vHkHHwKV

1public Boolean validateKeys(Boolean checkFingerPrintChanges) {
2    if (checkFingerPrintChanges && Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
3        Cipher cipher;
4        try {
5            cipher = Cipher.getInstance(
6                KeyProperties.KEY_ALGORITHM_AES + "/"
7                + KeyProperties.BLOCK_MODE_CBC + "/"
8                + KeyProperties.ENCRYPTION_PADDING_PKCS7);
9        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
10            return false;
11        }
12
13        if (keyStore == null) {
14            return false;
15        }
16        try {
17            SecretKey key = (SecretKey) keyStore.getKey(CHECK_KEY_NAME, null);
18            cipher.init(Cipher.ENCRYPT_MODE, key);
19            return true;
20        } catch (Exception e) {
21            if (e instanceof KeyPermanentlyInvalidatedException) {
22                deleteAllEntries(true);
23            }
24            return false;
25        }
26    }
27    return true;
28}