better known as the Edwards curve equivalent to Curve25519, and is // the curve used by the Ed25519 signature scheme. // // Most users don't need this package, and should instead use crypto/ed25519 for // signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or // github.com/gtank/ristretto255 for prime order group logic. // // However, developers who do need to interact with low-level edwards25519 // operations can use filippo.io/edwards25519, an extended version of this // package repackaged...