libjava/testsuite/libjava.lang/md5test.java

   1 import java.security.*;
   2
   3 class md5test {
   4
   5
   6     // gnu-crypto/source/gnu/testlet/gnu/crypto/hash/TestOfMD5.java
   7
   8     public static void main(String[] argv) {
   9         String[] strings = {
  10             "a",
  11             "abc",
  12             "message digest",
  13             "abcdefghijklmnopqrstuvwxyz",
  14             "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
  15             "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
  16         };
  17
  18         String[] expected = {
  19             "0CC175B9C0F1B6A831C399E269772661",
  20             "900150983CD24FB0D6963F7D28E17F72",
  21             "F96B697D7CB7938D525A2F31AAF161D0",
  22             "C3FCD3D76192E4007DFB496CCA67E13B",
  23             "D174AB98D277D9F5A5611C2C9F419D9F",
  24             "57EDF4A22BE3C955AC49DA2E2107B67A"
  25         };
  26
  27         for (int i = 0; i < strings.length; i++)
  28             testString(strings[i], expected[i]);
  29
  30     }
  31
  32     public static void testString(String string, String expected) {
  33
  34         MessageDigest md=null;
  35         try {
  36             md = MessageDigest.getInstance("MD5");
  37             md.update(string.getBytes(), 0, string.length());
  38             String result = toString(md.digest());
  39             System.out.println(expected);
  40             System.out.println(result);
  41             if (!expected.equals(result))
  42                 System.out.println("NOT EQUAL!");
  43         } catch (Exception x) {
  44             x.printStackTrace();
  45         }
  46     }
  47
  48     public static String toString(byte[] ba) {
  49         return toString(ba, 0, ba.length);
  50     }
  51     public static final String toString(byte[] ba, int offset, int length) {
  52         char[] buf = new char[length * 2];
  53         for (int i = 0, j = 0, k; i < length; ) {
  54             k = ba[offset + i++];
  55             buf[j++] = HEX_DIGITS[(k >>> 4) & 0x0F];
  56             buf[j++] = HEX_DIGITS[ k        & 0x0F];
  57         }
  58         return new String(buf);
  59     }
  60
  61     private static final char[] HEX_DIGITS = "0123456789ABCDEF".toCharArray();
  62
  63 }