aesencrypt.ino

Go to the documentation of this file.

 
#include "AES128ESP32.h"
#include "LittleFS.h"
 
 
 
 
void setup() {
 
  Serial.begin(460800);
  delay(1000);
 
  if (!LittleFS.begin()) {
    Serial.println("oops little FS");
    // LittleFS.format();
    // if (!LittleFS.begin()) {
      // Serial.println("failed after format....");
    // }
  }
 
  Serial.println("--crypto test---");
// set to true to remove the masterkey from disk
  bool deletemasterfile = false;
  if (deletemasterfile) {
    LittleFS.remove("/ms.bin");
  }
 
  pass2Key keymanager;
  cryptoAES128 crypto;
 
    MasterKeyData masterkeyinfo;
 
  if (!LittleFS.exists("/ms.bin")) {
    keymanager.makeMasterKey();
 
    keymanager.getMasterKey(masterkeyinfo);
    DUMP("masterkeyinfo",masterkeyinfo.data,masterkeyinfo.size);
 
    Serial.println("Writing masterkey to disk");
    File f = LittleFS.open("/ms.bin", FILE_WRITE, true);
     f.write(masterkeyinfo.data, masterkeyinfo.size);
    f.close();
  } else {
    Serial.println("Reading masterkeyinfo from disk");
    File f = LittleFS.open("/ms.bin");
    f.readBytes((char*)masterkeyinfo.data, masterkeyinfo.size);
    f.close();
    keymanager.setMasterKey(masterkeyinfo);
    DUMP("masterkeyinfo",masterkeyinfo.data,masterkeyinfo.size);
  }
    masterkeyinfo.cleardata();
 
  keymanager.deriveNewKeyfromText("xx1");
 
  crypto.setKeyaccess(&keymanager);
  encryptedData *returndata;
   crypto.Encrypt("123456789abcdefG",&returndata);
 ivData saveiv;
 crypto.getIVbytes(saveiv);
 crypto.setIVbytes(saveiv);
  String rtn;
   crypto.Decrypt(returndata,rtn);
  delete returndata;
  Serial.println("rtn = " + rtn);
}
 
void loop() {
  // put your main code here, to run repeatedly:
}