forked from docker/libtrust
/
jsonsign_test.go
368 lines (319 loc) · 9.45 KB
/
jsonsign_test.go
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package libtrust
import (
"bytes"
"crypto/x509"
"encoding/json"
"fmt"
"testing"
"github.com/docker/libtrust/testutil"
)
func createTestJSON(sigKey string, indent string) (map[string]interface{}, []byte) {
testMap := map[string]interface{}{
"name": "dmcgowan/mycontainer",
"config": map[string]interface{}{
"ports": []int{9101, 9102},
"run": "/bin/echo \"Hello\"",
},
"layers": []string{
"2893c080-27f5-11e4-8c21-0800200c9a66",
"c54bc25b-fbb2-497b-a899-a8bc1b5b9d55",
"4d5d7e03-f908-49f3-a7f6-9ba28dfe0fb4",
"0b6da891-7f7f-4abf-9c97-7887549e696c",
"1d960389-ae4f-4011-85fd-18d0f96a67ad",
},
}
formattedSection := `{"config":{"ports":[9101,9102],"run":"/bin/echo \"Hello\""},"layers":["2893c080-27f5-11e4-8c21-0800200c9a66","c54bc25b-fbb2-497b-a899-a8bc1b5b9d55","4d5d7e03-f908-49f3-a7f6-9ba28dfe0fb4","0b6da891-7f7f-4abf-9c97-7887549e696c","1d960389-ae4f-4011-85fd-18d0f96a67ad"],"name":"dmcgowan/mycontainer","%s":[{"header":{`
formattedSection = fmt.Sprintf(formattedSection, sigKey)
if indent != "" {
buf := bytes.NewBuffer(nil)
json.Indent(buf, []byte(formattedSection), "", indent)
return testMap, buf.Bytes()
}
return testMap, []byte(formattedSection)
}
func TestSignJSON(t *testing.T) {
key, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating EC key: %s", err)
}
testMap, _ := createTestJSON("buildSignatures", " ")
indented, err := json.MarshalIndent(testMap, "", " ")
if err != nil {
t.Fatalf("Marshall error: %s", err)
}
js, err := NewJSONSignature(indented)
if err != nil {
t.Fatalf("Error creating JSON signature: %s", err)
}
err = js.Sign(key)
if err != nil {
t.Fatalf("Error signing content: %s", err)
}
keys, err := js.Verify()
if err != nil {
t.Fatalf("Error verifying signature: %s", err)
}
if len(keys) != 1 {
t.Fatalf("Error wrong number of keys returned")
}
if keys[0].KeyID() != key.KeyID() {
t.Fatalf("Unexpected public key returned")
}
}
func TestSignMap(t *testing.T) {
key, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating EC key: %s", err)
}
testMap, _ := createTestJSON("buildSignatures", " ")
js, err := NewJSONSignatureFromMap(testMap)
if err != nil {
t.Fatalf("Error creating JSON signature: %s", err)
}
err = js.Sign(key)
if err != nil {
t.Fatalf("Error signing JSON signature: %s", err)
}
keys, err := js.Verify()
if err != nil {
t.Fatalf("Error verifying signature: %s", err)
}
if len(keys) != 1 {
t.Fatalf("Error wrong number of keys returned")
}
if keys[0].KeyID() != key.KeyID() {
t.Fatalf("Unexpected public key returned")
}
}
func TestFormattedJson(t *testing.T) {
key, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating EC key: %s", err)
}
testMap, firstSection := createTestJSON("buildSignatures", " ")
indented, err := json.MarshalIndent(testMap, "", " ")
if err != nil {
t.Fatalf("Marshall error: %s", err)
}
js, err := NewJSONSignature(indented)
if err != nil {
t.Fatalf("Error creating JSON signature: %s", err)
}
err = js.Sign(key)
if err != nil {
t.Fatalf("Error signing content: %s", err)
}
b, err := js.PrettySignature("buildSignatures")
if err != nil {
t.Fatalf("Error signing map: %s", err)
}
if bytes.Compare(b[:len(firstSection)], firstSection) != 0 {
t.Fatalf("Wrong signed value\nExpected:\n%s\nActual:\n%s", firstSection, b[:len(firstSection)])
}
parsed, err := ParsePrettySignature(b, "buildSignatures")
if err != nil {
t.Fatalf("Error parsing formatted signature: %s", err)
}
keys, err := parsed.Verify()
if err != nil {
t.Fatalf("Error verifying signature: %s", err)
}
if len(keys) != 1 {
t.Fatalf("Error wrong number of keys returned")
}
if keys[0].KeyID() != key.KeyID() {
t.Fatalf("Unexpected public key returned")
}
var unmarshalled map[string]interface{}
err = json.Unmarshal(b, &unmarshalled)
if err != nil {
t.Fatalf("Could not unmarshall after parse: %s", err)
}
}
func TestFormattedFlatJson(t *testing.T) {
key, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating EC key: %s", err)
}
testMap, firstSection := createTestJSON("buildSignatures", "")
unindented, err := json.Marshal(testMap)
if err != nil {
t.Fatalf("Marshall error: %s", err)
}
js, err := NewJSONSignature(unindented)
if err != nil {
t.Fatalf("Error creating JSON signature: %s", err)
}
err = js.Sign(key)
if err != nil {
t.Fatalf("Error signing JSON signature: %s", err)
}
b, err := js.PrettySignature("buildSignatures")
if err != nil {
t.Fatalf("Error signing map: %s", err)
}
if bytes.Compare(b[:len(firstSection)], firstSection) != 0 {
t.Fatalf("Wrong signed value\nExpected:\n%s\nActual:\n%s", firstSection, b[:len(firstSection)])
}
parsed, err := ParsePrettySignature(b, "buildSignatures")
if err != nil {
t.Fatalf("Error parsing formatted signature: %s", err)
}
keys, err := parsed.Verify()
if err != nil {
t.Fatalf("Error verifying signature: %s", err)
}
if len(keys) != 1 {
t.Fatalf("Error wrong number of keys returned")
}
if keys[0].KeyID() != key.KeyID() {
t.Fatalf("Unexpected public key returned")
}
}
func TestJWS(t *testing.T) {
key, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating EC key: %s", err)
}
testMap, firstSection := createTestJSON("buildSignatures", " ")
indented, err := json.MarshalIndent(testMap, "", " ")
if err != nil {
t.Fatalf("Marshall error: %s", err)
}
js, err := NewJSONSignature(indented)
if err != nil {
t.Fatalf("Error creating JSON signature: %s", err)
}
err = js.Sign(key)
if err != nil {
t.Fatalf("Error signing content: %s", err)
}
b, err := js.JWS()
if err != nil {
t.Fatalf("Error signing map: %s", err)
}
if bytes.Compare(b[:len(firstSection)], firstSection) != 0 {
t.Fatalf("Wrong signed value\nExpected:\n%s\nActual:\n%s", firstSection, b[:len(firstSection)])
}
parsed, err := ParseJWS(b)
if err != nil {
t.Fatalf("Error parsing formatted signature: %s", err)
}
bCopy := make([]byte, len(b))
copy(bCopy, b)
var modified map[string]interface{}
json.Unmarshal(bCopy, &modified)
delete(modified, "signatures")
bNoSigs, _ := json.Marshal(modified)
_, err = ParseJWS(bNoSigs)
if err == nil {
t.Fatalf("Expected error parsing JWS without signatures")
}
bCopy[0] = '['
_, err = ParseJWS(bCopy)
if err == nil {
t.Fatalf("Expected error parsing invalid JSON")
}
keys, err := parsed.Verify()
if err != nil {
t.Fatalf("Error verifying signature: %s", err)
}
if len(keys) != 1 {
t.Fatalf("Error wrong number of keys returned")
}
if keys[0].KeyID() != key.KeyID() {
t.Fatalf("Unexpected public key returned")
}
var unmarshalled map[string]interface{}
err = json.Unmarshal(b, &unmarshalled)
if err != nil {
t.Fatalf("Could not unmarshall after parse: %s", err)
}
}
func generateTrustChain(t *testing.T, key PrivateKey, ca *x509.Certificate) (PrivateKey, []*x509.Certificate) {
parent := ca
parentKey := key
chain := make([]*x509.Certificate, 6)
for i := 5; i > 0; i-- {
intermediatekey, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generate key: %s", err)
}
chain[i], err = testutil.GenerateIntermediate(intermediatekey.CryptoPublicKey(), parentKey.CryptoPrivateKey(), parent)
if err != nil {
t.Fatalf("Error generating intermdiate certificate: %s", err)
}
parent = chain[i]
parentKey = intermediatekey
}
trustKey, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generate key: %s", err)
}
chain[0], err = testutil.GenerateTrustCert(trustKey.CryptoPublicKey(), parentKey.CryptoPrivateKey(), parent)
if err != nil {
t.Fatalf("Error generate trust cert: %s", err)
}
return trustKey, chain
}
func TestChainVerify(t *testing.T) {
caKey, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating key: %s", err)
}
ca, err := testutil.GenerateTrustCA(caKey.CryptoPublicKey(), caKey.CryptoPrivateKey())
if err != nil {
t.Fatalf("Error generating ca: %s", err)
}
trustKey, chain := generateTrustChain(t, caKey, ca)
testMap, _ := createTestJSON("verifySignatures", " ")
js, err := NewJSONSignatureFromMap(testMap)
if err != nil {
t.Fatalf("Error creating JSONSignature from map: %s", err)
}
err = js.SignWithChain(trustKey, chain)
if err != nil {
t.Fatalf("Error signing with chain: %s", err)
}
pool := x509.NewCertPool()
pool.AddCert(ca)
chains, err := js.VerifyChains(pool)
if err != nil {
t.Fatalf("Error verifying content: %s", err)
}
if len(chains) != 1 {
t.Fatalf("Unexpected chains length: %d", len(chains))
}
if len(chains[0]) != 7 {
t.Fatalf("Unexpected chain length: %d", len(chains[0]))
}
}
func TestInvalidChain(t *testing.T) {
caKey, err := GenerateECP256PrivateKey()
if err != nil {
t.Fatalf("Error generating key: %s", err)
}
ca, err := testutil.GenerateTrustCA(caKey.CryptoPublicKey(), caKey.CryptoPrivateKey())
if err != nil {
t.Fatalf("Error generating ca: %s", err)
}
trustKey, chain := generateTrustChain(t, caKey, ca)
testMap, _ := createTestJSON("verifySignatures", " ")
js, err := NewJSONSignatureFromMap(testMap)
if err != nil {
t.Fatalf("Error creating JSONSignature from map: %s", err)
}
err = js.SignWithChain(trustKey, chain[:5])
if err != nil {
t.Fatalf("Error signing with chain: %s", err)
}
pool := x509.NewCertPool()
pool.AddCert(ca)
chains, err := js.VerifyChains(pool)
if err == nil {
t.Fatalf("Expected error verifying with bad chain")
}
if len(chains) != 0 {
t.Fatalf("Unexpected chains returned from invalid verify")
}
}