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|
package scep
import (
"crypto"
_ "crypto/sha256"
"crypto/x509"
"encoding/hex"
"testing"
)
func TestFingerprintCertsSelector(t *testing.T) {
t.Parallel()
for _, test := range []struct {
testName string
hashType crypto.Hash
hash string
certRaw []byte
expectedCount int
}{
{
"null SHA-256 hash",
crypto.SHA256,
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
nil,
1,
},
{
"3 byte SHA-256 hash",
crypto.SHA256,
"039058c6f2c0cb492c533b0a4d14ef77cc0f78abccced5287d84a1a2011cfb81",
[]byte{1, 2, 3},
1,
},
{
"mismatched hash",
crypto.SHA256,
"8db07061ebb4cd0b0cd00825b363e5fb7f8131d8ff2c1fd70d03fa4fd6dc3785",
[]byte{4, 5, 6},
0,
},
} {
test := test
t.Run(test.testName, func(t *testing.T) {
t.Parallel()
fakeCerts := []*x509.Certificate{{Raw: test.certRaw}}
hash, err := hex.DecodeString(test.hash)
if err != nil {
t.Fatal(err)
}
if want, have := test.hashType.Size(), len(hash); want != have {
t.Errorf("invalid input hash length, want: %d have: %d", want, have)
}
selected := FingerprintCertsSelector(test.hashType, hash).SelectCerts(fakeCerts)
if want, have := test.expectedCount, len(selected); want != have {
t.Errorf("wrong selected certs count, want: %d have: %d", want, have)
}
})
}
}
func TestEnciphermentCertsSelector(t *testing.T) {
t.Parallel()
for _, test := range []struct {
testName string
certs []*x509.Certificate
expectedSelectedCerts []*x509.Certificate
}{
{
"empty certificates list",
[]*x509.Certificate{},
[]*x509.Certificate{},
},
{
"non-empty certificates list",
[]*x509.Certificate{
{KeyUsage: x509.KeyUsageKeyEncipherment},
{KeyUsage: x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageDigitalSignature},
{},
},
[]*x509.Certificate{
{KeyUsage: x509.KeyUsageKeyEncipherment},
{KeyUsage: x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDataEncipherment},
},
},
} {
test := test
t.Run(test.testName, func(t *testing.T) {
t.Parallel()
selected := EnciphermentCertsSelector().SelectCerts(test.certs)
if !certsKeyUsagesEq(selected, test.expectedSelectedCerts) {
t.Fatal("selected and expected certificates did not match")
}
})
}
}
func TestNopCertsSelector(t *testing.T) {
t.Parallel()
for _, test := range []struct {
testName string
certs []*x509.Certificate
expectedSelectedCerts []*x509.Certificate
}{
{
"empty certificates list",
[]*x509.Certificate{},
[]*x509.Certificate{},
},
{
"non-empty certificates list",
[]*x509.Certificate{
{KeyUsage: x509.KeyUsageKeyEncipherment},
{KeyUsage: x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageDigitalSignature},
{},
},
[]*x509.Certificate{
{KeyUsage: x509.KeyUsageKeyEncipherment},
{KeyUsage: x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDataEncipherment},
{KeyUsage: x509.KeyUsageDigitalSignature},
{},
},
},
} {
test := test
t.Run(test.testName, func(t *testing.T) {
t.Parallel()
selected := NopCertsSelector().SelectCerts(test.certs)
if !certsKeyUsagesEq(selected, test.expectedSelectedCerts) {
t.Fatal("selected and expected certificates did not match")
}
})
}
}
// certsKeyUsagesEq returns true if certs in a have the same key usages
// of certs in b and in the same order.
func certsKeyUsagesEq(a, b []*x509.Certificate) bool {
if len(a) != len(b) {
return false
}
for i, cert := range a {
if cert.KeyUsage != b[i].KeyUsage {
return false
}
}
return true
}
|
