Ripple Prepares XRP Ledger For A Future Quantum Threat Ripple released a roadmap whose role is to make the XRP Ledger compatible with post-quantum signatures by 2028. Indeed, the project plans tests, a coexistence period between the old and new systems, as well as a global network migration. However, this protection is not yet activated on the main network. No computer is yet capable of calculating the private keys used to control XRP accounts. In brief - Ripple prepares the XRP Ledger for post-quantum signatures by 2028. - The migration will follow four phases, from testing to global network transition. - Key rotation will facilitate the switch to new signature systems. - Validators will have to approve the integration of post-quantum protections. - Network performance and algorithm security remain at the core of tests. Ripple organizes the XRP Ledger migration in four phases While network activity explodes, Ayo Akinyele, Senior Director of Engineering at Ripple, explained in detail this strategy. For him, the company wants to prepare the infrastructure before quantum computers become an immediate threat. The risk fundamentally rests on elliptic curve-based signatures. The XRP Ledger currently uses the secp256k1 and Ed25519 algorithms. Thus, a very powerful quantum computer would theoretically exploit a public key to find the equivalent private key. Then, it would sign transactions instead of the owner. Here are the key steps of this program : - The first phase provides an emergency procedure in case of sudden breakdown of current cryptography ; - The second evaluates risks, post-quantum algorithms, and their performance consequences ; - The third phase must make current and post-quantum signatures coexist on test networks ; - The fourth aims for a general transition of the XRP Ledger by 2028 at the latest. This guidance document was originally published by Ripple in