1// Copyright (c) 2021 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// Package edwards25519 implements group logic for the twisted Edwards curve
6//
7//     -x^2 + y^2 = 1 + -(121665/121666)*x^2*y^2
8//
9// This is better known as the Edwards curve equivalent to Curve25519, and is
10// the curve used by the Ed25519 signature scheme.
11//
12// Most users don't need this package, and should instead use crypto/ed25519 for
13// signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or
14// github.com/gtank/ristretto255 for prime order group logic.
15//
16// However, developers who do need to interact with low-level edwards25519
17// operations can use this package, which is an extended version of
18// crypto/ed25519/internal/edwards25519 from the standard library repackaged as
19// an importable module.
20package edwards25519
21