com.github.mervick.aes_everywhere

Class AbstractAes256

java.lang.Object

com.github.mervick.aes_everywhere.AbstractAes256

Direct Known Subclasses:

Aes256, Aes256

public abstract class AbstractAes256
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected static byte[]	SALTED

Constructor Summary

Constructors

Constructor and Description
AbstractAes256()

Method Summary

Modifier and Type	Method and Description
protected static byte[]	_decrypt(byte[] data, byte[] passphrase) Internal decrypt function
protected static byte[]	_encrypt(byte[] input, byte[] passphrase) Internal encrypt function
protected static byte[]	concat(byte[] a, byte[] b) Concatenate bytes
protected static Object[]	deriveKeyAndIv(byte[] passphrase, byte[] salt) Derive key and iv

Methods inherited from class java.lang.Object

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

Field Detail

SALTED

protected static final byte[] SALTED

Constructor Detail

AbstractAes256

public AbstractAes256()

Method Detail

_encrypt

protected static byte[] _encrypt(byte[] input,
                                 byte[] passphrase)
                          throws Exception

Internal encrypt function

Parameters:

input - Input text to encrypt

passphrase - The passphrase

Returns:

Encrypted data

Throws:

Exception - Throws exceptions

_decrypt

protected static byte[] _decrypt(byte[] data,
                                 byte[] passphrase)
                          throws Exception

Internal decrypt function

Parameters:

data - Text in bytes to decrypt

passphrase - The passphrase

Returns:

Decrypted data in bytes

Throws:

Exception - Throws exceptions

deriveKeyAndIv

protected static Object[] deriveKeyAndIv(byte[] passphrase,
                                         byte[] salt)
                                  throws Exception

Derive key and iv

Parameters:

passphrase - Passphrase

salt - Salt

Returns:

Array of key and iv

Throws:

Exception - Throws exceptions

concat

protected static byte[] concat(byte[] a,
                               byte[] b)

Concatenate bytes

Parameters:

a - First array

b - Second array

Returns:

Concatenated bytes