Java

Workaround for the deprecated Crypt2.MacBytesENC method

Shows how to replace the deprecated MacBytesENC method. (Chilkat is moving away from the use of CkByteData.) Java

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[])
  {
    boolean success = false;

    CkCrypt2 crypt = new CkCrypt2();

    //  Do HMAC using SHA-256.
    crypt.put_MacAlgorithm("hmac");
    crypt.put_HashAlgorithm("sha256");

    String keyHex = "000102030405060708090A0B0C0D0E0F";
    success = crypt.SetMacKeyEncoded(keyHex,"hex");

    //  Return the HMAC using the lowercase hex encoding.
    crypt.put_EncodingMode("hex_lower");

    String path = "c:/someDir/example.dat";

    //  ------------------------------------------------------------------------
    //  The MacBytesENC method is deprecated:

    CkByteData inData = new CkByteData();
    inData.loadFile(path);

    String hmac_hex = crypt.macBytesENC(inData);
    System.out.println(hmac_hex);

    //  ------------------------------------------------------------------------
    //  Workaround.
    //  (Chilkat is moving away from using CkByteData)

    CkBinData bdIn = new CkBinData();
    bdIn.LoadFile(path);

    hmac_hex = crypt.macBdENC(bdIn);
    System.out.println(hmac_hex);
  }
}