Updated whisper messages to new crypto api + added tests

whisper/messages_test.go

@@ -0,0 +1,51 @@
+package whisper
+
+import (
+	"bytes"
+	"crypto/elliptic"
+	"fmt"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/crypto"
+)
+
+func TestSign(t *testing.T) {
+	prv, _ := crypto.GenerateKey()
+	msg := NewMessage([]byte("hello world"))
+	msg.sign(prv)
+
+	pubKey := msg.Recover()
+	p1 := elliptic.Marshal(crypto.S256(), prv.PublicKey.X, prv.PublicKey.Y)
+	p2 := elliptic.Marshal(crypto.S256(), pubKey.X, pubKey.Y)
+
+	if !bytes.Equal(p1, p2) {
+		t.Error("recovered pub key did not match")
+	}
+}
+
+func TestMessageEncryptDecrypt(t *testing.T) {
+	prv1, _ := crypto.GenerateKey()
+	prv2, _ := crypto.GenerateKey()
+
+	data := []byte("hello world")
+	msg := NewMessage(data)
+	envelope, err := msg.Seal(DefaultPow, Opts{
+		From: prv1,
+		To:   &prv2.PublicKey,
+	})
+	if err != nil {
+		fmt.Println(err)
+		t.FailNow()
+	}
+
+	msg1, err := envelope.Open(prv2)
+	if err != nil {
+		fmt.Println(err)
+		t.FailNow()
+	}
+
+	if !bytes.Equal(msg1.Payload, data) {
+		fmt.Println("encryption error. data did not match")
+		t.FailNow()
+	}
+}