syntax = "proto2"; message ciphertext_client_data_field { bytes field = 1; } message extension_to_decryptor_enclosed_msg { bytes ciphertext_client_public_key = 1; repeated ciphertext_client_data_field ciphertext_fields = 2; } message extension_to_decryptor_ciphertext_msg { bytes ciphertext_bytes = 1; } message decryptor_to_extension_msg_t { repeated ciphertext_client_data_field ciphertext_fields= 1; }