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Xor calculation

JCIDE related questions and answers.

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deepanshsinghal
Posts: 44
Joined: Thu Apr 06, 2017 8:01 am
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Xor calculation

Post by deepanshsinghal » Fri Aug 04, 2017 8:21 am

Hi everyone,

i am calculating XOR like this,

Code: Select all

   public static byte[] xor(byte[] arqc, byte[] responseCode) {

      byte[] c = new byte[arqc.length];
      for (short i = 0; i < arqc.length; i++) {
         c[i] = (byte) (arqc[i] ^ responseCode[i]);
      }

      return c;
   }


is there any other way to calculate XOR because i think it might be the reason of giving the response "6F 00"

Regards,
Deepansh

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UNKNwYSHSA
Posts: 630
Joined: Thu May 21, 2015 4:05 am
Points :3027
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Re: Xor calculation

Post by UNKNwYSHSA » Sat Aug 05, 2017 1:11 pm

Please check the length of the responseCode, it's length shall greater or equal to the length of arqc!
sense and simplicity

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