XSW attacks are losing whitespace in Signature

[pratikd650]

I am trying XSW1 but the signature is turning out to be invalid after the transformation.

Turns out the SAML Raider is losing whitespace, and so the canonicalized output is different. Initial SignedInfo (generated by Shibboleth - notice that there is no indent, but newline after every element)

<ds:SignedInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:CanonicalizationMethod>
<ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"></ds:SignatureMethod>
<ds:Reference URI="#_a544335059b58b98d30e75524e09627c">
<ds:Transforms>
<ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"></ds:Transform>
<ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:Transform>
</ds:Transforms>
<ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></ds:DigestMethod>
<ds:DigestValue>t9htoNyes3QdccTS57Dp1QOO6oTz8MxON+QYqqgIF3I=</ds:DigestValue>
</ds:Reference>
</ds:SignedInfo>

SignedInfo after XSW1. (notice that all the newlines are gone)

<ds:SignedInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:CanonicalizationMethod><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"></ds:SignatureMethod><ds:Reference URI="#_a544335059b58b98d30e75524e09627c"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"></ds:Transform><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></ds:DigestMethod><ds:DigestValue>t9htoNyes3QdccTS57Dp1QOO6oTz8MxON+QYqqgIF3I=</ds:DigestValue></ds:Reference></ds:SignedInfo>

Is there some option to preserve the whitespace?

[lindi2]

This could actually be seen as a duplicate of #7 , right?