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Use Curve25519 for the Cyclic Group of Prime Order #3

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louisabraham opened this issue Aug 21, 2020 · 1 comment

louisabraham commented Aug 21, 2020

The base point x=9 gives a cyclic group of prime order.
This solves the issue of the parameter choice in secp256r1.

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louisabraham commented Aug 23, 2020 •

edited

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In fact it's what Ristretto does (give a group of prime order): https://libsodium.gitbook.io/doc/advanced/point-arithmetic/ristretto

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