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author | Christopher Speller <crspeller@gmail.com> | 2016-09-23 10:17:51 -0400 |
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committer | GitHub <noreply@github.com> | 2016-09-23 10:17:51 -0400 |
commit | 2ca0e8f9a0f9863555a26e984cde15efff9ef8f8 (patch) | |
tree | daae1ee67b14a3d0a84424f2a304885d9e75ce2b /vendor/golang.org/x/crypto/nacl | |
parent | 6d62d65b2dc85855aabea036cbd44f6059e19d13 (diff) | |
download | chat-2ca0e8f9a0f9863555a26e984cde15efff9ef8f8.tar.gz chat-2ca0e8f9a0f9863555a26e984cde15efff9ef8f8.tar.bz2 chat-2ca0e8f9a0f9863555a26e984cde15efff9ef8f8.zip |
Updating golang dependancies (#4075)
Diffstat (limited to 'vendor/golang.org/x/crypto/nacl')
-rw-r--r-- | vendor/golang.org/x/crypto/nacl/box/box.go | 5 | ||||
-rw-r--r-- | vendor/golang.org/x/crypto/nacl/secretbox/example_test.go | 53 | ||||
-rw-r--r-- | vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go | 2 |
3 files changed, 57 insertions, 3 deletions
diff --git a/vendor/golang.org/x/crypto/nacl/box/box.go b/vendor/golang.org/x/crypto/nacl/box/box.go index ca48a6dbf..7ed1864f7 100644 --- a/vendor/golang.org/x/crypto/nacl/box/box.go +++ b/vendor/golang.org/x/crypto/nacl/box/box.go @@ -13,15 +13,16 @@ 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: http://nacl.cr.yp.to/box.html. +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" - "io" ) // Overhead is the number of bytes of overhead when boxing a message. diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go b/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go new file mode 100644 index 000000000..b25e663a8 --- /dev/null +++ b/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go @@ -0,0 +1,53 @@ +// Copyright 2016 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 secretbox_test + +import ( + "crypto/rand" + "encoding/hex" + "fmt" + "io" + + "golang.org/x/crypto/nacl/secretbox" +) + +func Example() { + // Load your secret key from a safe place and reuse it across multiple + // Seal calls. (Obviously don't use this example key for anything + // real.) If you want to convert a passphrase to a key, use a suitable + // package like bcrypt or scrypt. + secretKeyBytes, err := hex.DecodeString("6368616e676520746869732070617373776f726420746f206120736563726574") + if err != nil { + panic(err) + } + + var secretKey [32]byte + copy(secretKey[:], secretKeyBytes) + + // You must use a different nonce for each message you encrypt with the + // same key. Since the nonce here is 192 bits long, a random value + // provides a sufficiently small probability of repeats. + var nonce [24]byte + if _, err := io.ReadFull(rand.Reader, nonce[:]); err != nil { + panic(err) + } + + // This encrypts "hello world" and appends the result to the nonce. + encrypted := secretbox.Seal(nonce[:], []byte("hello world"), &nonce, &secretKey) + + // When you decrypt, you must use the same nonce and key you used to + // encrypt the message. One way to achieve this is to store the nonce + // alongside the encrypted message. Above, we stored the nonce in the first + // 24 bytes of the encrypted text. + var decryptNonce [24]byte + copy(decryptNonce[:], encrypted[:24]) + decrypted, ok := secretbox.Open([]byte{}, encrypted[24:], &decryptNonce, &secretKey) + if !ok { + panic("decryption error") + } + + fmt.Println(string(decrypted)) + // Output: hello world +} diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go b/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go index dbf31bbf4..1e1dff506 100644 --- a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go +++ b/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go @@ -13,7 +13,7 @@ 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: http://nacl.cr.yp.to/secretbox.html. +This package is interoperable with NaCl: https://nacl.cr.yp.to/secretbox.html. */ package secretbox // import "golang.org/x/crypto/nacl/secretbox" |