java - opensaml 签名加密验证不成功

Question

我正在尝试对使用 OpenSAML 从身份提供商获取的 SAML2 响应进行签名验证。我正在尝试读取本地文件系统的响应。

这是我的代码:

  DefaultBootstrap.bootstrap();
  BasicParserPool ppMgr = new BasicParserPool();
  ppMgr.setNamespaceAware(true);

 //Read file from the filesystem

 File file1=new File("F:/Softwares/Assertion.xml");
 InputStream inCommonSaml=new FileInputStream(file1);

 // Parse file
Document inCommonSamlDoc = ppMgr.parse(inCommonSaml);
Element metadataRoot = inCommonSamlDoc.getDocumentElement();
UnmarshallerFactory    unmarshallerFactory=configuration.getUnmarshallerFactory();
 Unmarshaller unmarshaller =    unmarshallerFactory.getUnmarshaller(metadataRoot);
 Response  inCommonSamlRes = (Response)  unmarshaller.unmarshall(metadataRoot);

  //Get certificate
   SignatureValidator signatureValidator = new SignatureValidator(cert);
   Signature  signature=inCommonSamlRes.getSignature();
   signatureValidator.validate(signature);


   try {
        BasicX509Credential credential = new BasicX509Credential();

        File file2=new File("F:/Softwares/publicKey.crt");
        InputStream samlCertificate=new FileInputStream(file2);         
          CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
        //    
            @SuppressWarnings("deprecation")
            java.security.cert.X509Certificate certificate = (java.security.cert.X509Certificate) certificateFactory.generateCertificate(samlCertificate);
           // 

            X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec((certificate).getPublicKey().getEncoded());
            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
            PublicKey key = keyFactory.generatePublic(publicKeySpec);


            credential.setPublicKey(key);
            Object obj = (credential).getPublicKey();
            if (obj instanceof RSAPublicKey) {
                BigInteger modulus = ((RSAPublicKey) obj).getModulus();
                BigInteger exponent = ((RSAPublicKey) obj).getPublicExponent();
                System.out.println("modulus");
                System.out.println (org.apache.commons.codec.binary.Base64.encodeBase64String(modulus.toByteArray()));
                System.out.println("public exponent:");
                System.out.println (org.apache.commons.codec.binary.Base64.encodeBase64String(exponent.toByteArray()));

    }
     //     System.out.println ("public key is: //n//r"+ credential.getPublicKey());
            return credential;  



    } catch (Exception e) {
        throw e; //Throws a 'Signature did not validate against the credential's key' exception
    }

注意:我也使用相同的证书(publicKey.crt)来签署断言。
我收到以下错误:签名密码验证未成功。

请告诉我我哪里错了？错误是什么意思？是不是说公钥和私钥是一样的？

谢谢，阿斯维尼 J

Answer 1

我认为您需要从 IdP(身份提供商)服务器获取 .jks 文件。此外，当您从 IDP 获取 POST 的 SAMLResponse 时，此 SAMLResponse 应包含签名(仅供引用 - 将是一个编码字符串，您可以使用 Maven 中央存储库上提供的 Open SAML 库进行解码和读取)。从 获得签名后，您可以使用 OpenSAML 进行验证

sigValidator.validate(response.getSignature());

如果一切正常，此方法会给您消息。引用消息“使用提供的凭证中的 key 验证签名”

您可以点击此链接:http://sureshatt.blogspot.in/2012/11/how-to-read-saml-20-response-with.html获取签名和

(IMP):您的 IDP(身份提供商)应该被发送(可能通过 HTTP POST)，以便您可以从中获取 NameID，即 ClinetId