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MyUtil.java
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MyUtil.java
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package com.honey.xmlsec;
import org.apache.xml.security.algorithms.SignatureAlgorithm;
import org.apache.xml.security.c14n.Canonicalizer;
import org.apache.xml.security.encryption.XMLCipherParameters;
import org.apache.xml.security.keys.KeyInfo;
import org.apache.xml.security.keys.content.X509Data;
import org.apache.xml.security.signature.XMLSignature;
import org.apache.xml.security.transforms.Transforms;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.XMLUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
public class MyUtil {
public String signWithKeyPair(String sourceXml, KeyPair kp) throws Exception {
PrivateKey privateKey = kp.getPrivate();
Document doc = null;
try (InputStream is = new ByteArrayInputStream(sourceXml.getBytes(Charset.forName("utf-8")))) {
doc = MyXMLUtils.read(is, false);
}
Element root = doc.getDocumentElement();
Element canonElem =
XMLUtils.createElementInSignatureSpace(doc, Constants._TAG_CANONICALIZATIONMETHOD);
canonElem.setAttributeNS(
null, Constants._ATT_ALGORITHM, Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS
);
SignatureAlgorithm signatureAlgorithm =
new SignatureAlgorithm(doc, XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1);
XMLSignature sig =
new XMLSignature(doc, null, signatureAlgorithm.getElement(), canonElem);
root.appendChild(sig.getElement());
Transforms transforms = new Transforms(doc);
transforms.addTransform(Transforms.TRANSFORM_ENVELOPED_SIGNATURE);
sig.addDocument("", transforms, Constants.ALGO_ID_DIGEST_SHA1);
sig.addKeyInfo(kp.getPublic());
sig.sign(privateKey);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
XMLUtils.outputDOMc14nWithComments(doc, bos);
return new String(bos.toByteArray(), "utf-8");
}
public boolean verify(String signedXML) throws Exception {
Document doc = null;
try (InputStream is = new ByteArrayInputStream(signedXML.getBytes(Charset.forName("utf-8")))) {
doc = MyXMLUtils.read(is, false);
}
XPathFactory xpf = XPathFactory.newInstance();
XPath xpath = xpf.newXPath();
xpath.setNamespaceContext(new DSNamespaceContext());
String expression = "//ds:Signature[1]";
Element sigElement =
(Element) xpath.evaluate(expression, doc, XPathConstants.NODE);
XMLSignature signature = new XMLSignature(sigElement, "");
KeyInfo ki = signature.getKeyInfo();
if (ki == null) {
throw new RuntimeException("No keyinfo");
}
PublicKey pk = signature.getKeyInfo().getPublicKey();
if (pk == null) {
throw new RuntimeException("No public key");
}
return signature.checkSignatureValue(pk);
}
public String signWithCert(String sourceXml, PrivateKey privateKey, X509Certificate signingCert) throws Exception {
Document doc = null;
try (InputStream is = new ByteArrayInputStream(sourceXml.getBytes(Charset.forName("utf-8")))) {
doc = MyXMLUtils.read(is, false);
}
Element root = doc.getDocumentElement();
Element canonElem =
XMLUtils.createElementInSignatureSpace(doc, Constants._TAG_CANONICALIZATIONMETHOD);
canonElem.setAttributeNS(
null, Constants._ATT_ALGORITHM, Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS
);
AbstractSignatureAlgorithm signatureAlgorithm =
new BcSignatureAlgorithm(doc, XMLSignature.ALGO_ID_SIGNATURE_RSA_SHA1);//use BcSignatureAlgorithm
XMLSignature sig =
new XMLSignature(doc, null, signatureAlgorithm.getElement(), canonElem);
root.appendChild(sig.getElement());
Transforms transforms = new Transforms(doc);
transforms.addTransform(Transforms.TRANSFORM_ENVELOPED_SIGNATURE);
sig.addDocument("", transforms, Constants.ALGO_ID_DIGEST_SHA1);
//sig.addKeyInfo(signingCert);
X509Data x509data = new X509Data(doc);
x509data.addCertificate(signingCert);
sig.getKeyInfo().addKeyName(signingCert.getSerialNumber().toString());
sig.getKeyInfo().add(x509data);
//sig.sign(privateKey);
signatureAlgorithm.doSign(privateKey,sig.getSignedInfo());
ByteArrayOutputStream bos = new ByteArrayOutputStream();
XMLUtils.outputDOMc14nWithComments(doc, bos);
return new String(bos.toByteArray(), "utf-8");
}
public String signWithCertEcdsa(String sourceXml, PrivateKey privateKey, X509Certificate signingCert) throws Exception {
Document doc = null;
try (InputStream is = new ByteArrayInputStream(sourceXml.getBytes(Charset.forName("utf-8")))) {
doc = MyXMLUtils.read(is, false);
}
Element root = doc.getDocumentElement();
Element canonElem =
XMLUtils.createElementInSignatureSpace(doc, Constants._TAG_CANONICALIZATIONMETHOD);
canonElem.setAttributeNS(
null, Constants._ATT_ALGORITHM, Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS
);
SignatureAlgorithm signatureAlgorithm =
new SignatureAlgorithm(doc, XMLSignature.ALGO_ID_SIGNATURE_ECDSA_RIPEMD160);
XMLSignature sig =
new XMLSignature(doc, null, signatureAlgorithm.getElement(), canonElem);
root.appendChild(sig.getElement());
Transforms transforms = new Transforms(doc);
transforms.addTransform(Transforms.TRANSFORM_ENVELOPED_SIGNATURE);
sig.addDocument("", transforms, XMLCipherParameters.RIPEMD_160);
//sig.addKeyInfo(signingCert);
X509Data x509data = new X509Data(doc);
x509data.addCertificate(signingCert);
sig.getKeyInfo().add(x509data);
sig.sign(privateKey);
//signatureAlgorithm.doSign(privateKey,sig.getSignedInfo());
ByteArrayOutputStream bos = new ByteArrayOutputStream();
XMLUtils.outputDOMc14nWithComments(doc, bos);
return new String(bos.toByteArray(), "utf-8");
}
}