The chain developers behind Ripple’s native XRP Ledger are actively preparing to implement quantum-resistant measures. For this reason, the devs picked ML-DSA-44, a digital signature standard that the National Institute of Standards and Technology (NIST) approved in 2024.
Ripple’s Roadmap Goes Straight To The Point
Earlier this year, Ripple introduced a multi-phase roadmap to prepare the XRP Ledger (XRPL) for a post-quantum future, with a target for full readiness by 2028. The new signature format needs 3,732 bytes for public keys and signatures, raising transaction data requirements. This will be audited in mid 2027.
As described in Google’s quantum computing research paper, there’s a few key risks the crypto sphere has to handle. The most quoted one is the exposable public key risks when users transact within the blockchain, something that quantum-computing based hackers could take serious advantage of.
There’s Subliminal Risks Too, And It’s Solvable
There’s a more subtle risk too, one elliptic curve researchers call “harvest now, decrypt later.” Simply put, bad actors can collect publicly visible cryptographic data from the blockchain today and hold onto it. This raises the chances of the account eventually being broken into.
The extra XRP network storage needed for this kind of upgrade doesn’t necessarily raise the fees. Node operators are absorbing the ~3.6 KB increase per protected transaction (from 105 bytes to 3,732 bytes for key plus the signature), as documented in the proposal. With database overhead, every secure payment would use 5,331 bytes of storage.
The XRP Ledger foundation is planning the inaugural phase of the quantum resistance study in early 2027 as devs polish the proposition of key generation between the Python, JavaScript and server versions. Mitigations are done within a zero-knowledge proof to validate results without disclosing vectors.
On The Flipside
- The base-level protection from quantum computing costs $255,000 on rigorous testing, with approximately 640 development hours excluding the audits.
Why This Matters
Quantum physics may be a tough nut to crack for most crypto currencies, but XRP’s developers are set on a mission to get the chain shielded by 2028.
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