esp-open-rtos/examples/atcatool/cmd_pub.c

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#include "uart_cmds.h"
#include <stdint.h>
#include <sys/types.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <esp8266.h>
#include <esp/uart.h>
#include <stdio.h>
#include "FreeRTOS.h"
#include "task.h"
// get cert and priv key
//> openssl req -new -x509 -nodes -newkey ec:<(openssl ecparam -name secp256r1) -keyout cert.key -out cert.crt -days 3650
// get pub key
//> openssl x509 -in cert.crt -pubkey -noout > pubkey.pem
ATCA_STATUS cmd_pub(uint32_t argc, char *argv[])
{
ATCA_STATUS status;
if (argc >= 2) {
uint8_t slot_num = atoi(argv[1]);
if (slot_num < 0x8 || slot_num > 0xF){
LOG("Invalid slot number %d; must be between 8 and 15 for public keys", slot_num);
return ATCA_BAD_PARAM;
}
printf("Programming public key in slot %d\n", slot_num);
uint8_t pubkeybytes[100];
int pubkeylen = sizeof(pubkeybytes);
status = read_pubkey_stdin(pubkeybytes, &pubkeylen);
if (status != ATCA_SUCCESS)
{
RETURN(status, "Failed to read public key");
}
LOG("Got valid looking pubkey; does this look correct?");
uint8_t *keyptr = pubkeybytes + (pubkeylen - ATCA_PUB_KEY_SIZE);
atcab_printbin_label((const uint8_t*)"pubkey ", keyptr, ATCA_PUB_KEY_SIZE);
if (!prompt_user()) {
printf("Aborting\n");
}else{
printf("Writing key\n");
}
// Write key to device
status = atcab_write_pubkey(slot_num, keyptr);
if(status != ATCA_SUCCESS){
RETURN(status, "Failed to write key to slot");
}
return ATCA_SUCCESS;
} else {
printf("Error: missing slot number.\n");
return ATCA_BAD_PARAM;
}
}