Package com.mku.salmon

Class Header

java.lang.Object

com.mku.salmon.Header

public class Header
extends Object

Header embedded within the AesStream. Header contains nonce and other information for decrypting the stream.

Field Summary

Fields

Modifier and Type	Field	Description
static final long	HEADER_LENGTH	Header length

Constructor Summary

Constructors

Constructor	Description
Header(byte[] headerData)	Initialize the header with data

Method Summary

Modifier and Type	Method	Description
int	getChunkSize()	Get the chunk size.
byte[]	getHeaderData()	Get the raw header data.
byte[]	getMagicBytes()	Get the magic bytes
byte[]	getNonce()	Get the nonce.
byte	getVersion()	Get the Salmon format version
static Header	readHeaderData(RandomAccessStream stream)	Parse the header data from the stream
void	setChunkSize(int chunkSize)	Set the header chunk size
void	setNonce(byte[] nonce)	Set the nonce to be used.
void	setVersion(byte version)	Set the Salmon format version
static Header	writeHeader(RandomAccessStream stream, byte[] nonce, int chunkSize)	Write header data to the stream

Methods inherited from class java.lang.Object

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

Field Details

HEADER_LENGTH

public static final long HEADER_LENGTH

Header length

See Also:

• Constant Field Values

Constructor Details

Header

public Header(byte[] headerData)

Initialize the header with data

Parameters:

headerData - The header data

Method Details

getNonce

public byte[] getNonce()

Get the nonce.

Returns:

The nonce

getChunkSize

public int getChunkSize()

Get the chunk size.

Returns:

Chunk size

getHeaderData

public byte[] getHeaderData()

Get the raw header data.

Returns:

Header data

getVersion

public byte getVersion()

Get the Salmon format version

Returns:

The format version

getMagicBytes

public byte[] getMagicBytes()

Get the magic bytes

Returns:

Magic bytes

readHeaderData

public static Header readHeaderData(RandomAccessStream stream)
                             throws IOException

Parse the header data from the stream

Parameters:

stream - The stream.

Returns:

The header data.

Throws:

IOException - Thrown if there is an IO error.

writeHeader

public static Header writeHeader(RandomAccessStream stream,
 byte[] nonce,
 int chunkSize)
                          throws IOException

Write header data to the stream

Parameters:

stream - The stream to write to

nonce - The nonce

chunkSize - The chunk size

Returns:

The header

Throws:

IOException - If an error occurs

setChunkSize

public void setChunkSize(int chunkSize)

Set the header chunk size

Parameters:

chunkSize - The chunk size

setVersion

public void setVersion(byte version)

Set the Salmon format version

Parameters:

version - The format version

setNonce

public void setNonce(byte[] nonce)

Set the nonce to be used.

Parameters:

nonce - The nonce