum hardware and a variant of Shor's algorithm to crack a 15-bit encryption key among 32,767 possibilities. The difficulty of this quantum attack is 512 times greater than the 6-bit key record set in September 2025. Project Eleven CEO Alex Pruden stated that the resource requirements for such attacks continue to decline, with approximately 6.9 million Bitcoins currently held in vulnerable static addresses, including 1 million Bitcoins owned by Satoshi Nakamoto. The Bitcoin network has proposed BIP-360 to introduce quantum-resistant address types, while platforms such as Ethereum, Ripple, and Tron have also begun releasing plans for transitioning to post-quantum defenses.
Quantum Computers Crack 15-bit ECC Keys; Bitcoin’s 256-bit Security Remains Unthreatened—But Migration Countdown Accelerates
According to CryptoSlate, Project Eleven awarded the Q-Day Prize to researcher Giancarlo Lelli on April 24 for successfully deriving a 15-bit elliptic curve private key from its public key using publicly accessible quantum hardware—the largest publicly demonstrated instance of its kind to date, representing a 512-fold improvement over the prior 6-bit demonstration in September 2025. Lelli employed a variant of Shor’s algorithm tailored to the Elliptic Curve Discrete Logarithm Problem (ECDLP), the mathematical foundation of Bitcoin’s signature scheme; the award-winning hardware comprised approximately 70 qubits. Currently, no known quantum computer can break real Bitcoin wallets, and Bitcoin’s 256-bit elliptic curve security remains far beyond the capabilities of existing quantum systems. Notably, Google revised downward its resource estimates for ECDLP-256 on March 31 and set a post-2029 target for migration to quantum-resistant cryptography; Cloudflare promptly followed suit, and the UK’s National Cyber Security Centre (NCSC) established migration milestones between 2028 and 2035. On-chain data indicates that roughly 6.93 million BTC are currently exposed to potential quantum risk due to publicly revealed public keys. The Bitcoin community has proposed BIP 360 and BIP 361 to facilitate migration toward quantum-resistant output types; however, coordination across the decentralized network remains the greatest challenge.
Ripple Releases XRPL Post-Quantum Migration Roadmap, Targeting Full Transition by 2028 at the Latest
Ripple has unveiled a four-phase roadmap for post-quantum security on the XRP Ledger (XRPL), aiming to complete the full transition to a post-quantum signature system by 2028 at the latest. The roadmap includes: a Q-Day emergency migration mechanism; quantum risk assessment and testing of NIST-recommended algorithms in the first half of 2026; parallel integration of candidate post-quantum signature schemes on Devnet in the second half of 2026; and subsequent network-wide, large-scale cutover via an XRPL Amendment. Ripple stated it is already collaborating with Project Eleven on validator testing, Devnet benchmarking, and development of a custodial wallet prototype. It emphasized that assets are not under immediate threat today but must address the “harvest now, decrypt later” risk.
Ripple Unveils Quantum-Resistant Phased Roadmap: Aims to Upgrade XRP Ledger by 2028
Odaily News Ripple has announced a phased roadmap, planning to advance the XRP Ledger towards a quantum-resistant upgrade by 2028. The plan includes formulating a "Quantum-Day" contingency plan to address potential sudden threats from quantum computing and will involve preliminary testing and validation in collaboration with Project Eleven. Ripple stated that this initiative aims to prepare in advance for the transition to post-quantum security, with the entire plan to be implemented in four phases:Phase 1: Q-Day Emergency Preparedness (Initiated). Establish a Quantum Day (Q-Day) emergency response mechanism. If existing classical cryptographic systems are suddenly compromised, the network will immediately stop accepting traditional public key signatures and enforce a mandatory migration to quantum-safe accounts.Phase 2: Risk Assessment & Algorithm Testing (First Half of 2026). Conduct a comprehensive assessment of the impact of post-quantum cryptography on the XRP Ledger's network performance, storage, and bandwidth. Collaborate with Project Eleven to perform validator-level testing and Devnet benchmarking, deploy the NIST-standardized ML-DSA quantum-safe signature scheme, and develop a prototype for a post-quantum custody wallet.Phase 3: Devnet Hybrid Integration (Second Half of 2026). Integrate candidate post-quantum signature schemes in parallel with existing elliptic curve signatures on the Developer Network (Devnet), allowing developers to test performance and system impact without affecting the mainnet. Simultaneously explore post-quantum zero-knowledge proof primitives and homomorphic encryption technologies for Confidential Transfers, to advance the privacy and compliance capabilities for tokenized real-world assets on the XRPL.Phase 4: Mainnet Full Upgrade (Target 2028). Submit a formal protocol Amendment. Upon approval through validator voting, natively enable full post-quantum cryptography on the mainnet. (Cointelegraph)