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| author | Stefan Majewsky <majewsky@gmx.net> | 2019-10-29 16:51:07 +0100 |
|---|---|---|
| committer | Stefan Majewsky <majewsky@gmx.net> | 2019-10-29 16:51:07 +0100 |
| commit | afe18e86a7aa2248c69997ed941bcbe3e6b2a655 (patch) | |
| tree | 7aaef5752ba8ad3465e9638c7adca71e1a103ee3 /vendor/golang.org/x/crypto/nacl/secretbox/example_test.go | |
| parent | ef84ca3e82f422118c69a0c562433c185e1dcb9b (diff) | |
| download | gofu-afe18e86a7aa2248c69997ed941bcbe3e6b2a655.tar.gz | |
switch to go.mod
Diffstat (limited to 'vendor/golang.org/x/crypto/nacl/secretbox/example_test.go')
| -rw-r--r-- | vendor/golang.org/x/crypto/nacl/secretbox/example_test.go | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go b/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go deleted file mode 100644 index b25e663..0000000 --- a/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go +++ /dev/null @@ -1,53 +0,0 @@ -// 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 -} |
