Ripple maps XRPL quantum-security transition through 2028
Ripple is moving ahead with a four-phase programme to prepare the XRP Ledger for post-quantum cryptography, targeting a transition to quantum-resistant signatures by 2028 while testing security mechanisms before a large-scale quantum threat becomes practical. The roadmap, set out by Ripple in April and detailed by its engineering team, is designed to protect accounts and transactions if powerful…
Ripple has embarked on a multi-phase plan to prepare the XRP Ledger for quantum-resistant cryptography, with a target transition by 2028. This roadmap aims to safeguard accounts and transactions against potential threats posed by powerful quantum computers as they may eventually break the elliptic-curve cryptography currently in use across blockchain networks.
Ripple's senior director of engineering, Ayo Akinyele, emphasized that this initiative is a multi-year infrastructure migration rather than a simple software patch. The first stage of the plan centers on contingency measures for the anticipated "Q-Day," a point when quantum machines could potentially compromise public-key cryptography.
Ripple is investigating a contingency mechanism that would halt acceptance of vulnerable classical signatures, providing a secure route for account holders to transfer funds to post-quantum accounts. One proposed approach involves using post-quantum zero-knowledge proofs, allowing users to demonstrate control of existing keys without exposing those keys during the migration.
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