Measures to secure the XRP Ledger against growing quantum threats are accelerating.
Ayo Akinyele, Engineering Lead at RippleX, recently shared a detailed roadmap to make XRP quantum computing-ready by 2028, describing this transition as a major architectural shift rather than a simple upgrade.
Key points
- The XRP Ledger aims to be quantum computing-ready by 2028, and RippleX has also published a phased upgrade roadmap.
- RippleX warns that quantum computing may threaten blockchain security and urges early preparation.
- XRPL's built-in key rotation and seed-based keys may simplify the transition to post-quantum cryptography.
- The plan is divided into four phases, covering testing, integration, and full-scale rollout while maintaining network performance.
Quantum threats are moving from theory to planning
Recent research The emergence of Google Quantum AI has intensified concerns about the risks of quantum computing. Although current systems remain secure, there is growing concern that future quantum computers could break the encryption technologies used to protect blockchain networks.
A key concern is the “collect now, decrypt later” scenario, where attackers collect encrypted data today and wait for quantum technology to mature before decrypting it. For long-term holders, this means it’s crucial to prepare early.
Built-in advantages of the XRP Ledger
The XRP Ledger system includes features designed to simplify the transition process. The native key rotation feature allows users to update their encryption keys without changing their account. Additionally, the seed-based key generation feature ensures the secure creation of new keys over time.
Compared to the network, these features provide a smoother migration path. Ethereum, where similar upgrades may require more complex user actions.
A four-phase roadmap prepared for the quantum era
The engineering lead at RippleX outlined a roadmap detailing a step-by-step approach:
Phase One: Emergency Recovery
This phase is designed to address the worst-case scenario of a sudden failure in current cryptographic techniques. The backup system will allow users to securely transfer funds to quantum-safe accounts using advanced methods such as zero-knowledge proofs.
Phase Two: Research and Testing (Early 2026)
At this stage, the RippleX team will assess quantum risks across the entire network and study their impact on performance, storage, and bandwidth, as larger keys and signatures may present scalability challenges.
Meanwhile, developers will explore how post-quantum cryptography can be integrated into XRPL through early prototypes, including ML-DSA testing on AlphaNet by contributors such as Denis Angell.
Phase Three: Controlled Integration (End of 2026)
Quantum-resistant signatures will run in parallel with the existing system on Devnet, allowing developers to extensively test performance, availability, and network impact without disrupting the live network.
The scope of this phase of research has expanded from signatures to other cryptographic tools, such as zero-knowledge proof methods and homomorphic encryption suitable for post-quantum computing. These methods can enhance the privacy and compliance of XRPL in tokenization and confidential transmission under Multi-Protocol Technology (MPT).
Stage Four: Full Quantum Leap (Target Year: 2028)
The final phase involves launching native post-quantum cryptography on the XRPL through an official network upgrade.
The protocol update will introduce native PQC signatures, which will then be gradually rolled out across the network.
The focus is on maintaining the stability of XRPL, ensuring performance, throughput, and low overhead, while keeping validators reliable and settlements fast and deterministic.
This will require close coordination with ecosystem partners to ensure a smooth migration of all accounts, with the goal of a full launch by 2028.
Efforts across the entire ecosystem
XRPL developers are collaborating with cryptography experts and external partners such as Project Eleven to complete this transition. Internal contributors, including engineers and researchers, are already testing early implementation versions.
The XRPL validator Vet described this process as "XRP's quantum journey," noting that the upgrade will be rolled out in phases rather than all at once. The plan also prioritizes preserving XRPL's existing advantages while preparing for potential unforeseen scenarios.