QCKnHEVs

1try {
2        mKeyStore = KeyStore.getInstance("AndroidKeyStore");
3    } catch (KeyStoreException e) {
4        throw new RuntimeException("Failed to get an instance of KeyStore", e);
5    }
6    try {
7        mKeyGenerator = KeyGenerator
8                .getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
9    } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
10        throw new RuntimeException("Failed to get an instance of KeyGenerator", e);
11    }    
12
13mKeyStore.load(null);
14SecretKey key = (SecretKey) mKeyStore.getKey(keyName, null); 
15     
16try {
17        mKeyGenerator = KeyGenerator
18            .getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore")
19    } catch (e: NoSuchAlgorithmException) {
20        throw RuntimeException("Failed to get an instance of KeyGenerator", e)
21    } catch (e: NoSuchProviderException) {
22        throw RuntimeException("Failed to get an instance of KeyGenerator", e)
23    }
24
25mKeyStore?.load(null)
26val key = mKeyStore?.getKey(keyName, null) as? SecretKey