7xaF0cMB

1package com.example.fingerfinal;
2
3import androidx.appcompat.app.AppCompatActivity;
4import androidx.core.content.ContextCompat;
5
6import android.Manifest;
7import android.annotation.TargetApi;
8import android.app.KeyguardManager;
9import android.content.Context;
10import android.content.SharedPreferences;
11import android.content.pm.PackageManager;
12import android.hardware.fingerprint.FingerprintManager;
13import android.os.Build;
14import android.os.Bundle;
15import android.security.keystore.KeyGenParameterSpec;
16import android.security.keystore.KeyPermanentlyInvalidatedException;
17import android.security.keystore.KeyProperties;
18import android.telephony.TelephonyManager;
19import android.view.View;
20import android.widget.Button;
21import android.widget.ImageView;
22import android.widget.TextView;
23import android.widget.Toast;
24import android.content.Context;
25import android.telephony.TelephonyManager;
26import android.view.View;
27
28import java.io.IOException;
29import java.io.UnsupportedEncodingException;
30import java.security.InvalidAlgorithmParameterException;
31import java.security.InvalidKeyException;
32import java.security.KeyStore;
33import java.security.KeyStoreException;
34import java.security.NoSuchAlgorithmException;
35import java.security.NoSuchProviderException;
36import java.security.UnrecoverableKeyException;
37import java.security.cert.CertificateException;
38import java.util.UUID;
39
40import javax.crypto.BadPaddingException;
41import javax.crypto.Cipher;
42import javax.crypto.IllegalBlockSizeException;
43import javax.crypto.KeyGenerator;
44import javax.crypto.NoSuchPaddingException;
45import javax.crypto.SecretKey;
46
47import android.provider.Settings.Secure;
48
49import static com.example.fingerfinal.methods.bytetoString;
50import static com.example.fingerfinal.methods.generateSalt;
51
52public class MainActivity extends AppCompatActivity {
53
54
55    private TextView mHeadingLabel;
56    private ImageView mFingerprintImage;
57    private TextView mParaLabel;
58
59    private FingerprintManager fingerprintManager;
60    private KeyguardManager keyguardManager;
61
62
63    private KeyStore keyStore;
64    private Cipher cipher;
65    private String KEY_NAME = "AndroidKey";
66    private Context context;
67    Button button;
68    String mess = "witam";
69    FingerprintHandler fingerprintHandler;
70    @Override
71    protected void onCreate(Bundle savedInstanceState) {
72        super.onCreate(savedInstanceState);
73        setContentView(R.layout.activity_main);
74        mHeadingLabel = (TextView) findViewById(R.id.headingLabel);
75        mFingerprintImage = (ImageView) findViewById(R.id.fingerprintImage);
76        mParaLabel = (TextView) findViewById(R.id.paraLabel);
77        button = (Button) findViewById(R.id.button);
78        button.setOnClickListener(new View.OnClickListener() {
79            @Override
80            public void onClick(View v) {
81                try {
82                    keyStore = KeyStore.getInstance("AndroidKeyStore");
83                } catch (KeyStoreException e) {
84                    e.printStackTrace();
85                }
86
87                try {
88                    keyStore.load(null);
89                } catch (CertificateException e) {
90                    e.printStackTrace();
91                } catch (IOException e) {
92                    e.printStackTrace();
93                } catch (NoSuchAlgorithmException e) {
94                    e.printStackTrace();
95                }
96
97                Cipher cipher3 = null;
98                try {
99                    cipher3 = getCipher();
100                } catch (NoSuchPaddingException e) {
101                    e.printStackTrace();
102                } catch (NoSuchAlgorithmException e) {
103                    e.printStackTrace();
104                }
105
106                SecretKey key = null;
107                try {
108                    key = (SecretKey) keyStore.getKey("AndroidKey",
109                            null);
110                } catch (KeyStoreException e) {
111                    e.printStackTrace();
112                } catch (NoSuchAlgorithmException e) {
113                    e.printStackTrace();
114                } catch (UnrecoverableKeyException e) {
115                    e.printStackTrace();
116                }
117
118                try {
119                    cipher3.init(Cipher.ENCRYPT_MODE,key);
120                    FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher);
121                    FingerprintHandler fingerprintHandler = new FingerprintHandler(MainActivity.this);
122                    fingerprintHandler.startAuth(fingerprintManager, cryptoObject);
123                } catch (InvalidKeyException e) {
124                    e.printStackTrace();
125                }
126
127
128            }
129        });
130
131        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
132
133            fingerprintManager = (FingerprintManager) getSystemService(FINGERPRINT_SERVICE);
134            keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
135
136            if(!fingerprintManager.isHardwareDetected()){
137
138               mParaLabel.setText("Nie odnaleziono skanera w urządzeniu");
139
140            } else if (ContextCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED){
141
142                mParaLabel.setText("Brak uprawnień do skanera");
143
144            } else if (!keyguardManager.isKeyguardSecure()){
145
146                mParaLabel.setText("Dodaj blokade w telefonie");
147
148            } else if (!fingerprintManager.hasEnrolledFingerprints()){
149
150                mParaLabel.setText("Dodaj przynajmniej jeden odcisk palca");
151
152            } else {
153
154                mParaLabel.setText("Umiesc palec w celu weryfikacaji");
155
156                SharedPreferences FingerContent = getSharedPreferences("test", 0);
157                String test = FingerContent.getString("test", "");
158                if (test == "") {
159                    Toast.makeText(MainActivity.this, "Witam", Toast.LENGTH_SHORT).show();
160                    generateKey();
161                    SharedPreferences.Editor editor = FingerContent.edit();
162                    editor.putString("test", "siema");
163                    editor.apply();
164                }
165
166                if (cipherInit()){
167
168                    FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher);
169                    FingerprintHandler fingerprintHandler = new FingerprintHandler(this);
170                    fingerprintHandler.startAuth(fingerprintManager, cryptoObject);
171                }
172            }
173
174        }
175
176    }
177
178    @TargetApi(Build.VERSION_CODES.M)
179    private void generateKey() {
180        try {
181
182            keyStore = KeyStore.getInstance("AndroidKeyStore");
183            KeyGenerator keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
184
185            keyStore.load(null);
186            keyGenerator.init(new
187                    KeyGenParameterSpec.Builder(KEY_NAME,
188                    KeyProperties.PURPOSE_ENCRYPT |
189                            KeyProperties.PURPOSE_DECRYPT)
190                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
191                    .setUserAuthenticationRequired(true)
192                    .setEncryptionPaddings(
193                            KeyProperties.ENCRYPTION_PADDING_PKCS7)
194                    .build());
195            keyGenerator.generateKey();
196
197        } catch (KeyStoreException | IOException | CertificateException
198                | NoSuchAlgorithmException | InvalidAlgorithmParameterException
199                | NoSuchProviderException e) {
200
201            e.printStackTrace();
202
203        }
204
205    }
206    @TargetApi(Build.VERSION_CODES.M)
207    public boolean cipherInit() {
208        try {
209            cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
210        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
211            throw new RuntimeException("Błąd Ciphera", e);
212        }
213
214        try {
215            KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
216            keyStore.load(null);
217
218            SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME,
219                    null);
220            cipher.init(Cipher.ENCRYPT_MODE, key);
221
222            return true;
223
224        } catch (KeyPermanentlyInvalidatedException e) {
225            return false;
226        } catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
227            throw new RuntimeException("Błąd inicjalizacji Ciphera", e);
228        }
229
230    }
231    private Cipher getCipher() throws NoSuchPaddingException, NoSuchAlgorithmException {
232        return Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/"
233                + KeyProperties.BLOCK_MODE_CBC + "/"
234                + KeyProperties.ENCRYPTION_PADDING_PKCS7);
235    }
236
237
238
239}