Error while encrypting the xml file...pls help

[sachinkataria]

i download the code for encryption of xml file..
but i am getting following error..

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.xml.security.Init.<clinit>(Unknown Source)
at EncryptTool.<clinit>(EncryptTool.java:51)

so, what is that? pls help me..

there is a code for xml encryption:
http://www.devx.com/xml/Article/28701/0/page/6

but, when i execute that i got error.....
so, pls anyone can tell me all the procedures to execute that program..
which jar files need to be download....

pls help me.....

[viviensiu]

for the exception you got, you need to download commons-logging.jar from apache, then add it to your classpath.

if that doesn't work, maybe this will help: http://www.devx.com/xml/Article/28701/0/page/3

[sachinkataria]

ya, it is working now..Thanx for help......

[sachinkataria]

when i am decryption file, it is giving me exception :

Exception in thread "main" java.lang.IllegalArgumentException: No attributes are implemented
at org.apache.crimson.jaxp.DocumentBuilderFactoryImpl.setAttribute(Unknown Source)
at org.apache.xml.security.encryption.XMLCipher$Serializer.deserialize(Unknown Source)
at org.apache.xml.security.encryption.XMLCipher.decryptElement(Unknown Source)
at org.apache.xml.security.encryption.XMLCipher.doFinal(Unknown Source)
at DecryptTool.main(DecryptTool.java:151)

and code is :

Document document = loadEncryptedFile(args[0]);

String namespaceURI = EncryptionConstants.EncryptionSpecNS;
String localName = EncryptionConstants._TAG_ENCRYPTEDDATA;
Element encryptedDataElement =
(Element)document.getElementsByTagNameNS(namespaceURI,
localName).item(0);
Key keyEncryptKey = loadKeyEncryptionKey();

XMLCipher xmlCipher = XMLCipher.getInstance();

xmlCipher.init(XMLCipher.DECRYPT_MODE, null);

xmlCipher.setKEK(keyEncryptKey);

xmlCipher.doFinal(document, encryptedDataElement);

so, what is that ?

pls , help me.......