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|
package dsse
import (
"context"
"crypto"
"errors"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestEnvelopeVerifier_Verify_HandlesNil(t *testing.T) {
verifier, err := NewEnvelopeVerifier(&mockVerifier{})
assert.NoError(t, err)
acceptedKeys, err := verifier.Verify(context.TODO(), nil)
assert.Empty(t, acceptedKeys)
assert.EqualError(t, err, "cannot verify a nil envelope")
}
type mockVerifier struct {
returnErr error
}
func (m *mockVerifier) Verify(ctx context.Context, data, sig []byte) error {
if m.returnErr != nil {
return m.returnErr
}
return nil
}
func (m *mockVerifier) KeyID() (string, error) {
return "mock", errors.New("Unsupported keyid")
}
func (m *mockVerifier) Public() crypto.PublicKey {
return "mock-public"
}
// Test against the example in the protocol specification:
// https://github.com/secure-systems-lab/dsse/blob/master/protocol.md
func TestVerify(t *testing.T) {
var keyID = "test key 123"
var payloadType = "http://example.com/HelloWorld"
e := Envelope{
Payload: "aGVsbG8gd29ybGQ=",
PayloadType: payloadType,
Signatures: []Signature{
{
KeyID: keyID,
Sig: "Cc3RkvYsLhlaFVd+d6FPx4ZClhqW4ZT0rnCYAfv6/ckoGdwT7g/blWNpOBuL/tZhRiVFaglOGTU8GEjm4aEaNA==",
},
},
}
ev, err := NewEnvelopeVerifier(&mockVerifier{})
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := ev.Verify(context.TODO(), &e)
// Now verify
assert.Nil(t, err, "unexpected error")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, "", "unexpected keyid")
// Now try an error
ev, err = NewEnvelopeVerifier(&mockVerifier{returnErr: errors.New("uh oh")})
assert.Nil(t, err, "unexpected error")
_, err = ev.Verify(context.TODO(), &e)
// Now verify
assert.Error(t, err)
}
func TestVerifyOneProvider(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var ns nilSignerVerifier
signer, err := NewEnvelopeSigner(ns)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(ns)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "unexpected error")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, "nil", "unexpected keyid")
}
func TestVerifyMultipleProvider(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var ns nilSignerVerifier
var null nullSignerVerifier
signer, err := NewEnvelopeSigner(ns, null)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(ns, null)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "unexpected error")
assert.Len(t, acceptedKeys, 2, "unexpected keys")
}
func TestVerifyMultipleProviderThreshold(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var ns nilSignerVerifier
var null nullSignerVerifier
signer, err := NewEnvelopeSigner(ns, null)
assert.Nil(t, err)
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewMultiEnvelopeVerifier(2, ns, null)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "unexpected error")
assert.Len(t, acceptedKeys, 2, "unexpected keys")
}
func TestVerifyMultipleProviderThresholdErr(t *testing.T) {
var ns nilSignerVerifier
var null nullSignerVerifier
_, err := NewMultiEnvelopeVerifier(3, ns, null)
assert.Equal(t, errThreshold, err, "wrong error")
_, err = NewMultiEnvelopeVerifier(0, ns, null)
assert.Equal(t, errThreshold, err, "wrong error")
}
func TestVerifyErr(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var errsv errSignerVerifier
signer, err := NewEnvelopeSigner(errsv)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(errsv)
assert.Nil(t, err, "unexpected error")
_, err = verifier.Verify(context.TODO(), env)
assert.Equal(t, errVerify, err, "wrong error")
}
func TestBadVerifier(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var badv badverifier
signer, err := NewEnvelopeSigner(badv)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(badv)
assert.Nil(t, err, "unexpected error")
_, err = verifier.Verify(context.TODO(), env)
assert.NotNil(t, err, "expected error")
}
func TestVerifyNoSig(t *testing.T) {
var badv badverifier
verifier, err := NewEnvelopeVerifier(badv)
assert.Nil(t, err, "unexpected error")
env := &Envelope{}
_, err = verifier.Verify(context.TODO(), env)
assert.Equal(t, ErrNoSignature, err, "wrong error")
}
func TestVerifyBadBase64(t *testing.T) {
var badv badverifier
verifier, err := NewEnvelopeVerifier(badv)
assert.Nil(t, err, "unexpected error")
expectedErr := fmt.Errorf("unable to base64 decode payload (is payload in the right format?)")
t.Run("Payload", func(t *testing.T) {
env := &Envelope{
Payload: "Not base 64",
Signatures: []Signature{
{},
},
}
_, err := verifier.Verify(context.TODO(), env)
assert.IsType(t, expectedErr, err, "wrong error")
})
t.Run("Signature", func(t *testing.T) {
env := &Envelope{
Payload: "cGF5bG9hZAo=",
Signatures: []Signature{
{
Sig: "not base 64",
},
},
}
_, err := verifier.Verify(context.TODO(), env)
assert.IsType(t, expectedErr, err, "wrong error")
})
}
func TestVerifyNoMatch(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var ns nilSignerVerifier
var null nullSignerVerifier
verifier, err := NewEnvelopeVerifier(ns, null)
assert.Nil(t, err, "unexpected error")
env := &Envelope{
PayloadType: payloadType,
Payload: "cGF5bG9hZAo=",
Signatures: []Signature{
{
KeyID: "not found",
Sig: "cGF5bG9hZAo=",
},
},
}
_, err = verifier.Verify(context.TODO(), env)
assert.NotNil(t, err, "expected error")
}
type interceptSignerVerifier struct {
keyID string
verifyRes bool
verifyCalled bool
}
func (i *interceptSignerVerifier) Sign(ctx context.Context, data []byte) ([]byte, error) {
return data, nil
}
func (i *interceptSignerVerifier) Verify(ctx context.Context, data, sig []byte) error {
i.verifyCalled = true
if i.verifyRes {
return nil
}
return errVerify
}
func (i *interceptSignerVerifier) KeyID() (string, error) {
return i.keyID, nil
}
func (i *interceptSignerVerifier) Public() crypto.PublicKey {
return "intercept-public"
}
func TestVerifyOneFail(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var s1 = &interceptSignerVerifier{
keyID: "i1",
verifyRes: true,
}
var s2 = &interceptSignerVerifier{
keyID: "i2",
verifyRes: false,
}
signer, err := NewEnvelopeSigner(s1, s2)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(s1, s2)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "expected error")
assert.True(t, s1.verifyCalled, "verify not called")
assert.True(t, s2.verifyCalled, "verify not called")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, "i1", "unexpected keyid")
}
func TestVerifySameKeyID(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var s1 = &interceptSignerVerifier{
keyID: "i1",
verifyRes: true,
}
var s2 = &interceptSignerVerifier{
keyID: "i1",
verifyRes: true,
}
signer, err := NewEnvelopeSigner(s1, s2)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(s1, s2)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "expected error")
assert.True(t, s1.verifyCalled, "verify not called")
assert.True(t, s2.verifyCalled, "verify not called")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, "i1", "unexpected keyid")
}
func TestVerifyEmptyKeyID(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var s1 = &interceptSignerVerifier{
keyID: "",
verifyRes: true,
}
var s2 = &interceptSignerVerifier{
keyID: "",
verifyRes: true,
}
signer, err := NewEnvelopeSigner(s1, s2)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(s1, s2)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "expected error")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, "", "unexpected keyid")
}
func TestVerifyPublicKeyID(t *testing.T) {
var payloadType = "http://example.com/HelloWorld"
var payload = "hello world"
var keyID = "SHA256:f4AuBLdH4Lj/dIuwAUXXebzoI9B/cJ4iSQ3/qByIl4M"
var s1 = &ecdsaSignerVerifier{
keyID: "",
key: newEcdsaKey(),
}
var s2 = &ecdsaSignerVerifier{
keyID: "",
key: newEcdsaKey(),
}
signer, err := NewEnvelopeSigner(s1, s2)
assert.Nil(t, err, "unexpected error")
env, err := signer.SignPayload(context.TODO(), payloadType, []byte(payload))
assert.Nil(t, err, "sign failed")
verifier, err := NewEnvelopeVerifier(s1, s2)
assert.Nil(t, err, "unexpected error")
acceptedKeys, err := verifier.Verify(context.TODO(), env)
assert.Nil(t, err, "expected error")
assert.Len(t, acceptedKeys, 1, "unexpected keys")
assert.Equal(t, acceptedKeys[0].KeyID, keyID, "unexpected keyid")
}
|
