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