kakopappa / arduino-esp8266-aes-encryption-with-nodejs Goto Github PK

Hello,

Thank you for putting together this library.

I've installed it and the code fails to compile with an error:
AESLib.cpp:63:48: error: 'base64_encode' was not declared in this scope

Adding the following include to AESLib.cpp resolved the issue, the example code now compiles and runs as expected:
#include "Base64.h"

Adding that include to my sketch did not work.

AES.cpp应该改成：

void AES::calc_size_n_pad(int p_size){
  int s_of_p = p_size;
  if ( s_of_p % N_BLOCK == 0){
      size = s_of_p + 16;
  }else{
    size = s_of_p +  (N_BLOCK-(s_of_p % N_BLOCK));
  }
  pad = size - s_of_p;
}

AES.h应该改成：

  byte arr_pad[16] = { 0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10 };/**< holds the hexadecimal padding values */

Hi kakopappa! Thanks for your awesome aes-encryption library.

I needed to decrypt in PHP and wrote a small port - see https://zeitwesentech.com/blog/?p=521
If you want you can also add that to your readme or provide a link to my post!

@kakopappa
Hi, I want to send string message about 7000-8000 length. I do not send with this code. How can I convert this code to send long message ?

I just tried your gift for an ESP32...

With your example I get:

11:50:38.671 -> Booting...
11:50:38.671 -> Let's encrypt:
11:50:38.671 -> IV b64: AAAAAAAAAAAAAAAAAAAAAA==
11:50:38.671 -> Message: {"data":{"value":300}, "SEQN":700 , "msg":"IT WORKS!!" }
11:50:38.671 -> Message in B64: eyJkYXRhIjp7InZhbHVlIjozMDB9LCAiU0VRTiI6NzAwICwgIm1zZyI6IklUIFdPUktTISEiIH0=
11:50:38.671 -> The lenght is: 76
11:50:38.671 -> Encryption done!
11:50:38.706 -> Cipher size: 80
11:50:38.706 -> Encrypted data in base64: 7bzIAnZUizSXRjIPTPysu9GXfiJohP8Ku2I9EUrviheRX9A+ecvsQaNvFveKtKGnTeAzOeCrK0WldZy8psT8NfLOsIjAXySlTjljf8PGAng=
11:50:38.706 -> Done...

Whatever key I use I always get:

IV b64: AAAAAAAAAAAAAAAAAAAAAA==

Hello i am trying to decode a message but i get unwanted chacters on the end of my message
the message has been created by nodejs , this is good library i rather use it .
this is my code , its very simple :

#include "AES.h"
#include "base64.h"
#include "ArduinoJson.h"
AES aes;

void setup() {
    Serial.begin(115200);
    Serial.println("\nBooting...");  

byte IV[N_BLOCK]  = {0x28 , 0xc1 , 0x58 , 0xc3 , 0x0b , 0x35 , 0x16 , 0xd7 , 0x8a , 0xd0 , 0xfc , 0x61 , 0xc5 , 0x03 , 0x23 , 0x2e};
byte KEY[]        = {0xa6 , 0xf7 , 0xf8 , 0x72 , 0xc1 , 0x8e , 0x0b , 0xe2 , 0x0a , 0x77 , 0xa1 , 0x0e , 0xc5 , 0xe3 , 0x15 , 0x68};
byte DATA[]       = {0x23 , 0x13 , 0x4c , 0xda , 0xa1 , 0xf4 , 0x4d , 0xcf , 0x5d , 0xfb , 0x85 , 0x55 , 0x1a , 0x63 , 0x78 , 0xdc , 0x9b , 0x22 , 0x7a , 0xb3 , 0x11 , 0x57 , 0x25 , 0xd6 , 0xe1 , 0xb0 , 0xf6 , 0x6f , 0x1b , 0xcb , 0xa2 , 0x0d , 0x43 , 0x7f , 0x08 , 0x2f , 0x5f , 0xb4 , 0xf1 , 0xa5 , 0xec , 0xd2 , 0x5a , 0x8f , 0xee , 0x9d , 0x64 , 0x37};

   byte text[100]={0};
   char text2[100]={0};
    aes.do_aes_decrypt(DATA, sizeof(DATA) , text, KEY, 128, IV);

    Serial.println();
    for(int i=0;text[i];i++)
    {
      Serial.print((char)text[i]);
      text2[i]=(char)text[i];
    }
    Serial.println();
    String msge = String(text2);
    msge.trim();
    Serial.println(msge);

    Serial.println("Done...");
}

void loop() {
  // put your main code here, to run repeatedly:
}

this is the out put :
EXM1 : you should see number one end of line 1��
that two squares are more than what i need , i cant trim them , any idea why is this happening ?