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118 lines
3.2 KiB
118 lines
3.2 KiB
4 years ago
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/*
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httpUpdateSigned.ino - Earle F. Philhower, III
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Released into the Public Domain
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For use while building under Linux or Mac.
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Automatic code signing is not supported on Windows, so this example
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DOES NOT WORK UNDER WINDOWS.
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Shows how to use a public key extracted from your private certificate to
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only allow updates that you have signed to be applied over HTTP. Remote
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updates will require your private key to sign them, but of course
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**ANYONE WITH PHYSICAL ACCESS CAN UPDATE THE 8266 VIA THE SERIAL PORT**.
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*/
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#include <Arduino.h>
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#include <ESP8266WiFi.h>
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#include <ESP8266WiFiMulti.h>
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#include <ESP8266HTTPClient.h>
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#include <ESP8266httpUpdate.h>
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#ifndef STASSID
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#define STASSID "your-ssid"
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#define STAPSK "your-password"
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#endif
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ESP8266WiFiMulti WiFiMulti;
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#define MANUAL_SIGNING 0
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// This example is now configured to use the automated signing support
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// present in the Arduino IDE by having a "private.key" and "public.key"
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// in the sketch folder. You can also programmatically enable signing
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// using the method shown here.
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// This key is taken from the server public certificate in BearSSL examples
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// You should make your own private/public key pair and guard the private
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// key (never upload it to the 8266).
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const char pubkey[] PROGMEM = R"EOF(
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-----BEGIN PUBLIC KEY-----
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MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyW5a4OO7xd6pRDTETO7h
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vEMBOr/wCqcTi/gi2/99rPnVvT7IH/qGSiYMxpGFKCXVqS4rU5k2XspALEquyGse
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Uav5hqsgHO6CQFFALqXzUVNCsJA9V6raUFhBaIqqCKmWzmeAkV+avM/zDQR9Wj1Q
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TCmi997sJJ5ICQc8cGSdvrhisUSbfPpKI9Ql4FApOZRABBBuZKhN9ujIzTv3OIAa
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rpQVfACKKuv7a2N2qU0uxRDojeO6odT1c6AZv6BlcF76GQGTo+/oBhqPdbAQuaBy
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cuWNgTnDQd6KUzV0E4it2fNG+cHN4kEvofN6gHx8IbOrXwFttlpAH/o7bcfCnUVh
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TQIDAQAB
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-----END PUBLIC KEY-----
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)EOF";
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#if MANUAL_SIGNING
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BearSSL::PublicKey *signPubKey = nullptr;
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BearSSL::HashSHA256 *hash;
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BearSSL::SigningVerifier *sign;
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#endif
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void setup() {
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Serial.begin(115200);
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// Serial.setDebugOutput(true);
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Serial.println();
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Serial.println();
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Serial.println();
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for (uint8_t t = 4; t > 0; t--) {
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Serial.printf("[SETUP] WAIT %d...\n", t);
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Serial.flush();
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delay(1000);
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}
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WiFi.mode(WIFI_STA);
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WiFiMulti.addAP(STASSID, STAPSK);
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#if MANUAL_SIGNING
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signPubKey = new BearSSL::PublicKey(pubkey);
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hash = new BearSSL::HashSHA256();
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sign = new BearSSL::SigningVerifier(signPubKey);
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#endif
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}
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void loop() {
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// wait for WiFi connection
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if ((WiFiMulti.run() == WL_CONNECTED)) {
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WiFiClient client;
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#if MANUAL_SIGNING
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// Ensure all updates are signed appropriately. W/o this call, all will be accepted.
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Update.installSignature(hash, sign);
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#endif
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// If the key files are present in the build directory, signing will be
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// enabled using them automatically
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ESPhttpUpdate.setLedPin(LED_BUILTIN, LOW);
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t_httpUpdate_return ret = ESPhttpUpdate.update(client, "http://192.168.1.8/esp8266.bin");
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switch (ret) {
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case HTTP_UPDATE_FAILED:
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Serial.printf("HTTP_UPDATE_FAILED Error (%d): %s\n", ESPhttpUpdate.getLastError(), ESPhttpUpdate.getLastErrorString().c_str());
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break;
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case HTTP_UPDATE_NO_UPDATES:
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Serial.println("HTTP_UPDATE_NO_UPDATES");
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break;
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case HTTP_UPDATE_OK:
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Serial.println("HTTP_UPDATE_OK");
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break;
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}
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}
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delay(10000);
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}
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