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authorLibravatar Terin Stock <terinjokes@gmail.com>2025-03-09 17:47:56 +0100
committerLibravatar Terin Stock <terinjokes@gmail.com>2025-03-10 01:59:49 +0100
commit3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch)
treef61faa581feaaeaba2542b9f2b8234a590684413 /vendor/golang.org/x/crypto/curve25519/curve25519.go
parent[chore] update URLs to forked source (diff)
downloadgotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz
[chore] remove vendor
Diffstat (limited to 'vendor/golang.org/x/crypto/curve25519/curve25519.go')
-rw-r--r--vendor/golang.org/x/crypto/curve25519/curve25519.go90
1 files changed, 0 insertions, 90 deletions
diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519.go b/vendor/golang.org/x/crypto/curve25519/curve25519.go
deleted file mode 100644
index 21ca3b2ee..000000000
--- a/vendor/golang.org/x/crypto/curve25519/curve25519.go
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright 2019 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 the X25519 function, which
-// performs scalar multiplication on the elliptic curve known as Curve25519.
-// See RFC 7748.
-//
-// This package is a wrapper for the X25519 implementation
-// in the crypto/ecdh package.
-package curve25519
-
-import "crypto/ecdh"
-
-// ScalarMult sets dst to the product scalar * point.
-//
-// Deprecated: when provided a low-order point, ScalarMult will set dst to all
-// zeroes, irrespective of the scalar. Instead, use the X25519 function, which
-// will return an error.
-func ScalarMult(dst, scalar, point *[32]byte) {
- if _, err := x25519(dst, scalar[:], point[:]); err != nil {
- // The only error condition for x25519 when the inputs are 32 bytes long
- // is if the output would have been the all-zero value.
- for i := range dst {
- dst[i] = 0
- }
- }
-}
-
-// ScalarBaseMult sets dst to the product scalar * base where base is the
-// standard generator.
-//
-// It is recommended to use the X25519 function with Basepoint instead, as
-// copying into fixed size arrays can lead to unexpected bugs.
-func ScalarBaseMult(dst, scalar *[32]byte) {
- curve := ecdh.X25519()
- priv, err := curve.NewPrivateKey(scalar[:])
- if err != nil {
- panic("curve25519: internal error: scalarBaseMult was not 32 bytes")
- }
- copy(dst[:], priv.PublicKey().Bytes())
-}
-
-const (
- // ScalarSize is the size of the scalar input to X25519.
- ScalarSize = 32
- // PointSize is the size of the point input to X25519.
- PointSize = 32
-)
-
-// Basepoint is the canonical Curve25519 generator.
-var Basepoint []byte
-
-var basePoint = [32]byte{9}
-
-func init() { Basepoint = basePoint[:] }
-
-// X25519 returns the result of the scalar multiplication (scalar * point),
-// according to RFC 7748, Section 5. scalar, point and the return value are
-// slices of 32 bytes.
-//
-// scalar can be generated at random, for example with crypto/rand. point should
-// be either Basepoint or the output of another X25519 call.
-//
-// If point is Basepoint (but not if it's a different slice with the same
-// contents) a precomputed implementation might be used for performance.
-func X25519(scalar, point []byte) ([]byte, error) {
- // Outline the body of function, to let the allocation be inlined in the
- // caller, and possibly avoid escaping to the heap.
- var dst [32]byte
- return x25519(&dst, scalar, point)
-}
-
-func x25519(dst *[32]byte, scalar, point []byte) ([]byte, error) {
- curve := ecdh.X25519()
- pub, err := curve.NewPublicKey(point)
- if err != nil {
- return nil, err
- }
- priv, err := curve.NewPrivateKey(scalar)
- if err != nil {
- return nil, err
- }
- out, err := priv.ECDH(pub)
- if err != nil {
- return nil, err
- }
- copy(dst[:], out)
- return dst[:], nil
-}