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
|
package cryptoutil
import (
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"math/big"
"testing"
)
func TestGenerateSubjectKeyID(t *testing.T) {
ecKey, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
if err != nil {
t.Fatal(err)
}
for _, test := range []struct {
testName string
pub crypto.PublicKey
}{
{"RSA", &rsa.PublicKey{N: big.NewInt(123), E: 65537}},
{"ECDSA", ecKey.Public()},
} {
test := test
t.Run(test.testName, func(t *testing.T) {
t.Parallel()
ski, err := GenerateSubjectKeyID(test.pub)
if err != nil {
t.Fatal(err)
}
if len(ski) != 20 {
t.Fatalf("unexpected subject public key identifier length: %d", len(ski))
}
ski2, err := GenerateSubjectKeyID(test.pub)
if err != nil {
t.Fatal(err)
}
if !testSKIEq(ski, ski2) {
t.Fatal("subject key identifier generation is not deterministic")
}
})
}
}
func testSKIEq(a, b []byte) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
|
