I think you are using 256 bit encryption with the limited strenth jurisdiction files.
See: Java Cryptography Extension (JCE), Unlimited Strength Jurisdiction Policy Files 1.4.2 (http://java.sun.com/j2se/1.4.2/download.html#docs) Regards, Mike "huang zhimin" <[EMAIL PROTECTED]> wrote on 09/21/2007 10:13:16 AM: > public void encrypt(Document document) throws Exception { > KeyStore ks = getKeyStore(); > X509Certificate certificate = getCertificate(ks); > String algorithmURI = XMLCipher.AES_256; > > Element rootElement = document.getDocumentElement(); > > XMLCipher xmlCipher = XMLCipher.getInstance(algorithmURI); > xmlCipher.init(XMLCipher.ENCRYPT_MODE, certificate.getPublicKey ()); > > EncryptedData encryptedData = xmlCipher.getEncryptedData(); > KeyInfo keyInfo = new KeyInfo(document); > encryptedData.setKeyInfo(keyInfo); > xmlCipher.doFinal(document, rootElement, true); > } > > I have do it, but get the exception > > Exception was java.security.InvalidKeyException: Illegal key size or > default parameters > at org.apache.xml.security.encryption.XMLCipher. > encryptData(Unknown Source) > at org.apache.xml.security.encryption.XMLCipher. > encryptData(Unknown Source) > at org.apache.xml.security.encryption.XMLCipher. > encryptElementContent(Unknown Source) > at org.apache.xml.security.encryption.XMLCipher.doFinal (Unknown Source) > at org.jtang.service.security.engine.SecurityEngine. > encrypt(SecurityEngine.java:121) > at org.jtang.service.security.engine.SecurityEngineTest. > testEncrypt(SecurityEngineTest.java:141) > > What's wrong? > On 9/21/07, Daniele Gagliardi <[EMAIL PROTECTED] > wrote: > If you're using asymmetric cryptography, why do you want to use private > key for encryption? In this way everyone who has the public key (which > is PUBLIC) can decrypt the xml. > For xml encryption, you can use the very good examples in apache xml > signature package (you can found these in > xml-security-1_4_1/src_samples/org/apache/xml/security/samples/encryption > directory of the apache distribution in > http://xml.apache.org/security/dist/java-library/ ) > > huang zhimin ha scritto: > > Can anybody give me an example to encrypt xml with private key? > > > > -- > > http://sourceforge.net/projects/mycodeline/ > > http://rubyforge.org/projects/ropenwiki/ > > > > -- > http://sourceforge.net/projects/mycodeline/ > http://rubyforge.org/projects/ropenwiki/
