org.alfresco.deployment.transformers

Class SampleEncryptionTransformer

java.lang.Object

org.alfresco.deployment.transformers.SampleEncryptionTransformer

All Implemented Interfaces:

DeploymentTransportInputFilter, DeploymentTransportOutputFilter

public class SampleEncryptionTransformer
extends Object
implements DeploymentTransportInputFilter, DeploymentTransportOutputFilter

Sample payload transformer for the File System Receiver (FSR). Encrypts the contents of the file being transmitted over the wire to a File System Receiver. The intention of this class is to be simple sample code rather than being highly secure. In particular this class uses password based encryption via a symetric key rather than a more secure (and complex) key strategy. The password will be held in plain text in the spring configuration files. Nevertheless this class will give some protection against network snooping. Enabling TripleDES requires "unlimited strength policy files" for that algorithm to be available in a Sun JVM.

Author:

mrogers

See Also:

javax.crypto

Constructor Summary

Constructors

Constructor and Description
SampleEncryptionTransformer()

Method Summary

Methods

Modifier and Type	Method and Description
InputStream	addFilter(InputStream in, String path, String mimeType, String encoding) Decrypts inbound stream,
OutputStream	addFilter(OutputStream out, String path, String mimeType, String encoding) Encrypted outgoing stream
String	getCipherName()
int	getIterationCount()
String	getPassword()
void	setCipherName(String cipherName) The name of the cipher to use such as "PBEWithMD5AndDES".
void	setIterationCount(int iterationCount)
void	setPassword(String password) Sets the password

Methods inherited from class java.lang.Object

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

Constructor Detail

SampleEncryptionTransformer

public SampleEncryptionTransformer()

Method Detail

addFilter

public OutputStream addFilter(OutputStream out,
                     String path,
                     String mimeType,
                     String encoding)

Encrypted outgoing stream

Specified by:

addFilter in interface DeploymentTransportOutputFilter

Parameters:

out - the stream to encrypt

path - the path of the file to encrypt

mimeType - the encoding of the file

encoding - the mimeType of the file

Returns:

the filtered output stream

addFilter

public InputStream addFilter(InputStream in,
                    String path,
                    String mimeType,
                    String encoding)

Decrypts inbound stream,

Specified by:

addFilter in interface DeploymentTransportInputFilter

Parameters:

out - the stream to decrypt

path - the path of the file to decrypt

Returns:

the filtered input stream

setCipherName

public void setCipherName(String cipherName)

The name of the cipher to use such as "PBEWithMD5AndDES".

Parameters:

cipherName - the name of the cipher to use

getCipherName

public String getCipherName()

setPassword

public void setPassword(String password)

Sets the password

Parameters:

password - the password used to generate a key

getPassword

public String getPassword()

setIterationCount

public void setIterationCount(int iterationCount)

getIterationCount

public int getIterationCount()