Update tutorials for encryption model

tutorials/encrypt_model/encrypt.py

@@ -0,0 +1,33 @@
+import fastdeploy as fd
+import os
+
+def parse_arguments():
+    import argparse
+    import ast
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--model", required=True, help="Path of model directory.")
+    return parser.parse_args()
+
+if __name__ == "__main__":
+    args = parse_arguments()
+    model_file = os.path.join(args.model, "inference.pdmodel")
+    params_file = os.path.join(args.model, "inference.pdiparams")
+    config_file = os.path.join(args.model, "inference_cls.yaml")
+    model_buffer = open(model_file, 'rb')
+    params_buffer = open(params_file, 'rb')
+    encrypted_model, key = fd.encryption.encrypt(model_buffer.read())
+    encrypted_params, key= fd.encryption.encrypt(params_buffer.read(), key)
+    encrypted_model_dir = args.model + "_encrypt"
+    model_buffer.close()
+    params_buffer.close()
+    os.mkdir(encrypted_model_dir)
+    with open(os.path.join(encrypted_model_dir, "__model__.encrypted"), "w") as f:
+        f.write(encrypted_model)
+
+    with open(os.path.join(encrypted_model_dir, "__params__.encrypted"), "w") as f:
+        f.write(encrypted_params)
+
+    with open(os.path.join(encrypted_model_dir, "encryption_key.txt"), "w") as f:
+        f.write(key)
+    print("encryption success")