able to encrypt and decrypt in layers

debug/test_encLayers.cc

@@ -56,20 +56,47 @@ static void init(){
     globalConn = new Connect(ci.server, ci.user, ci.passwd, ci.port);
 }
 
+static
+Item *
+encrypt_item_layers_raw(const Item &i, uint64_t IV, std::vector<std::unique_ptr<EncLayer> > &enc_layers) {
+    const Item *enc = &i;
+    Item *new_enc = NULL;
+    for (const auto &it : enc_layers) {
+        new_enc = it->encrypt(*enc, IV);
+        assert(new_enc);
+        enc = new_enc;
+    }
+    assert(new_enc && new_enc != &i);
+    return new_enc;
+}
+
+
+static Item *
+decrypt_item_layers_raw(const Item &i, uint64_t IV, std::vector<std::unique_ptr<EncLayer> > &enc_layers) {
+    const Item *dec = &i;
+    Item *out_i = NULL;
+    for (auto it = enc_layers.rbegin(); it != enc_layers.rend(); ++it) {
+        out_i = (*it)->decrypt(*dec, IV);
+        assert(out_i);
+        dec = out_i;
+    }
+    assert(out_i && out_i != &i);
+    return out_i;
+}
+
 
 int
 main() {
     init();
     create_embedded_thd(0);
+
     Create_field *f = new Create_field;
     f->sql_type = MYSQL_TYPE_LONG;
 
     std::unique_ptr<EncLayer> el(EncLayerFactory::encLayer(oDET,SECLEVEL::RND,*f,"HEHE"));
 
     auto levels = CURRENT_NUM_LAYOUT[oDET];
-
     std::vector<std::unique_ptr<EncLayer> > layers;
-
     const Create_field * newcf = f;
     onion o = oDET;
     for (auto l: levels) {
@@ -80,8 +107,15 @@ main() {
         newcf = el->newCreateField(oldcf);
         layers.push_back(std::move(el));
     }
+    Item * in = NULL;
+    encrypt_item_layers_raw(*in,0,layers);
+    decrypt_item_layers_raw(*in,0,layers);
     (void)el;
     (void)f;
+
+    //Then we should encrypt and decrypt.
+
+
     return 0;
 }