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I am working on test cases and getting Signature validation failed error on validating the SAML response .

Please help me in identifying which parameters are responsible for Signature Creation and Validation I am working on test cases and getting Signature validation failed error on validating the SAML response .

I think those should be harmless, but they definitely seem odd, and I wonder if whatever issue is introducing those might be somehow introducing the extra characters into the xml as well? I also took passport-saml out of the equation and implemented some of the same validation logic with xml-crypto in a small test module using the base64 SAMLResponse I captured, I had the same issues.

So at this point, I'm thinking its the canonicalization or the XML DOM parse.

A couple of thoughts: So I added a line in the validate Post Response to remove CRs from the xml before the DOM parsing and it seems to work fine. After discovering that, I compared the value of the SAMLResponse before the base64 to UTF-8 conversion in So I added a line in the validate Post Response to remove CRs from the xml before the DOM parsing and it seems to work fine. After discovering that, I compared the value of the SAMLResponse before the base64 to UTF-8 conversion in After some more playing around, I'm pretty sure that the issue is not the base64 string itself, but that there are CR characters in the encoded XML text.

Creating SAML objects from an XML source is done through a process known as unmarshalling which operates on DOM Elements.

Hope this gets you started, Paul Lemmers Below an edited request that gets through my validating XML parser without errors Version="2.0" Protocol Binding="urn:oasis:names:tc: SAML:2.0:bindings: HTTP-POST" ID="_4dfecfc0-0196-012e-6b90-005056926909" xmlns:samlp="urn:oasis:names:tc: SAML:2.0:protocol" Force Authn="true" Assertion Consumer Service URL="https://xxx/account/saml/clientid" Issue Instant="2011-01-13TZ" Once the other side has fixed this, you may run into more issues.

Hope this gets you started, Paul Lemmers Below an edited request that gets through my validating XML parser without errors Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.

I added in a to get the canon XML that is being hashed for the digest, and the output is this: One thing that concerns is me the ' ' line endings, yet in the console we are also getting the line feeds and other whitespace.

I know next to nothing about XML canonicalization, but I'm wondering if the CRLFs in the SAML Response are not being properly transformed into the Canon XML for hashing.

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