我已经将我的网站与TFIM集成为SSO。SSO工作正常，但我无法在SAMLResponse中获得签名。它等于零。但它已经存在于SAMLResponse中。当我试图从samlresponse获得签名值时，它给了我nullpointerexception
package com.saml;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.opensaml.Configuration;
import org.opensaml.DefaultBootstrap;
import org.opensaml.saml2.core.Response;
import org.opensaml.saml2.core.Subject;
import org.opensaml.security.SAMLSignatureProfileValidator;
import org.opensaml.xml.ConfigurationException;
import org.opensaml.xml.XMLObject;
import org.opensaml.xml.io.Unmarshaller;
import org.opensaml.xml.io.UnmarshallerFactory;
import org.opensaml.xml.io.UnmarshallingException;
import org.opensaml.xml.security.credential.Credential;
import org.opensaml.xml.security.x509.BasicX509Credential;
import org.opensaml.xml.signature.SignatureValidator;
import org.apache.commons.codec.binary.Base64;
import org.opensaml.xml.validation.ValidationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.xml.sax.SAXException;
public class ReceiveSAMLResponse {
public String receiveSAMLResponse(HttpServletRequest request)
throws ParserConfigurationException, SAXException, IOException,
UnmarshallingException, ValidationException, CertificateException {
/* Getting the response string from HTTP Request object */
String responseString = (String) request.getParameter("SAMLResponse");
/* Decoding Base64 response string to get the XML string */
String responseXml = new String(Base64.decodeBase64(responseString
.getBytes()));
System.out.println(responseXml);
/* Generating SAML Response object from XML string */
try {
DefaultBootstrap.bootstrap();
} catch (ConfigurationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory
.newInstance();
documentBuilderFactory.setNamespaceAware(true);
DocumentBuilder docBuilder = documentBuilderFactory
.newDocumentBuilder();
ByteArrayInputStream is = new ByteArrayInputStream(
responseXml.getBytes());
Document document = docBuilder.parse(is);
Element element = document.getDocumentElement();
UnmarshallerFactory unmarshallerFactory = Configuration
.getUnmarshallerFactory();
Unmarshaller unmarshaller = unmarshallerFactory
.getUnmarshaller(element);
XMLObject xmlObj = unmarshaller.unmarshall(element);
Response response = (Response) xmlObj;
/* Validating the signature on the response */
// validateSignature(response);
/* If validation was successful, get the username from the response. */
Subject subject = response.getAssertions().get(0).getSubject();
String username = subject.getNameID().getValue();
return username;
}
private void validateSignature(Response response)
throws ValidationException, FileNotFoundException,
CertificateException {
SAMLSignatureProfileValidator profileValidator = new SAMLSignatureProfileValidator();
try {
profileValidator.validate(response.getSignature());
} catch (ValidationException e) {
/* Indicates signature did not conform to SAML Signature profile */
e.printStackTrace();
throw e;
}
Credential verificationCredential = getVerificationCredential();
SignatureValidator sigValidator = new SignatureValidator(
verificationCredential);
try {
sigValidator.validate(response.getSignature());
} catch (ValidationException e) {
e.printStackTrace();
throw e;
}
}
private Credential getVerificationCredential()
throws FileNotFoundException, CertificateException {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(
"/pathToYourCertificte"));
CertificateFactory cf = CertificateFactory.getInstance("X509");
X509Certificate cert = (X509Certificate) cf.generateCertificate(bis);
BasicX509Credential x509Credential = new BasicX509Credential();
x509Credential.setPublicKey(cert.getPublicKey());
x509Credential.setEntityCertificate(cert);
Credential credential = x509Credential;
return credential;
}
}
....................................
XML文件中的小响应
<samlp:Response xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Destination="https://10.44.90.29:8443/SAMLShareFile/saml/samlresponse" ID="FIMRSP_604af2be-0150-1ff0-adad-8154af08b58c" InResponseTo="-5346144739450824145" IssueInstant="2015-10-13T08:22:15Z" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://10.44.189.168:444/apjct/sps/NewRelic/saml20</saml:Issuer><samlp:Status><samlp:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"></samlp:StatusCode></samlp:Status><saml:Assertion ID="Assertion-uuid604af281-0150-1512-8c38-8154af08b58c" IssueInstant="2015-10-13T08:22:15Z" Version="2.0"><saml:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">https://10.44.189.168:444/apjct/sps/NewRelic/saml20</saml:Issuer><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="uuid604af289-0150-1dab-a25e-8154af08b58c"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:CanonicalizationMethod><ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"></ds:SignatureMethod><ds:Reference URI="#Assertion-uuid604af281-0150-1512-8c38-8154af08b58c"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"></ds:Transform><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><xc14n:InclusiveNamespaces xmlns:xc14n="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs saml xsi"></xc14n:InclusiveNamespaces></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"></ds:DigestMethod><ds:DigestValue>pMf0E/z1rS9OkTOLc+0aoD7cl30=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>SW9BaJm0rGJAOG62Il1v46YsqocHXNpmcQKAmSIKDX4tRN3EbUHeqFcVfJmmUGDe4uC1H115SOCehQAkJ35lLBnVsda2WHgu4kWdGC8j+kaw0y9zjzngrHZljBpzU2h87zk4X+fGXvtCmBUH7xfrID4tQ6ODdhoWjd6K8s21S50=</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml:Subject><saml:NameID Format="urn:ibm:names:ITFIM:5.1:accessmanager">musaddique</saml:NameID><saml:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><saml:SubjectConfirmationData InResponseTo="-5346144739450824145" NotOnOrAfter="2015-10-13T08:32:15Z" Recipient="https://10.44.90.29:8443/SAMLShareFile/saml/samlresponse"></saml:SubjectConfirmationData></saml:SubjectConfirmation></saml:Subject><saml:Conditions NotBefore="2015-10-13T08:12:15Z" NotOnOrAfter="2015-10-13T08:32:15Z"><saml:AudienceRestriction><saml:Audience>musaddique</saml:Audience></saml:AudienceRestriction></saml:Conditions><saml:AuthnStatement AuthnInstant="2015-10-13T08:22:15Z" SessionIndex="uuid604af260-0150-14b6-8127-8154af08b58c" SessionNotOnOrAfter="2015-10-13T09:22:15Z"><saml:AuthnContext><saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Password</saml:AuthnContextClassRef></saml:AuthnContext></saml:AuthnStatement><saml:AttributeStatement><saml:Attribute Name="AuthenticatingAuthority" NameFormat="urn:oasis:names:tc:SAML:2.0:assertion"><saml:AttributeValue xsi:type="xs:string">musaddique</saml:AttributeValue></saml:Attribute></saml:AttributeStatement></saml:Assertion></samlp:Response>
您的SAML只有断言部分()被签名，所以您应该从断言对象而不是响应对象获得签名:尝试response. getassertions ().get(0). getsignature()。基于SAML 2.0规范，SAML响应必须签名，但响应和断言并非都是必需的。
我在我的SamlProvider中编写了这段代码。我没有使用它，因为Idp没有在saml中请求HTTPS协议和证书，所以它不是一个"认证的解决方案"。我从文件中加载证书，所以你可以直接注入BufferedInputStream。
private Credential getCredential() {
BasicX509Credential credential = null;
try {
// read private key
File privateKeyFile = new File(derFile);
FileInputStream inputStreamPrivateKey = new FileInputStream(privateKeyFile);
byte[] encodedPrivateKey = new byte[(int) privateKeyFile.length()];
inputStreamPrivateKey.read(encodedPrivateKey);
inputStreamPrivateKey.close();
PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(encodedPrivateKey);
RSAPrivateKey privateKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(
privateKeySpec);
// read the certificate
InputStream inStream = new FileInputStream(pemFile);
CertificateFactory cf = CertificateFactory.getInstance("X.509");
X509Certificate cert = (X509Certificate) cf.generateCertificate(inStream);
// create credential
credential = new BasicX509Credential();
credential.setEntityCertificate((java.security.cert.X509Certificate) cert);
credential.setPrivateKey(privateKey);
} catch (Exception e) {
Logger.error("failed getting credential!", e);
}
return credential;
}
希望能有所帮助。