@Test public void encrypt_decrypt() throws Exception { KeyPair keyPair = KeyPairUtil.generateKeyPair("RSA", 1024); PrivateKey privateKey = keyPair.getPrivate(); PublicKey publicKey = keyPair.getPublic(); HybridEncryptedData encryptedData = HybridEncryptionUtil.encryptString("hello", publicKey); String decryptedData = HybridEncryptionUtil.decryptString(encryptedData, privateKey); assertEquals("hello", decryptedData); }