How to generate Keyhash (Facebook) using the Keytool in android for W7 32bit

Using this command first download this file http://code.google.com/p/openssl-for-windows/downloads/detail?name=openssl-0.9.8k_WIN32.zip . Then extract the file and run this command:

C:\Program Files\Java\jdk1.6.0_20\bin>keytool -export -alias myAlias -keystore C:\Users\DON\.android\myKeyStore | C:\openssl\bin\openssl sha1 -binary | C:\openssl\bin\openssl enc -a -xtIm30l*********=

DON is my system name and should be replaced with your system name.

1. Download the openssl-for-windows package.
2. Extract the zip.
3. In windows, edit the path system variable that points to <openssl-extracted-folder>/bin
4. Then run the command.

First do the Facebook sdk setup then main program if you add this, you will get keyhash at console

There will be chances of 3 type keys once is debug and another is release key and after upload google changes signature ,you can provide all these 3 keys to facebook developer account ,then you can check facebook login. depending upon your app mode facebook will match the key.Use toast to see the keyhash ,if you dont know android monitor from android studio

import com.facebook.FacebookSdk;
import com.facebook.appevents.AppEventsLogger;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FacebookSdk.sdkInitialize(getApplicationContext());
    AppEventsLogger.activateApp(this);
   printKeyHash();
}


private void printKeyHash() {
    try {
        PackageInfo info = getPackageManager().getPackageInfo(
                getPackageName(), PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.i("KeyHash:",
                    Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (PackageManager.NameNotFoundException e) {
        Log.e("jk", "Exception(NameNotFoundException) : " + e);
    } catch (NoSuchAlgorithmException e) {
        Log.e("mkm", "Exception(NoSuchAlgorithmException) : " + e);
    }
}

}