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printed Ripple officially released a multi-level roadmap on April 20, 2026, showing how the XRP Ledger (XRPL) network will transition to post-quantum cryptography, with the goal of achieving full readiness by 2028. quantum computers.
Although this threat does not exist today, Ripple said: “The threat has gone from a hypothetical to a real thing, and preparation time is of the essence.”
Key requirements:
- Ripple is aiming for full post-quantum crypto readiness for the XRPL network by one year 2028.
- A second phase of testing using NIST approved methods begins First half of 2026; Followed by hybrid deployments in the developer network (Devnet) within the third phase in Second half of 2026.
- XRPL’s native key exchange gives the network a more stable migration experience over the Ethereum network, which does not have a standard equivalent protocol.
- The “Quantum Day” disaster plan is already in place; If traditional cryptography is unexpectedly compromised, XRPL will force a switch to secure accounts using zero-knowledge.
- Ripple is compatible with Project Eleven By testing authentication, measuring network performance, and creating a prototype quantum-secure custodial wallet.
What does Ripple’s post-quantum road involve?
The road passes through four main sections:
The first part – the amount of which has already been defined – and the emergency system of “quantum day”: If the old records are completed before the end, XRPL will force the exchange, reject the social signatures and require that money be sent to secure accounts after the amount. The migration method uses zero-knowledge (ZK-proofs) based on post-quantum cryptography to verify ownership of keys without revealing them.
The second part (1H 2026) Develops experiments using NIST-certified algorithms, measuring signature size, verification cost, output sensitivity, and storage properties under real-world XRPL conditions. Engineer Dennis Angell is already working on a prototype ML-DSA On AlphaNet. Project Eleven is also working on the construction of a hybrid post-crowd signature system and the testing of validators and a prototype custody wallet for the construction network.
The third part (2H 2026) Moves from remote testing to post-quantum signatures similar to the elliptic curve signature available on Devnet – available for software testing without disrupting the mainnet. This section also includes post-quantum crypto-friendly primitives for zero-knowledge and homomorphic cryptography, which are compatible with XRPL cryptographic transfers for tokenization use cases.
The fourth part (Target 2028) is a complete change: a new version of the XRPL protocol that incorporates post-quantum cryptography naturally, and is ready to develop and improve the validity and stability of the authentication. Ripple describes this episode as “not a crypto problem,” where the biggest risk is not disrupting what’s already running on the world’s stable internet.
The applied cryptography group leading the project – created by Dr. Murat Cenk, Dr. Tamas Visegradi, Dr. Oleg Borondukov, and Dr. Aanchal Malhotra – is planning with cryptographic flexibility, using several NIST algorithms instead of a single scheme, to ensure that the system can adapt to post-quantum computing.
The implications of the XRP holders’ system are the risks of the protocol
For XRP dedicated to managing the long-term expectations of the protocol, the road achieves two things: it ensures that Ripple takes a quantum risk sufficiently to commit dedicated crypto skills and multi-year construction budgets, and adopts a clear distinction between the XRPL migration process and events.
An emergency plan is a very important thing that cannot be underestimated; Most of the blockchain’s anti-proliferation roads are based on systematic changes that take years, while Ripple is planning the first phase of an unregulated model – a sudden cryptographic explosion – using zero-information to be able to return funds safely even in chaotic environments. This represents a completely different view of risk compared to the “we’ll upgrade” approach.
However, the truth is that 2028 is still a long way off, post-quantum cryptography at the level of ledges is still not solved technically in the production environment, and a large signal can cause real problems in networks competing to establish speed.
The results of the benchmarking of the second phase – which is expected in the first half of 2026 – will be the first real results related to the trade of services. So keep an eye on the network numbers that are being developed, as the XRPL protocol is rapidly changing in several areas at the same time, and quantitative planning is now one of the accepted ones.
A note Ripple unveils XRP Ledger roadmap to combat quantum cyber threats appeared for the first time Cryptonews Arabic.
