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#include <Update.h>
..
const uint8_t OTA_KEY[32] = {'0','v','R','u','e','o','B','n','S','v','t','B','P','l','e','Q','4','D','s','0','1','q','Q','U','5','g','x','7','Z','u','3','5'};
#define OTA_ADDRESS 0x0
#define OTA_CFG 0x0
#define OTA_MODE U_AES_DECRYPT_ON
..
void start_ota() {
  if(!Serial) Serial.begin(115200);
  server.on("/ota", HTTP_GET, []() { server.sendHeader("Connection", "close"); server.send(200, "text/html", otahtml); });
  server.on("/upl_fw", HTTP_POST, []() {
  server.sendHeader("Connection", "close");
  server.send(200, "text/plain", (Update.hasError()) ? String(Update.getError()) : "OK");
  if(Update.hasError()) Update.printError(Serial);
  server.handleClient();
  delay(100);
  resetModule();
  }, []()
    {   esp_task_wdt_reset();
        delay(1);
        HTTPUpload &upload = server.upload();
        if (upload.status == UPLOAD_FILE_START) {
            Serial.printf("upd: %s\n", upload.filename.c_str());
            if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { Update.printError(Serial); } // start with max available size
        } else if (upload.status == UPLOAD_FILE_WRITE) {
          //secure
          if (!Update.setupCrypt(OTA_KEY, OTA_ADDRESS, OTA_CFG, OTA_MODE)) {
            Serial.println("Update.setupCrypt failed!");
          }
          //flashing firmware
          if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) { Update.printError(Serial); }
          Serial.print(F("."));
        } else if (upload.status == UPLOAD_FILE_END) {
          if (Update.end(true)) { Serial.println("upd_succ\nreboot\n"); LITTLEFS.remove("/config.txt"); } // true to set the size to the current progress && clear old config
          else { Update.printError(Serial); }
        }
   });
}

Code: Select all

espsecure.exe encrypt_flash_data -k ota_key.txt --flash_crypt_conf 0x0 -a 0x0 -o %%f.ota %%f