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authorPéter Szilágyi <peterke@gmail.com>2015-04-21 17:13:57 +0800
committerPéter Szilágyi <peterke@gmail.com>2015-04-28 15:49:04 +0800
commit87447f9f3f99cc59d58b029fff39fc39142f1281 (patch)
tree8ae1ea6692004e7a8e72626103da35aa3de52ede /whisper
parent7f48eb8737878e352a65475382532db26f9fbc52 (diff)
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whisper: fix payload loss in case of plaintext decrypt
Diffstat (limited to 'whisper')
-rw-r--r--whisper/envelope_test.go104
-rw-r--r--whisper/message.go9
2 files changed, 109 insertions, 4 deletions
diff --git a/whisper/envelope_test.go b/whisper/envelope_test.go
index 3117284f1..b64767b2e 100644
--- a/whisper/envelope_test.go
+++ b/whisper/envelope_test.go
@@ -4,6 +4,9 @@ import (
"bytes"
"testing"
"time"
+
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/crypto/ecies"
)
func TestEnvelopeOpen(t *testing.T) {
@@ -16,7 +19,7 @@ func TestEnvelopeOpen(t *testing.T) {
}
opened, err := envelope.Open(nil)
if err != nil {
- t.Fatalf("failed to open envelope: %v.", err)
+ t.Fatalf("failed to open envelope: %v", err)
}
if opened.Flags != message.Flags {
t.Fatalf("flags mismatch: have %d, want %d", opened.Flags, message.Flags)
@@ -38,3 +41,102 @@ func TestEnvelopeOpen(t *testing.T) {
t.Fatalf("message hash mismatch: have 0x%x, want 0x%x", opened.Hash, envelope.Hash())
}
}
+
+func TestEnvelopeAnonymousOpenUntargeted(t *testing.T) {
+ payload := []byte("hello envelope")
+ envelope, err := NewMessage(payload).Wrap(DefaultPoW, Options{})
+ if err != nil {
+ t.Fatalf("failed to wrap message: %v", err)
+ }
+ opened, err := envelope.Open(nil)
+ if err != nil {
+ t.Fatalf("failed to open envelope: %v", err)
+ }
+ if opened.To != nil {
+ t.Fatalf("recipient mismatch: have 0x%x, want nil", opened.To)
+ }
+ if bytes.Compare(opened.Payload, payload) != 0 {
+ t.Fatalf("payload mismatch: have 0x%x, want 0x%x", opened.Payload, payload)
+ }
+}
+
+func TestEnvelopeAnonymousOpenTargeted(t *testing.T) {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to generate test identity: %v", err)
+ }
+
+ payload := []byte("hello envelope")
+ envelope, err := NewMessage(payload).Wrap(DefaultPoW, Options{
+ To: &key.PublicKey,
+ })
+ if err != nil {
+ t.Fatalf("failed to wrap message: %v", err)
+ }
+ opened, err := envelope.Open(nil)
+ if err != nil {
+ t.Fatalf("failed to open envelope: %v", err)
+ }
+ if opened.To != nil {
+ t.Fatalf("recipient mismatch: have 0x%x, want nil", opened.To)
+ }
+ if bytes.Compare(opened.Payload, payload) == 0 {
+ t.Fatalf("payload match, should have been encrypted: 0x%x", opened.Payload)
+ }
+}
+
+func TestEnvelopeIdentifiedOpenUntargeted(t *testing.T) {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to generate test identity: %v", err)
+ }
+
+ payload := []byte("hello envelope")
+ envelope, err := NewMessage(payload).Wrap(DefaultPoW, Options{})
+ if err != nil {
+ t.Fatalf("failed to wrap message: %v", err)
+ }
+ opened, err := envelope.Open(key)
+ switch err {
+ case nil:
+ t.Fatalf("envelope opened with bad key: %v", opened)
+
+ case ecies.ErrInvalidPublicKey:
+ // Ok, key mismatch but opened
+
+ default:
+ t.Fatalf("failed to open envelope: %v", err)
+ }
+
+ if opened.To != nil {
+ t.Fatalf("recipient mismatch: have 0x%x, want nil", opened.To)
+ }
+ if bytes.Compare(opened.Payload, payload) != 0 {
+ t.Fatalf("payload mismatch: have 0x%x, want 0x%x", opened.Payload, payload)
+ }
+}
+
+func TestEnvelopeIdentifiedOpenTargeted(t *testing.T) {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to generate test identity: %v", err)
+ }
+
+ payload := []byte("hello envelope")
+ envelope, err := NewMessage(payload).Wrap(DefaultPoW, Options{
+ To: &key.PublicKey,
+ })
+ if err != nil {
+ t.Fatalf("failed to wrap message: %v", err)
+ }
+ opened, err := envelope.Open(key)
+ if err != nil {
+ t.Fatalf("failed to open envelope: %v", err)
+ }
+ if opened.To != nil {
+ t.Fatalf("recipient mismatch: have 0x%x, want nil", opened.To)
+ }
+ if bytes.Compare(opened.Payload, payload) != 0 {
+ t.Fatalf("payload mismatch: have 0x%x, want 0x%x", opened.Payload, payload)
+ }
+}
diff --git a/whisper/message.go b/whisper/message.go
index 2b92d515c..a80380a92 100644
--- a/whisper/message.go
+++ b/whisper/message.go
@@ -120,9 +120,12 @@ func (self *Message) encrypt(key *ecdsa.PublicKey) (err error) {
}
// decrypt decrypts an encrypted payload with a private key.
-func (self *Message) decrypt(key *ecdsa.PrivateKey) (err error) {
- self.Payload, err = crypto.Decrypt(key, self.Payload)
- return
+func (self *Message) decrypt(key *ecdsa.PrivateKey) error {
+ cleartext, err := crypto.Decrypt(key, self.Payload)
+ if err == nil {
+ self.Payload = cleartext
+ }
+ return err
}
// hash calculates the SHA3 checksum of the message flags and payload.