src/client.py

@@ -11,6 +11,7 @@ import random
 import time
 import base64
 import json
+import pickle
 
 
 @asynccontextmanager
@@ -40,7 +41,7 @@ def init_db():
             """
             CREATE TABLE IF NOT EXISTS message (
                 id INTEGER PRIMARY KEY,
-                capsule TEXT,
+                capsule BLOB,
                 ct TEXT,
                 senderip TEXT
             );
@@ -113,29 +114,27 @@ async def receive_messages(message: C):
     return:
     status_code
     """
-    a, b = message.Tuple
-    C_tuple = (a, b)
-    ip = message.ip
-    if not C_tuple or not ip:
+    
+    if not message.Tuple or not message.ip:
         raise HTTPException(status_code=400, detail="Invalid input data")
 
-    C_capsule = C_tuple[0]
-    C_ct = C_tuple[1]
+    C_capsule, C_ct = message.Tuple
+    ip = message.ip
     
-    if not Checkcapsule(C_capsule):
-        raise HTTPException(status_code=400, detail="Invalid capsule")
+    # Serialization
+    bin_C_capsule = pickle.dumps(C_capsule)
 
     # insert record into database
-    with sqlite3.connect("message.db") as db:
+    with sqlite3.connect("client.db") as db:
         try:
             db.execute(
                 """
                 INSERT INTO message 
-                (capsule_column, ct_column, ip_column) 
+                (capsule, ct, senderip) 
                 VALUES 
                 (?, ?, ?)
                 """,
-                (C_capsule, C_ct, ip),
+                (bin_C_capsule, C_ct, ip),
             )
             db.commit()
             await check_merge(C_ct, ip)
@@ -175,7 +174,13 @@ async def check_merge(ct: int, ip: str):
         pk_sender, T = result[0]  # result[0] = (pk, threshold)
 
     if len(cfrag_cts) >= T:
-        cfrags = mergecfrag(cfrag_cts)
+        # Deserialization
+        temp_cfrag_cts = []
+        for i in cfrag_cts:
+            capsule = pickle.loads(i[0])
+            temp_cfrag_cts.append((capsule, i[1]))
+            
+        cfrags = mergecfrag(temp_cfrag_cts)
         message = DecryptFrags(sk, pk, pk_sender, cfrags)  # type: ignore
         node_response = True
 
@@ -199,7 +204,7 @@ async def send_messages(
     rk_list = GenerateReKey(sk, pk_B, len(node_ips), shreshold, tuple(id_list))  # type: ignore
 
     capsule, ct = Encrypt(pk, message)  # type: ignore
-    #capsule_ct = (capsule, int.from_bytes(ct))
+    # capsule_ct = (capsule, int.from_bytes(ct))
 
     for i in range(len(node_ips)):
         url = "http://" + node_ips[i][0] + ":8001" + "/user_src"

src/node.py

@@ -78,7 +78,7 @@ class Req(BaseModel):
     dest_ip: str
     capsule: capsule
     ct: int
-    rk: Any
+    rk: list
 
 
 @app.post("/user_src")  # 接收用户1发送的信息
@@ -93,6 +93,7 @@ async def user_src(message: Req):
             "rk": rk_list[i],
         }
     """
+    print("node: ", message)
     source_ip = message.source_ip
     dest_ip = message.dest_ip
     capsule = message.capsule
@@ -113,7 +114,7 @@ async def send_user_des_message(source_ip: str, dest_ip: str, re_message):  #
     response = requests.post(
         "http://" + dest_ip + ":8002" + "/receive_messages", json=data
     )
-    print(response.text)
+    print("send stauts:" ,response.text)
 
 
 if __name__ == "__main__":