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POXML Digital Signature Java
 

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    <p>i need to digital sign my XML messages in JAVA: The resulting XML signature should have the following format:</p> <pre><code>&lt;Signature xmlns="http://www.w3.org/2000/09/xmldsig#"&gt; &lt;SignedInfo&gt; &lt;CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /&gt; &lt;SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" /&gt; &lt;Reference URI=""&gt; &lt;Transforms&gt; &lt;Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/&gt; &lt;/Transforms&gt; &lt;DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" /&gt; &lt;DigestValue&gt;DsP5NLca+plhp9tZvGwykfb2whQYt3CQ5sbsVd9Q9aE=&lt;/DigestValue&gt; &lt;/Reference&gt; &lt;/SignedInfo&gt; &lt;SignatureValue&gt; LrfE0po3YPvVxB/m77iBWWiR07Ghiuhuj7tO2C2LKqZK2cLrAiidt+3tjbJ3m16quCFxfh7bmjRtJsGi7a3HKtK qY4auqrjNB62AtYrxvm+7Qd/cRacom4e3M9uF9JD1zTfoGun9w4WDfDrDaoZ+ZwUgNtf6sTYO5Ctcj5sYcD0= &lt;/SignatureValue&gt; &lt;KeyInfo&gt; &lt;KeyName&gt;7D665C81ABBE1A7D0E525BFC171F04D276F07BF2&lt;/KeyName&gt; &lt;/KeyInfo&gt; &lt;/Signature&gt; </code></pre> <p>Can anyone provide some help with code ??</p> <p>Edit:</p> <p>i came up with this code :</p> <pre><code>private static Document sign(Document doc) throws InstantiationException, IllegalAccessException, ClassNotFoundException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, KeyException, MarshalException, XMLSignatureException, FileNotFoundException, TransformerException { String providerName = System.getProperty("jsr105Provider", "org.jcp.xml.dsig.internal.dom.XMLDSigRI"); XMLSignatureFactory fac = XMLSignatureFactory.getInstance("DOM", (Provider) Class.forName(providerName).newInstance()); Reference ref = fac.newReference("", fac.newDigestMethod(DigestMethod.SHA256, null)); // Create the SignedInfo SignedInfo si = fac.newSignedInfo( fac.newCanonicalizationMethod(CanonicalizationMethod.EXCLUSIVE, (C14NMethodParameterSpec) null), fac.newSignatureMethod(SignatureMethod.RSA_SHA1, null), Collections.singletonList(ref)); KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA"); kpg.initialize(512); KeyPair kp = kpg.generateKeyPair(); KeyInfoFactory kif = fac.getKeyInfoFactory(); KeyValue kv = kif.newKeyValue(kp.getPublic()); KeyInfo ki = kif.newKeyInfo(Collections.singletonList(kv)); DOMSignContext dsc = new DOMSignContext(kp.getPrivate(), doc.getDocumentElement()); XMLSignature signature = fac.newXMLSignature(si, ki); signature.sign(dsc); TransformerFactory tf = TransformerFactory.newInstance(); Transformer trans = tf.newTransformer(); trans.transform(new DOMSource(doc), new StreamResult(new FileOutputStream("mySignedFile"))); return doc; } </code></pre> <p>but the Problem is i am getting :</p> <pre><code>&lt;SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/&gt; </code></pre> <p>and not :</p> <pre><code>&lt;SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" /&gt; </code></pre>
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