7.1 Certificate and Key Utility

The certificate and key utility is a python tool which can support load, delete and list operations over the RNWF file system. The tool can only accept the PEM formatted X509 certificates or cryptographic key files. It can identify whether the given PEM file is a certificate or key file based on its header information and load it in the corresponding section of the file system. The file upload utility is available in the RNWF utilities that can be found on the product page at www.microchip.com/en-us/product/rnwf11pc (rnwf_utilities_vX.X.X\file_upload)
Figure 7-1. File Upload Utility Path

Requirements

  • Python v3.8.0 or higher
Using the command terminal, navigate to the utility folder (rnwf_utilities_vX.X.X\file_upload) and install the necessary python modules by using the following command.
>python -m pip install -r requirements.txt
The certificate and key utility syntax is as follows:
python file_upload.py <Operation> [-h] [-f <File_Name>] [-p <File_Path>] [-proto Protocol]
Arguments:
  Operation             Valid operations ['load', 'list', 'delete']
  File_Type             File types of given operation ['cert','key'] (Required only for list & delete)

Optional:
  -h, --help                            show this help message and exit
  -f <File_Name>, --file <File_Name>    File Name to save on board
  -p <File_Path>, --path <File_Path>    File Path on local machine
  -proto Protocol, --protocol Protocol  File transfer protocol ('xsum','xcrc','x1k' Default:xsum)

Features

  • Auto Detects the RNWF11 COM/Serial port
  • Determines the File-type (cert/key) while Uploading
  • Detects if the Given File to Load/Delete Already Exists

Examples

  1. List Certificates or Keys:
    python file_upload.py list cert 
OR 
python file_upload.py list key
  2. Load a Certificate or Key:
    Note: Uses the default file-transfer protocol - xsum (X Modem + checksum)
    python file_upload.py load cert -f <File Name to save on Board> -p <File Path on local machine>
OR
python file_upload.py load key -f <File Name to save on Board> -p <File Path on local machine>
  3. Load a Certificate or Key - Specify a protocol while uploading Certificate or Key
    python file_upload.py load cert/key -f <File Name to save on Board> -p <File Path on local machine> -proto xcrc
  4. Delete a Certificate or Key:
    python file_upload.py delete cert -f <File Name to delete from Board>
OR 
python file_upload.py delete key -f <File Name to delete from Board>