### Question:
EncryptionUtils { public static KeyPair generateKeyPair () throws NoSuchAlgorithmException { final int keySize = 2048; KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA"); keyPairGenerator.initialize(keySize); return keyPairGenerator.genKeyPair(); } protected  EncryptionUtils(); static void init(PublicKey pubKey); static boolean isInitialized(); static byte[] encrypt(PublicKey publicKey, String message); static byte[] encrypt(String message); static byte[] decryptToBytes(PrivateKey privateKey, byte [] encrypted); static String decrypt(PrivateKey privateKey, byte [] encrypted); static PublicKey getPubKeyFromArray(byte[] bytes); static byte[] convertPublicKeyToByteArray(PublicKey publicKey); static KeyPair generateKeyPair();  }### Answer:
@Test public void testGenerateKeyPair () throws NoSuchAlgorithmException { KeyPair keyPair = EncryptionUtils.generateKeyPair(); assertNotNull(keyPair); assertNotNull(keyPair.getPublic()); assertNotNull(keyPair.getPrivate()); }