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This question already has an answer here:

Is ed25519 quantum resistant? I am using ed25519 as a cryptographic primitive for decentralized identity platform, thus this very crucial question.

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marked as duplicate by Maarten Bodewes, CodesInChaos Nov 15 '18 at 21:22

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • $\begingroup$ It isn’t. It is a digital signature over a twisted Eswards curve. $\endgroup$ – Youssef El Housni Nov 15 '18 at 17:37
  • $\begingroup$ Have you seen this? ed25519 is a form of elliptic curve cryptography which is generally known to be weak against Shor's Algorithm (an algorithm for Quantum Computers) $\endgroup$ – 0kp Nov 15 '18 at 17:47
  • $\begingroup$ That's the 3rd question in quick succession that will probably not be that well received. You need to take some more care before posting, e.g. by looking for dupes and trying to format your question well. $\endgroup$ – Maarten Bodewes Nov 15 '18 at 20:58
  • $\begingroup$ all the questions I asked are well received which have many comments. would appreciate if you could be kinder in your response, to be aligned to the spirit of such open communities $\endgroup$ – Nathan Aw Nov 16 '18 at 5:52

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