This site Web

Message Digest - MD5 Algorithm

Part:   1  2  3  4  5 

(Continued from previous part...)

If you run this sample program with JDK 1.5, you should get the following output:

Message digest object info:
   Algorithm = MD5
   Provider = SUN version 1.5
   toString = MD5 Message Digest from SUN, <initialized>

MD5("") =
   D41D8CD98F00B204E9800998ECF8427E

MD5("abc") =
   900150983CD24FB0D6963F7D28E17F72

MD5("abcdefghijklmnopqrstuvwxyz") =
   C3FCD3D76192E4007DFB496CCA67E13B

The output matches the testing result listed in RFC 1321.

MD5 Implementation in PHP

If you are interested in using MD5 in PHP, you can use the built-in function md5(). Here is a sample program showing you how to use md5() function:

<?php # PhpMd5Test.php
# Copyright (c) 2006 by Dr. Herong Yang, http://www.herongyang.com/
# 
   $input = "";
   $output = md5($input);
   print("\n");
   print("MD5(\"".$input."\") =\n");
   print("   $output\n");

   $input = "abc";
   $output = md5($input);
   print("\n");
   print("MD5(\"".$input."\") =\n");
   print("   $output\n");

   $input = "abcdefghijklmnopqrstuvwxyz";
   $output = md5($input);
   print("\n");
   print("MD5(\"".$input."\") =\n");
   print("   $output\n");
?>

If you run this sample program with PHP 5, you should get:

MD5("") =
   d41d8cd98f00b204e9800998ecf8427e

MD5("abc") =
   900150983cd24fb0d6963f7d28e17f72
   
MD5("abcdefghijklmnopqrstuvwxyz") =
   c3fcd3d76192e4007dfb496cca67e13b

(Continued on next part...)

Part:   1  2  3  4  5