Package com.mku.salmon.transform

Class AesDefaultTransformer

java.lang.Object

com.mku.salmon.transform.AesCTRTransformer

com.mku.salmon.transform.AesDefaultTransformer

All Implemented Interfaces:

ICTRTransformer

public class AesDefaultTransformer
extends AesCTRTransformer

Salmon AES transformer based on the javax.crypto routines.

Field Summary

Fields inherited from class com.mku.salmon.transform.AesCTRTransformer

BLOCK_SIZE, EXPANDED_KEY_SIZE

Constructor Summary

Constructors

Constructor	Description
AesDefaultTransformer()

Method Summary

Modifier and Type	Method	Description
int	decryptData(byte[] srcBuffer, int srcOffset, byte[] destBuffer, int destOffset, int count)	Decrypt the data.
int	encryptData(byte[] srcBuffer, int srcOffset, byte[] destBuffer, int destOffset, int count)	Encrypt the data.
void	init(byte[] key, byte[] nonce)	Initialize the default Java AES cipher transformer.

Methods inherited from class com.mku.salmon.transform.AesCTRTransformer

getBlock, getCounter, getExpandedKey, getKey, getNonce, increaseCounter, resetCounter, setExpandedKey, syncCounter

Methods inherited from class java.lang.Object

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

Constructor Details

AesDefaultTransformer

public AesDefaultTransformer()

Method Details

init

public void init(byte[] key,
 byte[] nonce)

Initialize the default Java AES cipher transformer.

Specified by:

init in interface ICTRTransformer

Overrides:

init in class AesCTRTransformer

Parameters:

key - The AES256 key to use.

nonce - The nonce to use.

Throws:

SecurityException - Thrown if there is a security exception

encryptData

public int encryptData(byte[] srcBuffer,
 int srcOffset,
 byte[] destBuffer,
 int destOffset,
 int count)

Encrypt the data.

Parameters:

srcBuffer - The source byte array.

srcOffset - The source byte offset.

destBuffer - The destination byte array.

destOffset - The destination byte offset.

count - The number of bytes to transform.

Returns:

The number of bytes transformed.

Throws:

SecurityException - Thrown if there is a security exception

decryptData

public int decryptData(byte[] srcBuffer,
 int srcOffset,
 byte[] destBuffer,
 int destOffset,
 int count)

Decrypt the data.

Parameters:

srcBuffer - The source byte array.

srcOffset - The source byte offset.

destBuffer - The destination byte array.

destOffset - The destination byte offset.

count - The number of bytes to transform.

Returns:

The number of bytes transformed.

Throws:

SecurityException - Thrown if there is a security exception