php big integers
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2490888/how-to-work-with-big-numbers-in-php">How to work with big numbers in PHP?</a>  </p>
</blockquote>



<p>i am developing a web app on RSA algorithm.
as to make RSA more secure u have to use large numbers so here it goes....
so first i convert the alphabets (all A to Z) into their ASCII codes, i m using ord().</p>

<p>but the problem is the function <code>ciphertext=m(pow)e*[mod n]</code>
in which m (message which is a number) to the power e is to be calculated
now if ascii of a is 97 , and suppose e=57
then 97 to the power 57 will be huge....
i have a 32 bit laptop.</p>

<p>so plz tell the right data type which i should use
thanks.</p>
