xml – 使用OpenSAML和OpenSSO的签名验证问题

我们在服务提供商网站上使用OpenSAML为我们的客户提供SSO.我们的客户(ID提供商)正在使用OpenSSO. OpenSSO发布的SAML响应在签名元素方面略有不同,因为它不受命名空间限定.这似乎与OpenSAML并不顺利,它从中返回null
samlResponse.getSignature()方法,由于我无法验证签名.

导致问题的SamlReponse的签名片段

<Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    <SignedInfo>
        <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
        <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
        <Reference URI="#s2d10cccbd58d1f78c2c76c74c82a236548c929ffd">
            <Transforms>
                <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
                <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
            </Transforms>
            <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
            <DigestValue>j+KBoDOtEcyCquPTxRCXoBulStQ=</DigestValue>
        </Reference>
    </SignedInfo>
    <SignatureValue>Dv+owuZfGFymGGrw2gHA3/7GVC6mXt8JMW+tOvmtnjTRJZaDE+Nb2NCngio1Tnqu4LWnvVrry4Wk... 6QcIJi/kGc4YFMSQj/Q=</SignatureValue>
    <KeyInfo>
        <X509Data>
            <X509Certificate>MIIEhDCCA+2gAwIBAgIQXxhipi2wpPxWi7MTVfFVHDANBgkqhkiG9w0BAQUFADCBujEfMB0GA1UE... 78Q/lRQuBhHMy02lKctnwjBeEYA=</X509Certificate>
        </X509Data>
    </KeyInfo>
</Signature>

来自另一个可用的SAML响应的签名片段

<dsig:Signature xmlns="http://www.w3.org/2000/09/xmldsig#" xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
    <dsig:SignedInfo>
        <dsig:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
        <dsig:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
        <dsig:Reference URI="#id-TtLltjcBSOAJ6OipumUEj8o0Qag-">
            <dsig:Transforms>
                <dsig:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
                <dsig:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
            </dsig:Transforms>
            <dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
            <dsig:DigestValue>5c95zhA139qzMvZA2A445F3LWaU=</dsig:DigestValue>
        </dsig:Reference>
    </dsig:SignedInfo>
    <dsig:SignatureValue>JsmRFJn1CjClHs4rf0hrwKzOq6ZtmnOEm/PNiaJvYurko/ZP+PApWhk55x0unIVwZ6XDv3k8Dj81WqUl07J0Dkvzp71bccIgiGTRzoNPT71nBAXxJmZiXz51JWctg13zjxP0oQMSpWytKCrFkCkJ0So3RQl3WixYV3miK0YjJnM=</dsig:SignatureValue>
    <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    </ds:KeyInfo>
</dsig:Signature>

如您所见,OpenSSO服务器中的签名片段不包含SAML绑定规范中指定的命名空间限定符.

对我来说,最后一个选项是对发布的SAMLResponse进行一些按摩,以便将命名空间添加到签名元素中,以使OpenSAML库工作.

关于如何使用OpenSAML库解决这个问题的任何想法都受到高度赞赏.

提前致谢
CJ

Element assertionElem = assertion.getDOM();

if (!assertionElem.hasAttribute("xmlns:saml")) {
   assertionElem.setAttribute("xmlns:saml","urn:oasis:names:tc:SAML:2.0:assertion");
}

if (!assertionElem.hasAttribute("xmlns:ds")) {
   assertionElem.setAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
}

String assertionXml = Serializer.serializeXml(assertionElem,true,true);