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in follow-up to the question: 85202 There, @Ugam Kamat wrote ""ECDSA is the first thing that can get vulnerable with quantum computer. signature will need to move to post quantum world much before quantum PoW.""

My follow-up to that: to which signature concept are experts thinking on moving to in the future, any ideas circulating right now?

thx

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There's no consensus about the best post-quantum crypto encryption/authentication algorithms, but NIST has a competition to choose the best post-quantum crypto algorithms that are asymmetric (where public key and private key different). Surely there's enough time to wait for the competition to end before spending any effort on post-quantum cryptocurrency (Exceptions: qBitcoin, which is impractical, and Bitcoin Candy, which has no progress)

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