使用openSAML签名响应

Question

我试图通过对响应而不是断言进行签名来实现SAML2.0。我有三个现有的供应商在断言级别接受我的签名，但是一个新的供应商在协议/响应级别请求它。我已经搜索和调试了大约8个小时，但找不到一个有效的例子来说明我做错了什么。下面的代码清楚地显示了我正在做什么，最后10行左右是我实现的差异(在if /else中)。另外，我注意到我的SignatureValue和DigestValue都是空的。谁能告诉我一些清晰的文档，或者更好的是，一个使用openSAML的有效响应签名的例子？在这一点上，任何帮助都是非常感谢的。

Assertion assertion = OpenSamlHelper.CreateSamlAssertion(
            issuer.trim(), recipient.trim(), domain.trim(), subject.trim(),
            attributes);        


    //
    // Sign
    //
    Credential signingCredential = getSigningCredential(keystore, storetype, storepass, alias, keypass);

    Signature signature = (Signature) Configuration.getBuilderFactory()
                            .getBuilder(Signature.DEFAULT_ELEMENT_NAME)
                            .buildObject(Signature.DEFAULT_ELEMENT_NAME);

    signature.setSigningCredential(signingCredential);
    signature.setSignatureAlgorithm(SignatureConstants.ALGO_ID_SIGNATURE_RSA_SHA1);               
    signature.setCanonicalizationAlgorithm(SignatureConstants.ALGO_ID_C14N_EXCL_OMIT_COMMENTS);



            SecurityConfiguration secConfiguration = Configuration.getGlobalSecurityConfiguration(); 
            NamedKeyInfoGeneratorManager namedKeyInfoGeneratorManager = secConfiguration.getKeyInfoGeneratorManager(); 
            KeyInfoGeneratorManager keyInfoGeneratorManager = namedKeyInfoGeneratorManager.getDefaultManager();
            KeyInfoGeneratorFactory keyInfoGeneratorFactory = keyInfoGeneratorManager.getFactory(signingCredential);
            KeyInfoGenerator keyInfoGenerator = keyInfoGeneratorFactory.newInstance();
            KeyInfo keyInfo = null;
            try {
                keyInfo = keyInfoGenerator.generate(signingCredential);
            } catch  (Exception e) {
                logger.error(e);
            } 
            signature.setKeyInfo(keyInfo);

            String saml = "";
            try {
            MarshallerFactory marshallerFactory = Configuration.getMarshallerFactory();
    if (signatureType == SignatureType.Response) {
        response.setSignature(signature);
                    marshallerFactory.getMarshaller(response).marshall(response);
    }
    if (signatureType == SignatureType.Assertion) {
        assertion.setSignature(signature);
                    marshallerFactory.getMarshaller(assertion).marshall(assertion);
    }
        Signer.signObject(signature);

更新:我用上面的代码得到的XML值没有包含signatureValue或Digest值，如下所示。

<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<ds:Reference URI="#_651cc837-e890-46c7-9cf9-646ffd38aaad">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
<ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/>
</ds:Transform>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue/>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue/>

在将Signer.signObject(signature)；移动到将断言附加到响应之后的某个点之后，我收到以下XML.

<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<ds:Reference URI="#_273e38e9-3b51-4845-8b8b-f0970e3e9bab">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
<ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/>
</ds:Transform>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue>UlVtsjSAvtjOLMbw+HUX9n7FtxM=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>
jM7GxZ77VBHuAatMXLx14s0ExOmmfDpBhCpF8OKV4F3C1BiRutM41aTH25yhgSn+6l4TkK6kEDbFOYI6isvJUhtdVgH4E1xJl0DFfvPJphTF096acvJrLPehpsFd2Ab6sARuV1sbg/gwNFzvlHJWgit5NxHNuFN1qcv3vuhvQ83fOfxxuyLyJrEjpqvbRzwWepHiuTVHlNObrUvjVxEc7AUKPtwTqGlA6y3SdzIDwjN/LsB1V6PWhiMZsbxJx3LUuk5UECOYmRhKQifZWdOdvHoWBq05J54I6RvAplNDTfRBr4AM+tfIz3OXpN6OpKdSC43HRg9LO9bXprui+4CvrQ==
</ds:SignatureValue>

Answer 1

我尝试使用此代码签名和工件响应，只是将entityDescriptor切换为artifactResponse，它工作得很好。https://blog.samlsecurity.com/2012/11/signing-with-opensaml.html

<?xml version="1.0" encoding="UTF-8"?><saml2p:ArtifactResponse xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" Version="2.0">
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:SignedInfo>
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<ds:Reference URI="">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<ds:DigestValue>ZkE02ZnvIqyd+FcfL6PaXNI88Co=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>
<ds:SignatureValue>fDxfW06rbJEFu5nqmsGxwt6O53N8FWwmDOO0e3nUWh0in2TRYD9nj2927pnQZNL4Mk3KAcSWVETUuHX11XWL+MgcosfJd31TR0XEui/F+BbojQlXJRHfD2BfEO9cQCygFSyyOb9tE2FU5noqnx2b3vI5mToam3a135007mAN/t14Jm71EfvvCF9qL2wXI55R8uab0WGqXx1LYSrAjBZq455SH9AIQu+n8L+KaiOzfpjiL+h/5YJ/a+uyiLV6H06TsytowDTBSW67YW110fpoOsD5vgULrZOABmeK6NRZWpI8PK1M+/r6SO0DTEbUiSTYtHz9XBcqbnD9d7ZQ3oZpEQ==</ds:SignatureValue>
<ds:KeyInfo>
<ds:X509Data>
<ds:X509Certificate>MIIDaTCCAlGgAwIBAgIEeL6vczANBgkqhkiG9w0BAQsFADBlMQswCQYDVQQGEwJOTzENMAsGA1UE
CBMET3NsbzENMAsGA1UEBxMET3NsbzEOMAwGA1UEChMFQ2FwcmExDTALBgNVBAsTBGphdmExGTAX
BgNVBAMTEFN0ZWZhbiBSYXNtdXNzb24wHhcNMTIxMTA5MTA1MzU0WhcNMTMwMjA3MTA1MzU0WjBl
MQswCQYDVQQGEwJOTzENMAsGA1UECBMET3NsbzENMAsGA1UEBxMET3NsbzEOMAwGA1UEChMFQ2Fw
cmExDTALBgNVBAsTBGphdmExGTAXBgNVBAMTEFN0ZWZhbiBSYXNtdXNzb24wggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQCJFImFwnmxM28bSTWOIKCIW1nkZ4euYbB+aLFwc8nJZ0Go5+B3
sT4gxF5Cr2/syglO9fwNJH+hdIw9qXTcnZL6THGSlb7Hcci/541z3BdaljZ/DFqcvL6BzsY0uBc+
3ZbOEr+n3wADZ12GW1Pz7GxjZncJZUwDgO7M/wtscd4jZD7iRnRMux8dVbg8O1ywE16GEM/UkwF3
Xz98T4/TiEviPLrb+c5IO7KhZyJWndKOucTYUwhi4EZ169XSN03KMZeiMewxqcW4n1fb+GksN/TE
5Pl0Ci/0gSaAQKYTqAlIZ2TS7oQ0MRnI0jsjsUZDFbznTXBwticfHnoTyHDA4sctAgMBAAGjITAf
MB0GA1UdDgQWBBQUSNk3I5z4oXsByufaV51IgzuFdTANBgkqhkiG9w0BAQsFAAOCAQEAFmsaXdGS
fyHjYZzUrZKnX6xjJpB7UA48gd/0/Tylm1zfp+GeRGV3/hQan3+UuV8zrE9lhDUbgnoFFY2Xebrc
5Ij5DS3pEz8xi+isDCqvHrBGCMQ4G6eRUTxVz4VucY1j8G34+X5KECibyuCGPP1yXZf+57CciSpp
8tWGBPI1mOuCmEdiucMapJmZa8uQo5FqWZXoJ0cQgZZ1BEgNERAcCZ5xqF03tpfgFuIu7/arp77i
JKYWPX/a82feabjeecH+gAsWi8Tt1ixKNeNJklFY1GAllxwoDAYcxjjWxIbRh9Bl5Kaaf3S0da3p
Mkv4S1zTI0Bq/WcR5e0GHUFm4one3g==</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</ds:Signature>
</saml2p:ArtifactResponse>

尝试跳过KeyInfo部件。您没有收到任何编组错误吗？

Answer 2

signature.setEntityCertificate(cert);

和

 KeyInfoGenerator keyInfoGeneratorFactory= keyInfoGeneratorFactory.newInstance();
  if (keyInfoGeneratorFactory instanceof X509KeyInfoGeneratorFactory) {
                ((X509KeyInfoGeneratorFactory) keyInfoGeneratorFactory).setEmitX509Digest(Boolean.TRUE);
                ((X509KeyInfoGeneratorFactory) keyInfoGeneratorFactory).setEmitX509IssuerSerial(Boolean.FALSE);
                ((X509KeyInfoGeneratorFactory) keyInfoGeneratorFactory).setEmitEntityCertificate(Boolean.FALSE);
                ((X509KeyInfoGeneratorFactory) keyInfoGeneratorFactory).setEmitPublicKeyValue(Boolean.FALSE);
                ((X509KeyInfoGeneratorFactory) keyInfoGeneratorFactory).setX509DigestAlgorithmURI(SignatureConstants.ALGO_ID_DIGEST_SHA1);}