kNT0zShe

1void main1() throws LoginException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException, UnsupportedEncodingException {
2          String test = "hello";
3          Cipher cipher2 = Cipher.getInstance("RSA");
4         //key
5         byte [] decodedPublicKey = Base64.decode(myPublickKey, 4);
6         byte[] decodedPrivateKey = Base64.decode(myPrivateKey,4);
7
8         SecretKey originalPublicKey = new SecretKeySpec(decodedPublicKey, 0, decodedPublicKey.length, "RSA");
9         SecretKeySpec originalPrivateKey = new SecretKeySpec(decodedPrivateKey, 0, decodedPrivateKey.length, "RSA");
10
11
12          cipher2.init(Cipher.ENCRYPT_MODE, originalPublicKey);
13
14        byte[] bytes2 = cipher2.doFinal(test.getBytes());
15
16       Cipher decript2 = Cipher.getInstance("RSA");
17
18
19         decript2.init(Cipher.DECRYPT_MODE,originalPrivateKey);
20
21      byte[] decriptedBytes2 = decript2.doFinal(bytes2);
22
23       for (byte b : decriptedBytes2)kodMess+=(char) b;
24
25         Toast.makeText(ChatActivity.this, kodMess, Toast.LENGTH_SHORT).show();
26
27       }