blob: 02a2cd6c46a8f4ba0533646bb4c71cd13cba565c [file] [log] [blame]
// Copyright 2017 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 auth_test
import (
func Example() {
// Load your secret key from a safe place and reuse it across multiple
// Sum 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 {
var secretKey [32]byte
copy(secretKey[:], secretKeyBytes)
mac := auth.Sum([]byte("hello world"), &secretKey)
fmt.Printf("%x\n", *mac)
result := auth.Verify(mac[:], []byte("hello world"), &secretKey)
badResult := auth.Verify(mac[:], []byte("different message"), &secretKey)
// Output: eca5a521f3d77b63f567fb0cb6f5f2d200641bc8dada42f60c5f881260c30317
// true
// false