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<p class=MsoNormal>Greetings!&nbsp; <o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>I am trying to encrypt an element of a saml artifact (the
assertion)&#8230; I have tried using the following xpath:<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>--node-xpath /samlp:Response/saml:Assertion<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>This works in perls XML::XPath to identify the appropriate
node, but I get an undefined namespace prefix when trying to encrypt.&nbsp; I
have pared down the xml to make sure there was nothing interfering and still no
luck:<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>/apps/xmlsec/bin/xmlsec1 encrypt --privkey-pem keys/private.key&nbsp;
--pubkey-pem keys/pub.key&nbsp; --session-key des-192&nbsp; --xml-data saml-artifact.xml
--output doc-encrypted-xpath.xml --node-xpath /samlp:Response/saml:Assertion
session-key-template.xml <o:p></o:p></p>

<p class=MsoNormal>XPath error : Undefined namespace prefix<o:p></o:p></p>

<p class=MsoNormal>xmlXPathEval: evaluation failed<o:p></o:p></p>

<p class=MsoNormal>Error: failed to evaluate xpath expression<o:p></o:p></p>

<p class=MsoNormal>Error: failed to load file &quot;saml-artifact.xml&quot;<o:p></o:p></p>

<p class=MsoNormal>Error: failed to encrypt file with template
&quot;session-key-template.xml&quot;<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal># content of saml-artifact.xml<o:p></o:p></p>

<p class=MsoNormal>&lt;?xml version=&quot;1.0&quot;
encoding=&quot;UTF-8&quot;?&gt;<o:p></o:p></p>

<p class=MsoNormal>&lt;samlp:Response
xmlns:samlp=&quot;urn:oasis:names:tc:SAML:2.0:protocol&quot;
ID=&quot;djlmjbkjflgnbankboaepihbcckcgcpkmlgfmbpc&quot; Version=&quot;2.0&quot;
IssueInstant=&quot;2009-05-22T18:23:51Z&quot; Destination=&quot;https://somedestination/post&quot;&gt;<o:p></o:p></p>

<p class=MsoNormal>&nbsp;&nbsp;&nbsp; &lt;saml:Assertion
xmlns:saml=&quot;urn:oasis:names:tc:SAML:2.0:assertion&quot;
Version=&quot;2.0&quot;
xml:id=&quot;ngaognjiljmkbelegfgnighebokoakanaalhnepj&quot;
ID=&quot;ngaognjiljmkbelegfgnighebokoakanaalhnepj&quot; IssueInstant=&quot;2009-05-22T18:23:51Z&quot;&gt;<o:p></o:p></p>

<p class=MsoNormal>&nbsp;&nbsp;&nbsp; &lt;/saml:Assertion&gt;<o:p></o:p></p>

<p class=MsoNormal>&lt;/samlp:Response&gt;<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>Can you point me in the right direction?<o:p></o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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