1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// Copyright (C) 2017. See AUTHORS.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package openssl
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"testing"
)
func TestSHA256HMAC(t *testing.T) {
key := []byte("d741787cc61851af045ccd37")
data := []byte("5912EEFD-59EC-43E3-ADB8-D5325AEC3271")
h, err := NewHMAC(key, EVP_SHA256)
if err != nil {
t.Fatalf("Unable to create new HMAC: %s", err)
}
if _, err := h.Write(data); err != nil {
t.Fatalf("Unable to write data into HMAC: %s", err)
}
var actualHMACBytes []byte
if actualHMACBytes, err = h.Final(); err != nil {
t.Fatalf("Error while finalizing HMAC: %s", err)
}
actualString := hex.EncodeToString(actualHMACBytes)
// generate HMAC with built-in crypto lib
mac := hmac.New(sha256.New, key)
mac.Write(data)
expectedString := hex.EncodeToString(mac.Sum(nil))
if expectedString != actualString {
t.Errorf("HMAC was incorrect: expected=%s, actual=%s", expectedString, actualString)
}
}
func BenchmarkSHA256HMAC(b *testing.B) {
key := []byte("d741787cc61851af045ccd37")
data := []byte("5912EEFD-59EC-43E3-ADB8-D5325AEC3271")
h, err := NewHMAC(key, EVP_SHA256)
if err != nil {
b.Fatalf("Unable to create new HMAC: %s", err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
if _, err := h.Write(data); err != nil {
b.Fatalf("Unable to write data into HMAC: %s", err)
}
var err error
if _, err = h.Final(); err != nil {
b.Fatalf("Error while finalizing HMAC: %s", err)
}
}
}
|
