Support SPKI Fingerprint Pinning

Support SPKI Fingerprint Pinning for TLSObject

transport/internet/tls/pin_test.go

@@ -1,6 +1,9 @@
 package tls
 
 import (
+	"crypto/x509"
+	"encoding/base64"
+	"encoding/pem"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -108,3 +111,89 @@ tzY45d4mjPs0fKCFKSsVM6YT0tX4NwIKsOaeQg30WLtRyDwYm6ma/a/UUUS0FloZ
 		assert.Equal(t, "FW3SVMCL6um2wVltOdgJ3DpI82aredw83YoCblkMkVM=", hash)
 	})
 }
+
+func TestCalculateCertPublicKeyHash(t *testing.T) {
+	const Single = `-----BEGIN CERTIFICATE-----
+MIINWTCCC0GgAwIBAgITLQAxbA/A+lw/1sLDAAAAADFsDzANBgkqhkiG9w0BAQsF
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+-----END CERTIFICATE-----
+`
+	t.Run("singlepublickey", func(t *testing.T) {
+		block, _ := pem.Decode([]byte(Single))
+		cert, err := x509.ParseCertificate(block.Bytes)
+		assert.Equal(t, err, nil)
+		hash := GenerateCertPublicKeyHash(cert)
+		hashstr := base64.StdEncoding.EncodeToString(hash)
+		assert.Equal(t, "xI/4mNm8xF9uDT4vA9G1+aKAaybwNlkRECnN8vGAHTM=", hashstr)
+	})
+}