24 lines
1.0 KiB
Go
24 lines
1.0 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Package curve25519 provides an implementation of scalar multiplication on
|
|
// the elliptic curve known as curve25519. See https://cr.yp.to/ecdh.html
|
|
package curve25519 // import "golang.org/x/crypto/curve25519"
|
|
|
|
// basePoint is the x coordinate of the generator of the curve.
|
|
var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
|
|
|
|
// ScalarMult sets dst to the product in*base where dst and base are the x
|
|
// coordinates of group points and all values are in little-endian form.
|
|
func ScalarMult(dst, in, base *[32]byte) {
|
|
scalarMult(dst, in, base)
|
|
}
|
|
|
|
// ScalarBaseMult sets dst to the product in*base where dst and base are the x
|
|
// coordinates of group points, base is the standard generator and all values
|
|
// are in little-endian form.
|
|
func ScalarBaseMult(dst, in *[32]byte) {
|
|
ScalarMult(dst, in, &basePoint)
|
|
}
|