From afe18e86a7aa2248c69997ed941bcbe3e6b2a655 Mon Sep 17 00:00:00 2001 From: Stefan Majewsky Date: Tue, 29 Oct 2019 16:51:07 +0100 Subject: switch to go.mod --- vendor/golang.org/x/crypto/nacl/box/box.go | 86 ------------------------------ 1 file changed, 86 deletions(-) delete mode 100644 vendor/golang.org/x/crypto/nacl/box/box.go (limited to 'vendor/golang.org/x/crypto/nacl/box/box.go') diff --git a/vendor/golang.org/x/crypto/nacl/box/box.go b/vendor/golang.org/x/crypto/nacl/box/box.go deleted file mode 100644 index 7ed1864..0000000 --- a/vendor/golang.org/x/crypto/nacl/box/box.go +++ /dev/null @@ -1,86 +0,0 @@ -// 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 box authenticates and encrypts messages using public-key cryptography. - -Box uses Curve25519, XSalsa20 and Poly1305 to encrypt and authenticate -messages. The length of messages is not hidden. - -It is the caller's responsibility to ensure the uniqueness of nonces—for -example, by using nonce 1 for the first message, nonce 2 for the second -message, etc. Nonces are long enough that randomly generated nonces have -negligible risk of collision. - -This package is interoperable with NaCl: https://nacl.cr.yp.to/box.html. -*/ -package box // import "golang.org/x/crypto/nacl/box" - -import ( - "io" - - "golang.org/x/crypto/curve25519" - "golang.org/x/crypto/nacl/secretbox" - "golang.org/x/crypto/salsa20/salsa" -) - -// Overhead is the number of bytes of overhead when boxing a message. -const Overhead = secretbox.Overhead - -// GenerateKey generates a new public/private key pair suitable for use with -// Seal and Open. -func GenerateKey(rand io.Reader) (publicKey, privateKey *[32]byte, err error) { - publicKey = new([32]byte) - privateKey = new([32]byte) - _, err = io.ReadFull(rand, privateKey[:]) - if err != nil { - publicKey = nil - privateKey = nil - return - } - - curve25519.ScalarBaseMult(publicKey, privateKey) - return -} - -var zeros [16]byte - -// Precompute calculates the shared key between peersPublicKey and privateKey -// and writes it to sharedKey. The shared key can be used with -// OpenAfterPrecomputation and SealAfterPrecomputation to speed up processing -// when using the same pair of keys repeatedly. -func Precompute(sharedKey, peersPublicKey, privateKey *[32]byte) { - curve25519.ScalarMult(sharedKey, privateKey, peersPublicKey) - salsa.HSalsa20(sharedKey, &zeros, sharedKey, &salsa.Sigma) -} - -// Seal appends an encrypted and authenticated copy of message to out, which -// will be Overhead bytes longer than the original and must not overlap. The -// nonce must be unique for each distinct message for a given pair of keys. -func Seal(out, message []byte, nonce *[24]byte, peersPublicKey, privateKey *[32]byte) []byte { - var sharedKey [32]byte - Precompute(&sharedKey, peersPublicKey, privateKey) - return secretbox.Seal(out, message, nonce, &sharedKey) -} - -// SealAfterPrecomputation performs the same actions as Seal, but takes a -// shared key as generated by Precompute. -func SealAfterPrecomputation(out, message []byte, nonce *[24]byte, sharedKey *[32]byte) []byte { - return secretbox.Seal(out, message, nonce, sharedKey) -} - -// Open authenticates and decrypts a box produced by Seal and appends the -// message to out, which must not overlap box. The output will be Overhead -// bytes smaller than box. -func Open(out, box []byte, nonce *[24]byte, peersPublicKey, privateKey *[32]byte) ([]byte, bool) { - var sharedKey [32]byte - Precompute(&sharedKey, peersPublicKey, privateKey) - return secretbox.Open(out, box, nonce, &sharedKey) -} - -// OpenAfterPrecomputation performs the same actions as Open, but takes a -// shared key as generated by Precompute. -func OpenAfterPrecomputation(out, box []byte, nonce *[24]byte, sharedKey *[32]byte) ([]byte, bool) { - return secretbox.Open(out, box, nonce, sharedKey) -} -- cgit v1.3.1