title: MD5 hash of a file in ABAP
body: <p>I want to generate a MD5 hash of a text file in ABAP. I have not found any standard solution for generating it for a very big file. Function module <code>CALCULATE_HASH_FOR_CHAR</code> does not meet my requirements because it takes a string as an input parameter. Although it works for smaller files, in case of a for example 4 GB file one cannot construct such a big string.</p>
  
  <p>Does anybody know whether there is a standard piece of coding for doing that (my google efforts did not bring me anything) or maybe someone has an MD5 algorithm in ABAP that calculates the hash of a file?</p>