xmlsec无法验证签名

Question

我试图用xmlsec1实用程序验证XML (附在问题的底部)签名。但是，当执行命令时

xmlsec1 --verify test.xml

我得到了下面的堆栈跟踪：

func=xmlSecXPathDataExecute:file=xpath.c:line=273:obj=unknown:subj=xmlXPtrEval:error=5:libxml2库函数failed:expr=xpointer(id('uuid-73c06e86-88d2-4204-91f4-3d484bc782cc')) func=xmlSecXPathDataListExecute:file=xpath.c:line=373:obj=unknown:subj=xmlSecXPathDataExecute:error=1:xmlsec库函数失败: func=xmlSecTransformXPathExecute:file=xpath.c:line=483:obj=xpointer:subj=xmlSecXPathDataExecute:error=1:xmlsec库函数失败func=xmlSecTransformDefaultPushXml:file=transforms.c:line=2411:obj=xpointer:subj=xmlSecTransformExecute:error=1:xmlsec库函数失败func=xmlSecTransformCtxXmlExecute:file=transforms.c:line=1242:obj=unknown:subj=xmlSecTransformPushXml:error=1:xmlsec库函数failed:transform=xpointerfunc=xmlSecTransformCtxExecute:file=transforms.c:line=1302:obj=unknown:subj=xmlSecTransformCtxXmlExecute:error=1:xmlsec库函数失败: func=xmlSecDSigReferenceCtxProcessNode:file=xmldsig.c:line=1589:obj=unknown:subj=xmlSecTransformCtxExecute:error=1:xmlsec库函数失败: func=xmlSecDSigCtxProcessSignedInfoNode:file=xmldsig.c:line=822:obj=unknown:subj=xmlSecDSigReferenceCtxProcessNode:error=1:xmlsec库函数failed:node=Reference func=xmlSecDSigCtxProcessSignatureNode:file=xmldsig.c:line=563:obj=unknown:subj=xmlSecDSigCtxProcessSignedInfoNode:error=1:xmlsec库函数失败: func=xmlSecDSigCtxVerify:file=xmldsig.c:line=382:obj=unknown:subj=xmlSecDSigCtxSignatureProcessNode:error=1:xmlsec库函数失败:错误:签名失败错误SignedInfo引用(ok/all)：0/1清单引用(ok/all)：0/0错误:验证文件"test.xml“‘失败

基于堆栈跟踪，我认为ID有问题。

xmlsec1 --verify --id-attr:ID 
"urn:oasis:names:tc:SAML:2.0:protocol:Response" test.xml

生成以下堆栈跟踪

func=xmlSecOpenSSLEvpDigestVerify:file=digests.c:line=249:obj=sha1:subj=unknown:error=12:invalid数据:数据和摘要不匹配SignedInfo引用(ok/all)：0/1表示引用(ok/all)：0/0错误:验证文件"test.xml“失败

下面是test.xml文件的修整内容：

<saml2p:Response xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" Destination="http://localhost/login" ID="uuid-73c06e86-88d2-4204-91f4-3d484bc782cc" InResponseTo="_bbaf45ef713be7a8c8701e41118ec2278cbf32828f" IssueInstant="2016-02-29T14:16:31.142Z" Version="2.0">
    <saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">idp-name</saml2:Issuer>
    <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="#uuid-73c06e86-88d2-4204-91f4-3d484bc782cc">
                <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>H9ffPJ6/jq25p13BcziR0hNLkGg=</ds:DigestValue>
            </ds:Reference>
        </ds:SignedInfo>
        <ds:SignatureValue>FegjeG..pJEQ==</ds:SignatureValue>
        <ds:KeyInfo>
            <ds:X509Data>
                <ds:X509Certificate>MIIFIj..mV7A==</ds:X509Certificate>
            </ds:X509Data>
            <ds:X509Data>
                <ds:X509Certificate>MIIFDj..5uLcw=</ds:X509Certificate>
            </ds:X509Data>
            <ds:X509Data>
                <ds:X509Certificate>MIIE/z..3IDhA=</ds:X509Certificate>
            </ds:X509Data>
            <ds:X509Data>
                <ds:X509Certificate>MIIEkT..h5/WrQ8</ds:X509Certificate>
            </ds:X509Data>
        </ds:KeyInfo>
    </ds:Signature>
    <saml2:Assertion xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" ID="uuid-201bfc86-e7d7-4dca-bdb5-2263b2d27c22" IssueInstant="2016-02-29T14:16:01.175Z" Version="2.0">
        <saml2:Issuer>idp-name</saml2:Issuer>
        <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="#uuid-201bfc86-e7d7-4dca-bdb5-2263b2d27c22">
                    <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>EJzD3pVZwkvFkh8IX0xyF7tmP2k=</ds:DigestValue>
                </ds:Reference>
            </ds:SignedInfo>
            <ds:SignatureValue>b3ONeh..zOEw==</ds:SignatureValue>
            <ds:KeyInfo>
                <ds:X509Data>
                    <ds:X509Certificate>MIIFIj..mV7A==</ds:X509Certificate>
                </ds:X509Data>
                <ds:X509Data>
                    <ds:X509Certificate>MIIFDj..5uLcw=</ds:X509Certificate>
                </ds:X509Data>
                <ds:X509Data>
                    <ds:X509Certificate>MIIE/z..3IDhA=</ds:X509Certificate>
                </ds:X509Data>
                <ds:X509Data>
                    <ds:X509Certificate>MIIEkT..5/WrQ8</ds:X509Certificate>
                </ds:X509Data>
            </ds:KeyInfo>
        </ds:Signature>
    </saml2:Assertion>
</saml2p:Response>

你能解释一下我做错了什么吗？如何用xmlsec验证签名的XML文件？

Answer 1

我找到了一种正确的方法来验证这一点，下面是如何：

首先，必须指定ID属性：

xmlsec1 --verify --id-attr:ID "urn:oasis:names:tc:SAML:2.0:protocol:Response" test.xml

对我的XML文件执行此命令会导致错误invalid data:data and digest do not match。

我一直在针对SAML (Firefox )返回的输出调用此命令(格式为)--这将更改签名，从而使xmlsec1打印错误。

对原始(解密)内容调用xmlsec1很好。