79RFDdN7

1        button.setOnClickListener(new View.OnClickListener() {
2            @Override
3            public void onClick(View v) {
4                try {
5                    keyStore = KeyStore.getInstance("AndroidKeyStore");
6                } catch (KeyStoreException e) {
7                    e.printStackTrace();
8                }
9
10                try {
11                    keyStore.load(null);
12                } catch (CertificateException e) {
13                    e.printStackTrace();
14                } catch (IOException e) {
15                    e.printStackTrace();
16                } catch (NoSuchAlgorithmException e) {
17                    e.printStackTrace();
18                }
19
20                Cipher cipher3 = null;
21                try {
22                    cipher3 = getCipher();
23                } catch (NoSuchPaddingException e) {
24                    e.printStackTrace();
25                } catch (NoSuchAlgorithmException e) {
26                    e.printStackTrace();
27                }
28
29                SecretKey key = null;
30                try {
31                    key = (SecretKey) keyStore.getKey(KEY_NAME,
32                            null);
33                } catch (KeyStoreException e) {
34                    e.printStackTrace();
35                } catch (NoSuchAlgorithmException e) {
36                    e.printStackTrace();
37                } catch (UnrecoverableKeyException e) {
38                    e.printStackTrace();
39                }
40
41                try {
42                    cipher3.init(Cipher.ENCRYPT_MODE,key);
43                } catch (InvalidKeyException e) {
44                    e.printStackTrace();
45                }
46
47
48            }
49        });