net.cnri.dobj

Class DESEncryption

java.lang.Object

net.cnri.dobj.ConnectionEncryption

net.cnri.dobj.DESEncryption

public class DESEncryption
extends ConnectionEncryption

DESEncryption objects are capable of encrypting/decrypting data based on a secret key.

Constructor Summary

Constructors

Constructor and Description
DESEncryption(DOConnection conn)

Method Summary

Methods

Modifier and Type	Method and Description
void	initParameters(HeaderSet request, HeaderSet response) Set up the encryption mechanism and put the parameters into the given HeaderSet so that they can be communicated to the other side.
void	processIncomingChunk(java.nio.ByteBuffer buf) Decrypts the incoming chunk of bytes and puts the result back into the given ByteBuffer for reading.
java.nio.ByteBuffer	processOutgoingChunk(java.nio.ByteBuffer buf) Processes the outgoing chunk of bytes and returns the processed version.
void	setParameters(HeaderSet parameters) Set up the parameters for the encryption/decryption process.

Methods inherited from class net.cnri.dobj.ConnectionEncryption

constructInstance, getRandom

Methods inherited from class java.lang.Object

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

Constructor Detail

DESEncryption

public DESEncryption(DOConnection conn)

Method Detail

initParameters

public void initParameters(HeaderSet request,
                  HeaderSet response)
                    throws java.lang.Exception

Set up the encryption mechanism and put the parameters into the given HeaderSet so that they can be communicated to the other side. The "cryptsecretkey" parameter is encrypted using the public key that is included in the request argument.

Specified by:

initParameters in class ConnectionEncryption

Throws:

java.lang.Exception

setParameters

public void setParameters(HeaderSet parameters)
                   throws java.lang.Exception

Set up the parameters for the encryption/decryption process. The parameters should include a hex-encoded "secretkey" value, as well as an optional "cipherparams" value to indicate the algorithm

Throws:

java.lang.Exception

processIncomingChunk

public void processIncomingChunk(java.nio.ByteBuffer buf)
                          throws java.security.GeneralSecurityException

Description copied from class: ConnectionEncryption

Decrypts the incoming chunk of bytes and puts the result back into the given ByteBuffer for reading.

Specified by:

processIncomingChunk in class ConnectionEncryption

Throws:

java.security.GeneralSecurityException

processOutgoingChunk

public java.nio.ByteBuffer processOutgoingChunk(java.nio.ByteBuffer buf)
                                         throws java.security.GeneralSecurityException

Processes the outgoing chunk of bytes and returns the processed version. Note: This implementation re-uses the returned value so this method should not be called from multiple threads.

Specified by:

processOutgoingChunk in class ConnectionEncryption

Throws:

java.security.GeneralSecurityException

See Also:

ConnectionEncryption.processOutgoingChunk(ByteBuffer)