in app/src/main/java/com/epam/securestorage/core/KeyStoreHelper.java [65:74]
public static SecretKey generatorKey(String alias) throws Exception {
KeyGenParameterSpec keyGenParameterSpec = new KeyGenParameterSpec
.Builder(alias, KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT)
.setBlockModes(KeyProperties.BLOCK_MODE_CBC)
.setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
.build();
KeyGenerator keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, ANDROID_KEY_STORE);
keyGenerator.init(keyGenParameterSpec);
return keyGenerator.generateKey();
}