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.

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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.lastErrorText());
        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","ansi");
    mac = crypt.hmacStringENC("what do ya want for nothing?");
    System.out.println(mac);
  }
}