private Address[] getAddressList(Key key) throws Exception {
Address[] result = new Address[backupNbr];
for (byte i = 0; i < backupNbr; i++) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
baos.write(i);
baos.write(key.getBytes());
Address address = new Address(hash(baos.toByteArray()));
baos.close();
result[i] = address;
}
return result;
}
/**
* Decrypts a given byte stream using the AES cipher, CBC mode, and PKCS5 Padding algorithms.
*
* @param input - Bytes to be decrypted
* @param key - Symmetric key to decrypt
* @param iv - Initialization vector
* @return decrypted byte stream
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidKeyException
* @throws InvalidAlgorithmParameterException
* @throws ShortBufferException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
* @throws UnsupportedEncodingException
*/
public static byte[] AESCBCdecrypt(byte[] input, Key key, byte[] iv)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, ShortBufferException, IllegalBlockSizeException,
BadPaddingException, UnsupportedEncodingException {
int plaintext_len;
byte[] keyBytes, plaintext;
SecretKeySpec keySpec;
IvParameterSpec ivSpec;
Cipher cipher;
keyBytes = key.getBytes();
keySpec = new SecretKeySpec(keyBytes, "AES");
ivSpec = new IvParameterSpec(iv);
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
plaintext = new byte[cipher.getOutputSize(input.length)];
plaintext_len = cipher.update(input, 0, input.length, plaintext, 0);
plaintext_len += cipher.doFinal(plaintext, plaintext_len);
return plaintext;
}
