Java Question Chilkat Rsa Library

[Sytek]

Hello I'd created a library from the source code attached in the zip file.
....I can't call the library; But appears in the referenced libraries without the version info.
I don't know where to put the version info.
But I edit the chilkat.java and put the following

package com.chilkatsoft;

import anywheresoftware.b4a.BA;
//import anywheresoftware.b4a.BA.ActivityObject;
import anywheresoftware.b4a.BA.ShortName;
import anywheresoftware.b4a.BA.Version;

@Version(1.0f)
@ShortName("chilkatsoft")
//@ActivityObject
//@Author("chilkatsoft")

............
..And the version does not appear thank's for helping me (I need this library 'cause I need to sign a variable/file in SHA-1 format) as follows

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {
  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView tv = new TextView(this);
    String outStr = "";

    CkPrivateKey pkey = new CkPrivateKey();

    //  Load the private key from an RSA PEM file:
    pkey.LoadPkcs8EncryptedFile("raul_privateKey.key","a0123456789");

    boolean success;

    String pkeyXml;
    //  Get the private key in XML format:
    pkeyXml = pkey.getXml();

    CkRsa rsa = new CkRsa();

    //  Any string argument automatically begins the 30-day trial.

    success = rsa.UnlockComponent("Anything for 30-day trial.");
    if (success != true) {
        outStr += "RSA component unlock failed" + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Import the private key into the RSA component:
    success = rsa.ImportPrivateKey(pkeyXml);
    if (success != true) {
        outStr += rsa.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  This example will sign a string, and receive the signature
    //  in a hex-encoded string.  Therefore, set the encoding mode
    //  to "hex":
    rsa.put_EncodingMode("hex");

    String strData;
    strData = "This is the string to be signed.";

    //  Sign the string using the sha-1 hash algorithm.
    //  Other valid choices are "md2" and "md5".
    String hexSig;
    hexSig = rsa.signStringENC(strData,"sha-1");

    outStr += hexSig + "\n";

    //  Now verify with the public key.
    //  This example shows how to use the public key from
    //  a digital certificate (.cer file)
    CkCert cert = new CkCert();
    success = cert.LoadFromFile("raul_publicKey.cer");
    if (success != true) {
        outStr += cert.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    CkPublicKey pubKey;
    pubKey = cert.ExportPublicKey();

    String pubKeyXml;
    //  Get the private key in XML format:
    pubKeyXml = pubKey.getXml();

    CkRsa rsa2 = new CkRsa();
    success = rsa2.ImportPublicKey(pubKeyXml);
    if (success != true) {
        outStr += rsa2.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    //  Verify the signature against the original data:
    rsa2.put_EncodingMode("hex");
    success = rsa2.VerifyStringENC(strData,"sha-1",hexSig);
    if (success != true) {
        outStr += rsa2.lastErrorText() + "\n";
        tv.setText(outStr);
        setContentView(tv);
        return;
    }

    outStr += "Signature verified!" + "\n";

    //  Verify with incorrect data:
    success = rsa2.VerifyStringENC("something else","sha-1",hexSig);
    if (success != true) {
        outStr +=  + "\n";    }

    tv.setText(outStr);
    setContentView(tv);
  }

  static {
      // Important: Make sure the name passed to loadLibrary matches the shared library
      // found in your project's libs/armeabi directory.
      //  for "libchilkat.so", pass "chilkat" to loadLibrary
      //  for "libchilkatemail.so", pass "chilkatemail" to loadLibrary
      //  etc.
      //
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}

Referenced libraries without the version info.

Best Regards!

Original Source Code: http://www.chilkatsoft.com/download/chilkat-9.4.1-android-rsa.zip

 

[Erel]

Create a new class and make sure that its package doesn't start with com.chilkat as you added this to the ignore field.

This class will be the wrapper that calls the chilkat API.

 

[Sytek]

Thank's Erel, That one works, now I will check how the oncreate works.

...I need to call this one

CkPrivateKey pkey = new CkPrivateKey();
    //  Load the private key from an RSA PEM file:
    pkey.LoadPkcs8EncryptedFile("raul_privateKey.key","a0123456789");

...From this one.

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    TextView tv = new TextView(this);
    String outStr = "";

    CkPrivateKey pkey = new CkPrivateKey();

    //  Load the private key from an RSA PEM file:
    pkey.LoadPkcs8EncryptedFile("raul_privateKey.key","a0123456789");

Best Regards!

 

[Erel]

This one is simple. Just provide a method that loads the key and returns it.