Updated on 2026-08-14
This commit is contained in:
Tangem
commit
5e7300987c
243 changed files with 28116 additions and 0 deletions
543
app/src/main/java/com/tangem/wallet/SavePINActivity.java
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543
app/src/main/java/com/tangem/wallet/SavePINActivity.java
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package com.tangem.wallet;
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import android.Manifest;
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import android.annotation.SuppressLint;
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import android.annotation.TargetApi;
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import android.app.Dialog;
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import android.app.KeyguardManager;
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import android.content.pm.PackageManager;
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import android.hardware.fingerprint.FingerprintManager;
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import android.os.AsyncTask;
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import android.os.Build;
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import android.os.Bundle;
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import android.security.keystore.KeyGenParameterSpec;
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import android.security.keystore.KeyPermanentlyInvalidatedException;
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import android.security.keystore.KeyProperties;
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import android.support.v4.app.ActivityCompat;
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import android.support.v7.app.AppCompatActivity;
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import android.text.TextUtils;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.TextView;
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import android.widget.Toast;
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import java.io.IOException;
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import java.security.KeyStore;
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import java.security.KeyStoreException;
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import java.security.NoSuchAlgorithmException;
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import java.security.cert.CertificateException;
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import javax.crypto.Cipher;
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import javax.crypto.KeyGenerator;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.IvParameterSpec;
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//import com.afollestad.materialdialogs.AlertDialogWrapper;
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public class SavePINActivity extends AppCompatActivity implements FingerprintHelper.FingerprintHelperListener {
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private TextView tvPIN;
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private CheckBox chkUseFingerprint;
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private ConfirmWithFingerprintTask mConfirmWithFingerprintTask;
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private KeyStore keyStore;
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private Cipher cipher;
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private FingerprintManager fingerprintManager;
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private FingerprintManager.CryptoObject cryptoObject;
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private FingerprintHelper fingerprintHelper;
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private boolean UsePIN2=false;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_save_pin);
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MainActivity.commonInit(getApplicationContext());
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UsePIN2=getIntent().getBooleanExtra("PIN2", false);
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tvPIN = findViewById(R.id.pin);
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OnClickListener onButtonNClick = new OnClickListener() {
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@Override
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public void onClick(View view) {
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tvPIN.setText(String.format("%s%s", tvPIN.getText(),((Button) view).getText()));
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}
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};
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if( UsePIN2 ) {
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((TextView) findViewById(R.id.pin_prompt)).setText(R.string.enter_pin2_and_use_fingerprint_to_save_it);
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}else{
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((TextView) findViewById(R.id.pin_prompt)).setText(R.string.enter_pin_and_use_fingerprint_to_save_it);
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}
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chkUseFingerprint = (CheckBox) findViewById(R.id.chkUseFingerprint);
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if( UsePIN2 ) {
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chkUseFingerprint.setChecked(true);
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chkUseFingerprint.setEnabled(false);
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}else{
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chkUseFingerprint.setChecked(PINStorage.haveEncryptedPIN());
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chkUseFingerprint.setEnabled(true);
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}
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Button btn0 = findViewById(R.id.btn0);
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btn0.setOnClickListener(onButtonNClick);
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Button btn1 = findViewById(R.id.btn1);
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btn1.setOnClickListener(onButtonNClick);
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Button btn2 = findViewById(R.id.btn2);
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btn2.setOnClickListener(onButtonNClick);
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Button btn3 = findViewById(R.id.btn3);
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btn3.setOnClickListener(onButtonNClick);
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Button btn4 = findViewById(R.id.btn4);
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btn4.setOnClickListener(onButtonNClick);
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Button btn5 = findViewById(R.id.btn5);
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btn5.setOnClickListener(onButtonNClick);
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Button btn6 = findViewById(R.id.btn6);
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btn6.setOnClickListener(onButtonNClick);
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Button btn7 = findViewById(R.id.btn7);
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btn7.setOnClickListener(onButtonNClick);
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Button btn8 = findViewById(R.id.btn8);
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btn8.setOnClickListener(onButtonNClick);
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Button btn9 = findViewById(R.id.btn9);
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btn9.setOnClickListener(onButtonNClick);
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Button btnBS = findViewById(R.id.btnBackspace);
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btnBS.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View view) {
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String S = tvPIN.getText().toString();
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if (S.length() > 0) {
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tvPIN.setText(S.substring(0, S.length() - 1));
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}
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}
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});
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Button btnSave = findViewById(R.id.btnSavePIN);
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btnSave.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View view) {
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doSavePIN();
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}
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});
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Button btnDelete = findViewById(R.id.btnDeletePIN);
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btnDelete.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View view) {
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doDeletePIN();
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}
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});
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}
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@Override
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protected void onPause() {
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super.onPause();
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if (fingerprintHelper != null)
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fingerprintHelper.cancel();
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if (mConfirmWithFingerprintTask != null)
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mConfirmWithFingerprintTask.cancel(true);
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}
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@Override
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protected void onStop() {
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super.onStop();
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if (fingerprintHelper != null)
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fingerprintHelper.cancel();
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if (mConfirmWithFingerprintTask != null)
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mConfirmWithFingerprintTask.cancel(true);
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}
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private enum OnConfirmAction {Save, DeleteEncryptedAndSave, Delete}
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OnConfirmAction onConfirmAction;
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private void doSavePIN() {
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if (mConfirmWithFingerprintTask != null) {
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return;
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}
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tvPIN.setError(null);
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String pin = tvPIN.getText().toString();
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boolean cancel = false;
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View focusView = null;
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if (TextUtils.isEmpty(pin)) {
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tvPIN.setError(getString(R.string.error_empty_pin));
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focusView = tvPIN;
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cancel = true;
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}
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if (cancel) {
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focusView.requestFocus();
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} else {
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if( UsePIN2 )
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{
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if (!testFingerPrintSettings()) {
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tvPIN.postDelayed(new Runnable() {
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@Override
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public void run() {
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finish();
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}
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}, 2000);
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return;
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}
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onConfirmAction = OnConfirmAction.Save;
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mConfirmWithFingerprintTask = new ConfirmWithFingerprintTask();
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mConfirmWithFingerprintTask.execute((Void) null);
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}else {
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if (chkUseFingerprint.isChecked() || PINStorage.haveEncryptedPIN()) {
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if (!testFingerPrintSettings()) {
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tvPIN.postDelayed(new Runnable() {
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@Override
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public void run() {
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finish();
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}
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}, 2000);
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return;
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}
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if (chkUseFingerprint.isChecked()) {
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onConfirmAction = OnConfirmAction.Save;
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} else {
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onConfirmAction = OnConfirmAction.DeleteEncryptedAndSave;
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}
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// Show a progress spinner, and kick off a background task to
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// perform the user login attempt.
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//showProgress(true);
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mConfirmWithFingerprintTask = new ConfirmWithFingerprintTask();
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mConfirmWithFingerprintTask.execute((Void) null);
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} else {
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PINStorage.savePIN(tvPIN.getText().toString());
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finish();
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}
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}
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}
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}
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private void doDeletePIN() {
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if( UsePIN2 )
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{
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if (PINStorage.haveEncryptedPIN2()) {
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if (!testFingerPrintSettings()) {
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tvPIN.postDelayed(new Runnable() {
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@Override
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public void run() {
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finish();
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}
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}, 2000);
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return;
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}
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onConfirmAction = OnConfirmAction.Delete;
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mConfirmWithFingerprintTask = new ConfirmWithFingerprintTask();
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mConfirmWithFingerprintTask.execute((Void) null);
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} else {
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tvPIN.setText("");
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finish();
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}
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}else {
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if (chkUseFingerprint.isChecked() || PINStorage.haveEncryptedPIN()) {
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if (!testFingerPrintSettings()) {
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tvPIN.postDelayed(new Runnable() {
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@Override
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public void run() {
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finish();
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}
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}, 2000);
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return;
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}
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onConfirmAction = OnConfirmAction.Delete;
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mConfirmWithFingerprintTask = new ConfirmWithFingerprintTask();
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mConfirmWithFingerprintTask.execute((Void) null);
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} else {
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tvPIN.setText("");
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PINStorage.deletePIN();
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finish();
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}
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}
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}
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@Override
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public void authenticationFailed(String error) {
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print(error);
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}
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@TargetApi(Build.VERSION_CODES.M)
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@Override
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public void authenticationSucceeded(FingerprintManager.AuthenticationResult result) {
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print("Authentication succeeded!");
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cipher = result.getCryptoObject().getCipher();
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switch (onConfirmAction) {
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case Save:
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String textToEncrypt = tvPIN.getText().toString();
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if( UsePIN2 )
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{
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PINStorage.saveEncryptedPIN2(cipher, textToEncrypt);
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}else {
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PINStorage.saveEncryptedPIN(cipher, textToEncrypt);
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}
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print(R.string.pin_save_success);
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break;
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case Delete:
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if( UsePIN2 )
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{
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PINStorage.deleteEncryptedPIN2();
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}else {
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PINStorage.deleteEncryptedPIN();
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PINStorage.deletePIN();
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}
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tvPIN.setText("");
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break;
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case DeleteEncryptedAndSave:
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if( UsePIN2 )
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{
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PINStorage.deleteEncryptedPIN2();
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PINStorage.saveEncryptedPIN2(cipher, tvPIN.getText().toString());
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}else {
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PINStorage.deleteEncryptedPIN();
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PINStorage.savePIN(tvPIN.getText().toString());
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}
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break;
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}
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dFingerPrintConfirmation.dismiss();
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finish();
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}
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private class ConfirmWithFingerprintTask extends AsyncTask<Void, Void, Boolean> {
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ConfirmWithFingerprintTask() {
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fingerprintHelper = new FingerprintHelper(SavePINActivity.this);
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}
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@Override
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protected Boolean doInBackground(Void... params) {
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if (!getKeyStore())
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return false;
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if (!createNewKey(false))
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return false;
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if (!getCipher())
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return false;
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return initCipher(Cipher.ENCRYPT_MODE) && initCryptObject();
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}
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@Override
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protected void onPostExecute(final Boolean success) {
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onCancelled();
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if (!success) {
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Toast.makeText(getBaseContext(), R.string.pin_save_fail, Toast.LENGTH_LONG).show();
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} else {
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print("Confirm PIN action using fingerprint!");
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fingerprintHelper.startAuth(fingerprintManager, cryptoObject);
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CreateFingerPrintConfirmationDialog();
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}
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}
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@Override
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protected void onCancelled() {
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mConfirmWithFingerprintTask = null;
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if (dFingerPrintConfirmation != null) {
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dFingerPrintConfirmation.cancel();
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}
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}
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}
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public void print(String text) {
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// Log.e("FP", text);
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}
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public void print(int id) {
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print(getString(id));
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}
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@SuppressLint("NewApi")
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private boolean testFingerPrintSettings() {
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print("Testing Fingerprint Settings");
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KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
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fingerprintManager = (FingerprintManager) getSystemService(FINGERPRINT_SERVICE);
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if (!keyguardManager.isKeyguardSecure()) {
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print("User hasn't enabled Lock Screen");
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Toast.makeText(getBaseContext(), "User hasn't enabled Lock Screen", Toast.LENGTH_LONG).show();
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return false;
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}
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if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
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print("User hasn't granted permission to use Fingerprint");
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Toast.makeText(getBaseContext(), "User hasn't granted permission to use Fingerprint", Toast.LENGTH_LONG).show();
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return false;
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}
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if (!fingerprintManager.hasEnrolledFingerprints()) {
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print("User hasn't registered any fingerprints");
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Toast.makeText(getBaseContext(), "User hasn't registered any fingerprints", Toast.LENGTH_LONG).show();
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return false;
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}
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print("Fingerprint authentication is set.\n");
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return true;
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}
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private boolean getKeyStore() {
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print("Getting keystore...");
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try {
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keyStore = KeyStore.getInstance(RequestPINActivity.KEYSTORE);
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keyStore.load(null); // Create empty keystore
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return true;
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} catch (KeyStoreException | CertificateException | NoSuchAlgorithmException | IOException e) {
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e.printStackTrace();
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}
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return false;
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}
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@TargetApi(Build.VERSION_CODES.M)
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public boolean createNewKey(boolean forceCreate) {
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print("Creating new key...");
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try {
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if (forceCreate)
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keyStore.deleteEntry(RequestPINActivity.KEY_ALIAS);
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if (!keyStore.containsAlias(RequestPINActivity.KEY_ALIAS)) {
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KeyGenerator generator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, RequestPINActivity.KEYSTORE);
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generator.init(new KeyGenParameterSpec.Builder(RequestPINActivity.KEY_ALIAS,
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KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
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.setBlockModes(KeyProperties.BLOCK_MODE_CBC)
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.setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
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.setUserAuthenticationRequired(true)
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.build()
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);
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generator.generateKey();
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print("Key created.");
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} else
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print("Key exists.");
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return true;
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} catch (Exception e) {
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print(e.getMessage());
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}
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return false;
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}
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private boolean getCipher() {
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print("Getting cipher...");
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try {
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cipher = Cipher.getInstance(
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KeyProperties.KEY_ALGORITHM_AES + "/"
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+ KeyProperties.BLOCK_MODE_CBC + "/"
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+ KeyProperties.ENCRYPTION_PADDING_PKCS7);
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return true;
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} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
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e.printStackTrace();
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}
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return false;
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}
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@TargetApi(Build.VERSION_CODES.M)
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private boolean initCipher(int mode) {
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print("Initializing cipher...");
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try {
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keyStore.load(null);
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SecretKey keyspec = (SecretKey) keyStore.getKey(RequestPINActivity.KEY_ALIAS, null);
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if (mode == Cipher.ENCRYPT_MODE) {
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cipher.init(mode, keyspec);
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} else {
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byte[] iv = PINStorage.loadEncryptedIV();
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IvParameterSpec ivspec = new IvParameterSpec(iv);
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cipher.init(mode, keyspec, ivspec);
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}
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return true;
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} catch (KeyPermanentlyInvalidatedException e) {
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e.printStackTrace();
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createNewKey(true); // Retry after clearing entry
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} catch (Exception e) {
|
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e.printStackTrace();
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||||
}
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return false;
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}
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@TargetApi(Build.VERSION_CODES.M)
|
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private boolean initCryptObject() {
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print("Initializing crypt object...");
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try {
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cryptoObject = new FingerprintManager.CryptoObject(cipher);
|
||||
return true;
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||||
} catch (Exception e) {
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||||
e.printStackTrace();
|
||||
}
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return false;
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}
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||||
|
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Dialog dFingerPrintConfirmation = null;
|
||||
|
||||
private void CreateFingerPrintConfirmationDialog() {
|
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// final AlertDialogWrapper.Builder b = new AlertDialogWrapper.Builder(this);
|
||||
// switch (onConfirmAction)
|
||||
// {
|
||||
// case Save:
|
||||
// if( UsePIN2) {
|
||||
// b.setTitle("Confirm new PIN2 saving ");
|
||||
// }else{
|
||||
// b.setTitle("Confirm new PIN saving ");
|
||||
// }
|
||||
// break;
|
||||
// case Delete:
|
||||
// if( UsePIN2 ) {
|
||||
// b.setTitle("Confirm PIN2 deleting");
|
||||
// }else{
|
||||
// b.setTitle("Confirm PIN deleting");
|
||||
// }
|
||||
// break;
|
||||
// case DeleteEncryptedAndSave:
|
||||
// if( UsePIN2 ) {
|
||||
// b.setTitle("Confirm deleting old saved PIN2");
|
||||
// }else {
|
||||
// b.setTitle("Confirm deleting old saved PIN");
|
||||
// }
|
||||
// break;
|
||||
// }
|
||||
// View view = getLayoutInflater().inflate(R.layout.dialog_fingerprint_confirmation, null);
|
||||
// b.setView(view);
|
||||
|
||||
// dFingerPrintConfirmation = b.show();
|
||||
// dFingerPrintConfirmation.setOnCancelListener(new DialogInterface.OnCancelListener() {
|
||||
// @Override
|
||||
// public void onCancel(DialogInterface dialog) {
|
||||
// fingerprintHelper.cancel();
|
||||
// print("Cancel fingerprint confirmation");
|
||||
// }
|
||||
// });
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue