Package septogeddon.pluginquery.utils

Class EncryptionToolkit

java.lang.Object

septogeddon.pluginquery.utils.EncryptionToolkit

public class EncryptionToolkit
extends Object

Encryption toolkit that holds both encryptor and decryptor Cipher

Author:

Thito Yalasatria Sunarya

Constructor Summary

Constructors

Constructor	Description
EncryptionToolkit(Key key)

Method Summary

Modifier and Type	Method	Description
byte[]	encode()	Encode the EncryptionToolkit into byte array.
static Key	generateKey()	Generate random AES key with 256 key size
Cipher	getDecryptor()	Decryption Cipher used to Decrypt byte array
Cipher	getEncryptor()	Encryption Cipher used to Encrypt byte array
Key	getKey()	The key instance
static Key	readKey(File file)	Read key from a File.
void	writeKey(File file)	Save this EncryptionToolkit to a file to load it later.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

EncryptionToolkit

public EncryptionToolkit(Key key)
                  throws NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException

Throws:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

Method Details

generateKey

public static Key generateKey()
                       throws NoSuchAlgorithmException

Generate random AES key with 256 key size

Returns:

Throws:

NoSuchAlgorithmException

readKey

public static Key readKey(File file)
                   throws IOException

Read key from a File. Only file that are encoded using writeKey(File) or encode() can be read cause it contains encoded algorithm name.

Parameters:

file -

Returns:

Throws:

IOException

getKey

public Key getKey()

The key instance

Returns:

encode

public byte[] encode()

Encode the EncryptionToolkit into byte array. The first byte is the length of algorithm name used for the encryption. The next bytes is the algorithm name itself and the encoded key.

Returns:

getEncryptor

public Cipher getEncryptor()

Encryption Cipher used to Encrypt byte array

Returns:

getDecryptor

public Cipher getDecryptor()

Decryption Cipher used to Decrypt byte array

Returns:

writeKey

public void writeKey(File file)
              throws IOException

Save this EncryptionToolkit to a file to load it later.

Parameters:

file -

Throws:

IOException