Algorand, Solana, and the XRP Ledger have already executed transactions with quantum-resistant signatures.
Networks like Quantum Resistant Ledger have been born with post-quantum cryptography since their launch.
A Google Quantum AI research revealed on March 30, which estimated {that a} quantum pc may compromise Bitcoin cryptography in lower than 9 minutes, additionally recognized cryptocurrency networks which have already carried out post-quantum cryptography (PQC) and presents them as demonstration that the transition is technically potential.
The doc divides these networks into two teams: those who have been born with PQC from its origin and people which might be integrating it on protocols initially weak to a possible quantum assault.
Cryptocurrency networks that have been born shielded
The Quantum Resistant Ledger (QRL) chain, launched in 2018, is famous by Google as essentially the most consolidated case of post-quantum community from its origin.
Based on the paper from Google, its authentic design was based mostly on a signature scheme known as XMSS (Prolonged Merkle Tree Signature Scheme), an algorithm based mostly on hash capabilities that may be proof against quantum {hardware}.
Based on the official QRL documentation, XMSS protects the signatures with which customers authorize transactions: each time somebody sends funds, the community verifies that signature with XMSS as a substitute of ECDSAthe weak scheme utilized by Bitcoin and Ethereum.
XMSS does nonetheless have an operational limitation. every key solely a restricted quantity can be utilized of occasions safely. Because of this, in accordance with the venture roadmap and the way Google additionally highlights it, QRL is incorporating extra assist for ML-DSA (the graticule-based signature normal authorised by NIST in 2024), which doesn’t have that restriction and expands the flexibleness of the system for various kinds of use.
After Google’s announcement and the point out of the QRL venture, the worth of this token grew greater than 40%as reported by CriptoNoticias.
Mochimo (MCM) is one other community that was born post-quantum. Based on the paper by Google, makes use of a variant of Winternitz One-Time Signatures (WOTS+), one other hash function-based scheme to guard transaction signatures, and is built-in straight into the community’s consensus layer.
Each time a consumer sends funds, signal the transaction together with your personal WOTS+ keyand the nodes confirm that signature with the corresponding public key. As soon as used, the secret is discarded and a brand new one is routinely generated, stopping an attacker from reusing it.
Abelian (ABEL) is the third community that Google identifies as post-quantum since its conception. Not like QRL and Mochimo, Abelian combines quantum resistance with privateness. This chain makes use of lattice cryptography (based mostly on the NIST-approved CRYSTALS-Dilithium and CRYSTALS-Kyber requirements) to defend transaction signatures and account keys.
Moreover, it makes use of linkable ring signature schemes (a mechanism that permits verifying {that a} transaction is respectable with out revealing the sender). to guard the privateness of customers at completely different ranges, from pseudonymity to finish concealment of the quantity and addresses concerned.
Abelian, Google’s analysis signifies, additionally created a second layer community known as QDaywhich helps sensible contracts suitable with the Ethereum Digital Machine (EVM), Ethereum’s code execution setting, below post-quantum safety.
Likewise, the worth of the ABEL token registered a rise of greater than 24% following this report from Google Quantum AI.
Those that are in transition
Algorand (ALGO) is essentially the most superior case on this group. In 2025, the community executed its first transaction protected with Falcon signatures, a lattice-based post-quantum algorithm standardized by NIST.
Within the context of Algorand, Falcon particularly shields sensible transactions and well being assessments (cryptographic state-of-chain certifications utilized in cross-network integrations) and is offered as a local operation for sensible contract builders.
Falcon additionally produces signatures of roughly 1,280 bytes, smaller than different post-quantum schemes. though nonetheless a lot heavier than the present 70-75 byte ECDSA signatures. Based on the paper, Algorand additionally permits customers to alter the personal keys related to their accounts, facilitating a future full migration to PQC.
Solana (SOL) seems within the paper with a extra restricted deployment. Based on Google, and as already reported by CriptoNoticias, the community experimentally carried out a perform known as Solana Winternitz Vault, which makes use of WOTS+ signatures to guard digital belongings saved in particular vaults.
He paper calls it an experimental deployment, which suggests that not built-in into the primary protocol however obtainable as an possibility for customers who need a further layer of post-quantum safety for his or her funds.
Lastly, the community created by Ripple, XRP Ledger (XRPL) can also be listed on the paper from Google. As talked about within the report, in December 2025, engineer Denis Angell, from XRPL Labs, confirmed that the AlphaNet experimental community built-in ML-DSA into three elements of the protocol, with signatures weighing about 2,420 bytes. :
- The accounts: Changing elliptic curve-based keys with lattice-based identities.
- The transactions– Requiring ML-DSA signatures to authorize funds and token transfers.
- The consensus between validators– Defending communications and votes that decide which blocks are legitimate.
Why do these advances matter past these networks?
He paper Google would not simply describe these implementations as remoted achievements. He presents them as proof that the transition to PQC is technically possible in actual networks, with actual customers.
Based on the evaluation, the primary impediment to migration is that the post-quantum schemes obtainable produce signatures between 10 and 100 occasions heavier than present oneswhich suggests larger house occupation in every block, greater commissions and larger storage necessities for the nodes that preserve the community.
Smaller networks, with extra cohesive communities and extra agile governance, they might transfer quicker exactly as a result of that value is distributed over fewer customers and fewer legacy infrastructure.
The panorama that describes the paper from Google is evident: the migration to post-quantum cryptography just isn’t a laboratory speculation however an ongoing course of. The networks born with PQC from their origin reveal that it’s potential to construct armored chains from the primary block, whereas the deployments of Algorand, Solana and XRP Ledger show that already established networks can transfer in that course with out abandoning their ecosystems.
The widespread denominator in all circumstances is governance agility: extra cohesive communities and extra dynamic decision-making constructions allowed for quicker progress. That’s exactly the problem that the cryptocurrency ecosystem as an entire should remedy earlier than quantum {hardware} stops being a theoretical menace.
