HMAC MD5 to Match RFC 2022 Test Vectors

Demonstrates using Chilkat in Java to computer HMAC MD5 message authentication codes to match the test vectors given by RFC 2202.

Download Chilkat Java Library

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkCrypt2 crypt = new CkCrypt2();

    //  Any string argument automatically begins the 30-day trial.
    boolean success;
    success = crypt.UnlockComponent("30-day trial");
    if (success != true) {
        System.out.println("Crypt component unlock failed");
        return;
    }

    //  The output will be Hex, so set the EncodingMode:
    crypt.put_EncodingMode("hex");

    //  Set the hash algorithm:
    //  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
    crypt.put_HashAlgorithm("md5");

    String mac;

    //  Set the HMAC key:
    crypt.SetHmacKeyEncoded("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b","hex");
    mac = crypt.hmacStringENC("Hi There");
    System.out.println(mac);

    crypt.SetHmacKeyEncoded("Jefe","us-ascii");
    mac = crypt.hmacStringENC("what do ya want for nothing?");
    System.out.println(mac);
  }
}