• 2025-07-01

EdDSA algorithms 2 – Digital Signatures

The points on the elliptic curve form a group under addition, that is: The neutral element for this group is (0,1). The explicit formulas for computing the points x3 and y3 are and Unlike with many other elliptic curves, these formulas have the advantage of being complete. That means they are valid for all points…

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EdDSA algorithms – Digital Signatures

9.4.4 EdDSA algorithms The ed25519 and ed448 algorithms are instantiations of the Edwards-Curve Digital Signature Algorithm (EdDSA) with the elliptic curves edwards25519 and edwards448, respectively. The algorithms are defined in RFC 8032 Edwards-Curve Digital Signature Algorithm (EdDSA). The ed25519 algorithm offers roughly 128-bit security. This is in line with the security level recommended by common…

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