EqMvuWPC

1private SecretKey createKey() {
2    try {
3        KeyGenerator keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
4        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
5            keyGenerator.init(new KeyGenParameterSpec.Builder("Key", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
6                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
7                    .setUserAuthenticationRequired(true)            //burayı kaldırırsan screen locka gerek kalmaz
8                    .setUserAuthenticationValidityDurationSeconds(5)
9                    .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
10                    .build());
11            return keyGenerator.generateKey();
12        }
13    } catch (NoSuchAlgorithmException | NoSuchProviderException | InvalidAlgorithmParameterException e) {
14        throw new RuntimeException("Failed to create a symmetric key", e);
15    }
16
17}