BroadChain News, April 24, 10:30, according to Bitcoinist, the Ripple development team has released a four-phase roadmap, planning to upgrade the XRP Ledger (XRPL) to a fully quantum-resistant state by 2028. The roadmap is divided into two parallel goals: maintaining network operational capabilities during the transition period and addressing the risk that the quantum threat may arrive earlier. The first phase has already been launched, exploring the use of zero-knowledge proofs as a fallback path for fund security when classical cryptography is compromised.
The second phase is scheduled for implementation in the first half of 2026, testing the compatibility of NIST-recommended quantum-resistant signature schemes with the XRPL transaction model, including validator-level testing, Devnet benchmarking, and a quantum-resistant custody wallet prototype. The third phase (second half of 2026) will deploy candidate quantum-resistant signatures on Devnet to run in parallel with existing elliptic curve signatures.
The fourth phase will formally submit a native quantum-resistant cryptography amendment for the XRPL ecosystem, with the goal of completing the network-wide migration to quantum-resistant signatures by 2028.