Blockchain

Polkadot

Consensus: Quantum-Vulnerable
Why this rating. Judgment call: GRANDPA and validator signatures are planned to move to Dilithium, but only in a June 2025 research roadmap with no code or timeline.
Transactions: Quantum-Vulnerable
Why this rating. Judgment call: accounts use classical Substrate signatures. The only work is a June 2025 research roadmap, with no code and no timeline.
Algorithms: None listed
Website: Website
Source: Source
Note and links: Research roadmap only
Post-quantum cryptography roadmap for Polkadot and JAM (2025)

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