Stellar Development Foundation outlines a plan to transition to quantum-safe cryptography by 2027 to protect against future quantum threats.
Stellar's Quantum Preparedness Plan
The Stellar Development Foundation has announced a comprehensive three-phase strategy to transition its blockchain to quantum-safe cryptography, responding to rising concerns about the risks of quantum computing for digital asset security.
As quantum technology advances, experts predict it could threaten cryptographic systems that protect trillions in digital assets. The foundation identifies two main threats: the potential for attackers to falsify validator signatures and the risk of deriving private keys from public keys, with the latter being the primary focus of its Quantum Preparedness Plan.
Stellar's architecture offers advantages over other blockchains like Bitcoin and Ethereum, as its account identities are separate from signing keys. This structure allows users to adopt quantum-safe cryptography without needing to change their addresses or migrate balances, simplifying the transition process.
Phased Migration Timeline
The migration will begin in 2026, starting with the integration of post-quantum signature verification into Stellar’s smart contracts for enterprise wallets. By the end of 2027, all accounts will be able to implement quantum-safe signers while retaining their existing addresses. The final phase, which involves phasing out current cryptographic methods, will depend on advancements in quantum computing and community input.
One challenge remains: managing dormant accounts whose owners cannot be reached. Freezing these accounts would require extensive community discussion rather than unilateral action from the Foundation.
Industry Context and Market Impact
Quantum computing poses a significant threat to major blockchain networks, as many rely on elliptic curve cryptography. The National Institute of Standards and Technology has updated its threat timeline, now predicting that quantum computers could become capable of breaking current cryptography by 2029. In response, developers across the cryptocurrency industry are actively exploring solutions to safeguard their networks.
Currently, Stellar's native token, XLM, has seen a decline of nearly 12% over the past week, trading at $0.196, although it has increased by almost 15% in the last month, reflecting broader market trends.
