CryptEncode HMAC questions

[TradingToolCrypto]

let CryptoJS = require("crypto-js");
let request = require('request');

let msg = "The quick brown fox jumps over the lazy dog";
let secret = "01234567890123456789012345678901";

let hash = CryptoJS.HmacSHA256(msg, secret)

console.log(hash.toString())

let hashInBase64 = CryptoJS.enc.Base64.stringify(hash)

console.log(hashInBase64)

Javascript has libraries to create hmac sha256 and base64 encoding while mql5 is missing the hmac within the CryptEncode function. Thankfully there is a library for hmac sha here https://www.mql5.com/en/code/21065

Below is the output from the javascript code. 

3b3803c66fe6688cc3ddcc02ca7fa6fd940a326cefbd1e3606c42eccbb21bdba (string hmac sha256)
OzgDxm/maIzD3cwCyn+m/ZQKMmzvvR42BsQuzLshvbo= (string base64)

Now I am trying to duplicate the output within mql5... HMAC sha256 to string is simple thanks to the library. 

void code1(){
   Print("CODE1");
   const string text="The quick brown fox jumps over the lazy dog";
   const string keystr="01234567890123456789012345678901";
   Print("MQL HMACsha256=" +  hash.hmac(text,keystr) );
}

This will output: MQL HMACsha256=3b3803c66fe6688cc3ddcc02ca7fa6fd940a326cefbd1e3606c42eccbb21bdba

void code2(){
   Print("CODE2");
   string text="The quick brown fox jumps over the lazy dog";
   string keystr="01234567890123456789012345678901";
   string hmacstr = hash.hmac(text,keystr);
   uchar str[],key[],dst[];
   StringToCharArray(hmacstr,str,0,StringLen(hmacstr) );
   int res = CryptEncode(CRYPT_BASE64,str,key,dst);
   if(res>0){
   Print("MQL BASE64="+ CharArrayToString(dst,0,WHOLE_ARRAY,CP_UTF8));
   }
}

Output: MQL BASE64=M2IzODAzYzY2ZmU2Njg4Y2MzZGRjYzAyY2E3ZmE2ZmQ5NDBhMzI2Y2VmYmQxZTM2MDZjNDJlY2NiYjIxYmRiYQ==

Well that's not right. What could have been the issue? If you take the HMAC sha256 string into any online base64 encoder you will have this output because we're taking a string of the hmac sha256 and base64 encoding it. 

[Dominik Egert]

TradingToolCrypto:

Javascript has libraries to create hmac sha256 and base64 encoding while mql5 is missing the hmac within the CryptEncode function. Thankfully there is a library for hmac sha here https://www.mql5.com/en/code/21065

Below is the output from the javascript code. 

Now I am trying to duplicate the output within mql5... HMAC sha256 to string is simple thanks to the library. 

This will output: MQL HMACsha256=3b3803c66fe6688cc3ddcc02ca7fa6fd940a326cefbd1e3606c42eccbb21bdba

Output: MQL BASE64=M2IzODAzYzY2ZmU2Njg4Y2MzZGRjYzAyY2E3ZmE2ZmQ5NDBhMzI2Y2VmYmQxZTM2MDZjNDJlY2NiYjIxYmRiYQ==

Well that's not right. What could have been the issue? If you take the HMAC sha256 string into any online base64 encoder you will have this output because we're taking a string of the hmac sha256 and base64 encoding it. 

I have tried to verify your issue, but when using this encoder/decoder, everything seems to line up correctly.

https://www.base64decode.net/

Please verify the output from javascript, as it seems to be an encoding issue somewhere with the charset in use.

[Alain Verleyen]

https://stackoverflow.com/questions/32188149/difference-between-cryptojs-enc-base64-stringify-and-normal-base64-encryption

[Dominik Egert]

Alain Verleyen:
https://stackoverflow.com/questions/32188149/difference-between-cryptojs-enc-base64-stringify-and-normal-base64-encryption

Thank you for pointing this out.

[Farzin Sadeghi Bonjar]

Alain Verleyen #:
https://stackoverflow.com/questions/32188149/difference-between-cryptojs-enc-base64-stringify-and-normal-base64-encryption

sorry to bring up a 2 years old topic again. I didn't understand at last  what was the point?  is the mql crypt encode function working correctly ? and the result differences are not important what we see at print logs?   please explain more. thanks in advanced.

 int res = CryptEncode(CRYPT_BASE64,str,key,dst);

edit 1: 

thanks to that post in stackoverflow , after multiple hours of trial and reading it over and over again. I finally understood what he wrote. 

when we use that sha256 library , the returned value is in hex format not  decimal or utf normal strings.

so I wrote a function for finding hex characters and then when I had an array with hex data, I used it on cryptencode as src array, and an empty array as key, and another array for base64encoded results.   

and finally it works :D