Add byte serialization

test/pwd-box.test.ts

@@ -39,7 +39,7 @@ test("Encryption doesn't work with different context", async () => {
   expect(unboxed).toBeNull()
 })
 
-test('serialization', async () => {
+test('String serialization', async () => {
   const box = await PwdBox.encrypt(message, k1)
   expect(box).not.toBeNull()
 
@@ -53,3 +53,17 @@ test('serialization', async () => {
   expect(unboxed).not.toBeNull()
   expect(unboxed).toEqual(message)
 })
+test('Byte serialization', async () => {
+  const box = await PwdBox.encrypt(message, k1)
+  expect(box).not.toBeNull()
+
+  const ser = box!.toBytes()
+  const de = PwdBox.fromBytes(ser)
+
+  expect(de).not.toBeNull()
+  expect(de).toEqual(box)
+
+  const unboxed = await de!.decrypt(k1)
+  expect(unboxed).not.toBeNull()
+  expect(unboxed).toEqual(message)
+})