Android™
Android™
Save a Private Key as a PKCS #8 PEM File
See more Private Key Examples
Demonstrates the Chilkat PrivateKey.SavePkcs8PemFile method, which saves the key as unencrypted PKCS #8 PEM (the PRIVATE KEY label) to a file. The only argument is the destination path.
Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.
Background: This writes the widely-compatible unencrypted
.pem that most modern tooling reads — the text (Base64) form of PKCS #8. It is convenient and portable, but unprotected, so keep the file access-controlled or prefer the encrypted variant for anything that leaves a trusted location.Chilkat Android™ Downloads
// 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 {
private static final String TAG = "Chilkat";
// Called when the activity is first created.
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
boolean success = false;
// Load a private key to export.
CkPrivateKey privKey = new CkPrivateKey();
success = privKey.LoadPemFile("qa_data/private.pem");
if (success == false) {
Log.i(TAG, privKey.lastErrorText());
return;
}
// Save as unencrypted PKCS #8 PEM (the "PRIVATE KEY" label).
success = privKey.SavePkcs8PemFile("qa_output/private_pkcs8.pem");
if (success == false) {
Log.i(TAG, privKey.lastErrorText());
return;
}
Log.i(TAG, "Saved.");
}
static {
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."
}
}