net.sf.jrtps.udds.security

Class MACTransformer

java.lang.Object

net.sf.jrtps.udds.security.MACTransformer

All Implemented Interfaces:

Transformer

public class MACTransformer
extends Object
implements Transformer

MacTransformer calculates and appends a HMAC to the end of payload by using javax.crypto.Mac

Author:

mcr70

See Also:

Mac

Field Summary

Fields

Modifier and Type	Field and Description
static int	HMAC_SHA1
static String	HMAC_SHA1_NAME
static int	HMAC_SHA256
static String	HMAC_SHA256_NAME

Method Summary

Modifier and Type	Method and Description
RTPSByteBuffer	decode(Key key, SecurePayload payload) Decodes a given SecurePayload
SecurePayload	encode(Key key, RTPSByteBuffer bb) Encodes RTPSByteBuffer into SecurePayload.
String	getName() Gets the name of this transformer.
int	getTransformationKind() Gets the transformation kind used by this transformer.

Methods inherited from class java.lang.Object

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

Field Detail

HMAC_SHA1

public static final int HMAC_SHA1

See Also:

Constant Field Values

HMAC_SHA256

public static final int HMAC_SHA256

See Also:

Constant Field Values

HMAC_SHA1_NAME

public static final String HMAC_SHA1_NAME

See Also:

Constant Field Values

HMAC_SHA256_NAME

public static final String HMAC_SHA256_NAME

See Also:

Constant Field Values

Method Detail

encode

public SecurePayload encode(Key key,
                            RTPSByteBuffer bb)
                     throws SecurityException

Description copied from interface: Transformer

Encodes RTPSByteBuffer into SecurePayload.

Specified by:

encode in interface Transformer

Parameters:

key - Key

bb - RTPSByteBuffer RTPSByteBuffer to encode. Position should be placed at the end of buffer.

Returns:

SecurePayload

Throws:

SecurityException - on SecurityException

decode

public RTPSByteBuffer decode(Key key,
                             SecurePayload payload)
                      throws SecurityException

Description copied from interface: Transformer

Decodes a given SecurePayload

Specified by:

decode in interface Transformer

Parameters:

key - Key

payload - Payload to decode

Returns:

RTPSByteBuffer

Throws:

SecurityException - on SecurityException

getTransformationKind

public int getTransformationKind()

Description copied from interface: Transformer

Gets the transformation kind used by this transformer. Kind of the transformation is transferred to remote entity, so that remote entity can associate a correct Transformer to decode incoming message

Specified by:

getTransformationKind in interface Transformer

Returns:

transformationKind

getName

public String getName()

Description copied from interface: Transformer

Gets the name of this transformer. Name of the transformer may be used in configuration file.

Specified by:

getName in interface Transformer

Returns:

Name of the transformer