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-rw-r--r--whisper/whisperv2/message_test.go159
1 files changed, 159 insertions, 0 deletions
diff --git a/whisper/whisperv2/message_test.go b/whisper/whisperv2/message_test.go
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+++ b/whisper/whisperv2/message_test.go
@@ -0,0 +1,159 @@
+// Copyright 2014 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package whisperv2
+
+import (
+ "bytes"
+ "crypto/elliptic"
+ "testing"
+ "time"
+
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/crypto/secp256k1"
+)
+
+// Tests whether a message can be wrapped without any identity or encryption.
+func TestMessageSimpleWrap(t *testing.T) {
+ payload := []byte("hello world")
+
+ msg := NewMessage(payload)
+ if _, err := msg.Wrap(DefaultPoW, Options{}); err != nil {
+ t.Fatalf("failed to wrap message: %v", err)
+ }
+ if msg.Flags&signatureFlag != 0 {
+ t.Fatalf("signature flag mismatch: have %d, want %d", msg.Flags&signatureFlag, 0)
+ }
+ if len(msg.Signature) != 0 {
+ t.Fatalf("signature found for simple wrapping: 0x%x", msg.Signature)
+ }
+ if bytes.Compare(msg.Payload, payload) != 0 {
+ t.Fatalf("payload mismatch after wrapping: have 0x%x, want 0x%x", msg.Payload, payload)
+ }
+ if msg.TTL/time.Second != DefaultTTL/time.Second {
+ t.Fatalf("message TTL mismatch: have %v, want %v", msg.TTL, DefaultTTL)
+ }
+}
+
+// Tests whether a message can be signed, and wrapped in plain-text.
+func TestMessageCleartextSignRecover(t *testing.T) {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to create crypto key: %v", err)
+ }
+ payload := []byte("hello world")
+
+ msg := NewMessage(payload)
+ if _, err := msg.Wrap(DefaultPoW, Options{
+ From: key,
+ }); err != nil {
+ t.Fatalf("failed to sign message: %v", err)
+ }
+ if msg.Flags&signatureFlag != signatureFlag {
+ t.Fatalf("signature flag mismatch: have %d, want %d", msg.Flags&signatureFlag, signatureFlag)
+ }
+ if bytes.Compare(msg.Payload, payload) != 0 {
+ t.Fatalf("payload mismatch after signing: have 0x%x, want 0x%x", msg.Payload, payload)
+ }
+
+ pubKey := msg.Recover()
+ if pubKey == nil {
+ t.Fatalf("failed to recover public key")
+ }
+ p1 := elliptic.Marshal(secp256k1.S256(), key.PublicKey.X, key.PublicKey.Y)
+ p2 := elliptic.Marshal(secp256k1.S256(), pubKey.X, pubKey.Y)
+ if !bytes.Equal(p1, p2) {
+ t.Fatalf("public key mismatch: have 0x%x, want 0x%x", p2, p1)
+ }
+}
+
+// Tests whether a message can be encrypted and decrypted using an anonymous
+// sender (i.e. no signature).
+func TestMessageAnonymousEncryptDecrypt(t *testing.T) {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to create recipient crypto key: %v", err)
+ }
+ payload := []byte("hello world")
+
+ msg := NewMessage(payload)
+ envelope, err := msg.Wrap(DefaultPoW, Options{
+ To: &key.PublicKey,
+ })
+ if err != nil {
+ t.Fatalf("failed to encrypt message: %v", err)
+ }
+ if msg.Flags&signatureFlag != 0 {
+ t.Fatalf("signature flag mismatch: have %d, want %d", msg.Flags&signatureFlag, 0)
+ }
+ if len(msg.Signature) != 0 {
+ t.Fatalf("signature found for anonymous message: 0x%x", msg.Signature)
+ }
+
+ out, err := envelope.Open(key)
+ if err != nil {
+ t.Fatalf("failed to open encrypted message: %v", err)
+ }
+ if !bytes.Equal(out.Payload, payload) {
+ t.Errorf("payload mismatch: have 0x%x, want 0x%x", out.Payload, payload)
+ }
+}
+
+// Tests whether a message can be properly signed and encrypted.
+func TestMessageFullCrypto(t *testing.T) {
+ fromKey, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to create sender crypto key: %v", err)
+ }
+ toKey, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatalf("failed to create recipient crypto key: %v", err)
+ }
+
+ payload := []byte("hello world")
+ msg := NewMessage(payload)
+ envelope, err := msg.Wrap(DefaultPoW, Options{
+ From: fromKey,
+ To: &toKey.PublicKey,
+ })
+ if err != nil {
+ t.Fatalf("failed to encrypt message: %v", err)
+ }
+ if msg.Flags&signatureFlag != signatureFlag {
+ t.Fatalf("signature flag mismatch: have %d, want %d", msg.Flags&signatureFlag, signatureFlag)
+ }
+ if len(msg.Signature) == 0 {
+ t.Fatalf("no signature found for signed message")
+ }
+
+ out, err := envelope.Open(toKey)
+ if err != nil {
+ t.Fatalf("failed to open encrypted message: %v", err)
+ }
+ if !bytes.Equal(out.Payload, payload) {
+ t.Errorf("payload mismatch: have 0x%x, want 0x%x", out.Payload, payload)
+ }
+
+ pubKey := out.Recover()
+ if pubKey == nil {
+ t.Fatalf("failed to recover public key")
+ }
+ p1 := elliptic.Marshal(secp256k1.S256(), fromKey.PublicKey.X, fromKey.PublicKey.Y)
+ p2 := elliptic.Marshal(secp256k1.S256(), pubKey.X, pubKey.Y)
+ if !bytes.Equal(p1, p2) {
+ t.Fatalf("public key mismatch: have 0x%x, want 0x%x", p2, p1)
+ }
+}