[xmlsec] xmlsec returns error when trying to validate SAML response

Wed Mar 2 08:51:22 PST 2016

As you can see from error, the digest didn't match and signature
was invalid.

Aleksey

On 3/2/16 8:27 AM, Artur Rychlewicz wrote:
> OK, that changes the output, but it is still not validating:
> 
> func=xmlSecOpenSSLEvpDigestVerify:file=digests.c:line=249:obj=sha1:subj=unknown:error=12:invalid
> data:data and digest do not match
> 
> FAIL
> 
> SignedInfo References (ok/all): 0/1
> 
> Manifests References (ok/all): 0/0
> 
> Error: failed to verify file "/tmp/test-new.xml"
> 
> 
> I have generated SAML response moment before invoking command with
> --id-attr that you provided, so the response itself was still valid (not
> obsolete).
> 
> Artur
> 
>> Subject: Re: [xmlsec] xmlsec returns error when trying to validate
> SAML response
>> To: artur513 at outlook.com; xmlsec at aleksey.com
>> From: aleksey at aleksey.com
>> Date: Wed, 2 Mar 2016 07:58:51 -0800
>>
>> It should be
>>
>> --id-attr:ID urn:oasis:names:tc:SAML:2.0:protocol:Response
>>
>> Aleksey
>>
>> On 3/2/16 1:24 AM, Artur Rychlewicz wrote:
>> > Yes, i have tried this, but it didn't help at all.
>> >
>> > Commands (judging from printed stack trace, they're equivalent):
>> > xmlsec1 --verify --id-attr:ID saml2p:Response test.xml
>> > xmlsec1 --verify test.xml
>> >
>> > XML file (trimmed, but you'll get the idea):
>> > <saml2p:Response xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"
>> > ID="uuid-fb4f8863-062c-41bd-95d9-dc7f77ccf453">
>> > <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-fb4f8863-062c-41bd-95d9-dc7f77ccf453">
>> > <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>lAcsILQxRk4LvbSfREkypyI6gMc=</ds:DigestValue>
>> > </ds:Reference>
>> > </ds:SignedInfo>
>> > <ds:SignatureValue>gT/SeC..bjrQ==</ds:SignatureValue>
>> > <ds:KeyInfo>
>> > <ds:X509Data>
>> > <ds:X509Certificate>MII..A==</ds:X509Certificate>
>> > </ds:X509Data>
>> > ..
>> > </ds:KeyInfo>
>> > </ds:Signature>
>> >
>> > According to FAQ, I should have declare name of ID element, but in my
>> > case it is "ID". And yet, it still does display the error. Following the
>> > FAQ, point 3.4 states that I am probably using Visa 3-D files, but
>> > again, that is not an option here.
>> >
>> > It's highly likely that I just do not understand *how* to use xmlsec1
>> > and doing it plain wrong. That said, please take a look and check where
>> > am I wrong.
>> >
>> > Artur
>> >
>> >> Subject: Re: [xmlsec] xmlsec returns error when trying to validate
>> > SAML response
>> >> To: artur513 at outlook.com; xmlsec at aleksey.com
>> >> From: aleksey at aleksey.com
>> >> Date: Tue, 1 Mar 2016 09:30:18 -0800
>> >>
>> >> FAQ, section 3.2 (if I recall correctly).
>> >>
>> >> Aleksey
>> >>
>> >> On 3/1/16 8:57 AM, Artur Rychlewicz wrote:
>> >> >
>> >> >
>> >> > Hello,
>> >> >
>> >> > I've been trying to use xmlsec1 to validate signed XML response
>> >> > containing SAML data.
>> >> >
>> >> > When I execute:
>> >> >
>> >> > xmlsec1 --verify test.xml
>> >> >
>> >> > I receive following stack trace:
>> >> >
>> >> >
>> >
> func=xmlSecXPathDataExecute:file=xpath.c:line=273:obj=unknown:subj=xmlXPtrEval:error=5:libxml2
>> >> > library function
>> >> > failed:expr=xpointer(id('uuid-73c06e86-88d2-4204-91f4-3d484bc782cc'))
>> >> >
>> >
> func=xmlSecXPathDataListExecute:file=xpath.c:line=373:obj=unknown:subj=xmlSecXPathDataExecute:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecTransformXPathExecute:file=xpath.c:line=483:obj=xpointer:subj=xmlSecXPathDataExecute:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecTransformDefaultPushXml:file=transforms.c:line=2411:obj=xpointer:subj=xmlSecTransformExecute:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecTransformCtxXmlExecute:file=transforms.c:line=1242:obj=unknown:subj=xmlSecTransformPushXml:error=1:xmlsec
>> >> > library function failed:transform=xpointer
>> >> >
>> >
> func=xmlSecTransformCtxExecute:file=transforms.c:line=1302:obj=unknown:subj=xmlSecTransformCtxXmlExecute:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecDSigReferenceCtxProcessNode:file=xmldsig.c:line=1589:obj=unknown:subj=xmlSecTransformCtxExecute:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecDSigCtxProcessSignedInfoNode:file=xmldsig.c:line=822:obj=unknown:subj=xmlSecDSigReferenceCtxProcessNode:error=1:xmlsec
>> >> > library function failed:node=Reference
>> >> >
>> >
> func=xmlSecDSigCtxProcessSignatureNode:file=xmldsig.c:line=563:obj=unknown:subj=xmlSecDSigCtxProcessSignedInfoNode:error=1:xmlsec
>> >> > library function failed:
>> >> >
>> >
> func=xmlSecDSigCtxVerify:file=xmldsig.c:line=382:obj=unknown:subj=xmlSecDSigCtxSignatureProcessNode:error=1:xmlsec
>> >> > library function failed:
>> >> > Error: signature failed
>> >> > ERROR
>> >> > SignedInfo References (ok/all): 0/1
>> >> > Manifests References (ok/all): 0/0
>> >> > Error: failed to verify file "test.xml"
>> >> >
>> >> > I do not know how XML signatures work, but I presume that the ID was
>> >> > taken from <saml2p:Response> tag which contains ID with value of
>> >> > "uuid-73c06e86-88d2-4204-91f4-3d484bc782cc". <saml2p:Response>
> element
>> >> > contains <ds:Signature> element which in turn contains <ds:Reference>
>> >> > with parameter URI="#uuid-73c06e86-88d2-4204-91f4-3d484bc782cc".
>> >> >
>> >> > Since I do not need this value/data, I'd like to check signature of
>> >> > <saml2:Assertion> element which also contains it's own
>> > <ds:Signature> value.
>> >> >
>> >> > That said, I'd like to ask you for instruction how to validate
> element I
>> >> > need. Thank you in advance.
>> >> >
>> >> > Best regards,
>> >> > Artur Rychlewicz
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > xmlsec mailing list
>> >> > xmlsec at aleksey.com
>> >> > http://www.aleksey.com/mailman/listinfo/xmlsec
>> >> >
>> >
>> >
>> > _______________________________________________
>> > xmlsec mailing list
>> > xmlsec at aleksey.com
>> > http://www.aleksey.com/mailman/listinfo/xmlsec
>> >
> 
> 
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