certificate

func PemToCrt ¶

func PemToCrt(p *paths.Path) ([]byte, error)

PemToCrt ESP32 x509 certificate bundle generation utility

Converts PEM and DER certificates to a custom bundle format which stores just the subject name and public key to reduce space

The bundle will have the format: number of certificates; crt 1 subject name length; crt 1 public key length; crt 1 subject name; crt 1 public key; crt 2...

Originally taken from: https://github.com/espressif/esp-idf/blob/d2471b11e78fb0af612dfa045255ac7fe497bea8/components/mbedtls/esp_crt_bundle/gen_crt_bundle.py