Google’s Quantum AI paper ranks Cardano as the second most ‘quantum-ready blockchain’ after Algorand. The ranking is based on the report “Securing Elliptic Curve Cryptocurrencies against Quantum Vulnerabilities.”
Cardano ranked second in quantum-resistant blockchain preparedness
Cardano has been ranked second on a list of potential blockchains that have the resistance for quantum computer attacks. Cardano representative Dori shared the report by Google Quantum AI that shows research on how prepared the different blockchains are in terms of the ‘post-quantum cryptography (PQC).’
As per the list, Algorand holds the first rank over Cardano, implying that they are the only blockchain operating live with the capacity of quantum-resistant transactions that support rotating keys. According to reports, they have the infrastructure to migrate their users to better cryptographic methods.
Last week, Google published a report on how they are building infrastructure to prepare for the PQC era, as the quantum frontier may be closer than it seemed.
For a quantum computer to break elliptic curve cryptography, it would require access to a visible public key. Cardano is designed to hide its public keys for longer than other blockchains, using the eUTXO (Extended Unspent Transaction Output) model, which helps with a level of protection for users in the ecosystem. The feature prevents any potential attackers from viewing the key until the transaction is completed.
Boosting quantum readiness, Google’s quantum AI paper says
Sebastian Guillemot, Cardano Midnight’s Chief Technology Officer, assured users that the platform is safe from quantum computer threats in 2025, an indication that the blockchain has been proactively preparing ahead of future potential threats.
The paper also highlights Google Cloud’s collaboration with Cardano, joining as an initial validator for Cardano’s Midnight sidechain. This way they can test and secure blockchain staking using Google’s confidential computing and Mandiant monitoring tools.
Google’s report stated two categories of blockchain, one named ‘vulnerable but preparing’ and the other under ‘broader attack surface.’ This reflection highlights the extent to which the potential impact of quantum computing on cryptocurrencies has been analyzed.
The tech world is preparing
Additionally, the Ethereum Foundation had also announced their plans to actively plan a quantum-safe migration around 2029.
However, the paper also serves as a warning. The threat of quantum computing is no longer speculative. Google’s researchers are proving it, urging all stakeholders to mobilize now to protect the future of blockchain networks.
