User Manual

If you want to change the output filename (in case you have multiple header files to deal with), and convert two

domains at the same time into a single header file, you would issue the following command:

Converting PEM Files

You can also use the convert command to convert a text PEM/.pem file to a C header, which is provided as a

convenience since many browsers will allow you to navigate to a specific domain and export the certificate chain in

.pem format.

Parameters

The ' convert ' command has the following parameters:

Usage

To convert a single .pem file to a C header you could use the following command:

You can also convert multiple .pem files into one C header as follows:

$ pycert download --output data.h google.com adafruit.com

Usage: pycert.py convert [OPTIONS] [CERT]...

-c, --cert-var TEXT name of the variable in the header which will

contain certificate data (default: rootca_certs)

-l, --cert-length-var TEXT name of the define in the header which will

contain the length of the certificate data

(default: ROOTCA_CERTS_LEN)

-o, --output FILENAME name of the output file (default:

certificates.h)

-f, --full-chain use the full certificate chain and not just the

root/last cert (default: false, root cert only)

-d, --keep-dupes write all certs including any duplicates

(default: remove duplicates)

--help Show this message and exit.

$ python pycert.py convert foo.pem

$ python pycert.py convert foo.pem bar.pem