SOAP format for USI Webservice

I am developing a communication process with a unique student identifier (USI) web service. I have a Vanguard token, courtesy of good code (SoapClient avoiding) from Sergey Vidusov (thanks!), And I am trying to use the contents of that token in my (also SoapClient avoiding) SOAP request to the USI service. I'm using the "sample security header" from V2.0 (P79) technical services contract as a template and trying to fill in the blanks from the token and despite several dozen slightly different iterations, I keep getting:

An error occurred when verifying security for the message.

For more information, see the SOAP error section of the response. I wouldn't be surprised to learn that I'm going to get it wrong, but at this point I'm on the sidelines.

From the token, I take the binary secret and use it as the Signature value and SecurityTokenReference->KeyIdentifier

as the KeyIdentifier in my request. I also copied the entire section EncryptedAssertion

from the token into the request.

My (presumably valid) XML is like

<s:Envelope
xmlns:s="http://www.w3.org/2003/05/soap-envelope"
xmlns:a="http://www.w3.org/2005/08/addressing"
xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<s:Header>
    <a:Action s:mustUnderstand="1">http://usi.gov.au/ws/2015/VerifyUSI</a:Action>
    <a:MessageID>urn:uuid-594a3e4f2c463</a:MessageID>
    <a:ReplyTo>
        <a:Address>http://www.w3.org/2005/08/addressing/anonymous</a:Address>
    </a:ReplyTo>
    <a:To s:mustUnderstand="1"> http://usi.gov.au/ws/2015/VerifyUSI </a:To>
    <o:Security s:mustUnderstand="1"
        xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
        <u:Timestamp u:Id="_0">
            <u:Created>2017-06-21T09:37:19.000Z</u:Created>
            <u:Expires>2017-06-21T10:37:19.000Z</u:Expires>
        </u:Timestamp>
        <EncryptedAssertion
            xmlns="urn:oasinametc:SAML:2.0:assertion">
            <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element" xmlnxenc="http://www.w3.org/2001/04/xmlenc#">
                <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes256-cbc"/>
                <KeyInfo
                    xmlns="http://www.w3.org/2000/09/xmldsig#">
                    <EncryptedKey xmlne="http://www.w3.org/2001/04/xmlenc#">
                        <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p">
                            <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
                        </EncryptionMethod>
                        <KeyInfo>
                            <SecurityTokenReference xmlno="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
                                <X509Data>
                                    <X509IssuerSerial>
                                        <X509IssuerName>CN=Australian Government Notary Services OCA, OU=For Development purposes ONLY, OU=Australian Authentication and Notary Services, O=Australian Government, C=AU</X509IssuerName>
                                        <X509SerialNumber>137894267415199651126496945754681728351</X509SerialNumber>
                                    </X509IssuerSerial>
                                </X509Data>
                            </SecurityTokenReference>
                        </KeyInfo>
                        <CipherData>
                            <CipherValue>Bc30iHzG4b9ypeC0q8+wvCRox6jTplCg4hKMUpNAXhmhzQyCfFgb3ROihGMB6wLb1moTT/+WpxsMljpeBTKu3oYo8anxwQQf6921Sz7lJCGUrWWMg9IZxq9qEfE85DBqo7tuhs7qkpHlgsUEC/D3IMRycze7x2wJphs6AFBtNDZwVogrQNyp76AUVCGqMSy7EA5woNOuPZqYYHWUDU7/Lv9Jzp6ccOwYXpmnwsW7dMecN6sJbZeopCNf9FuVHS0OJi/l7uadi3VDwRJuiPEB09tETvYNZpUDf/BFQPnHyuWfrjj4nRUKEQx9KcE092+z23n2M8PQmuuEAyRAOnWGNg==</CipherValue>
                        </CipherData>
                    </EncryptedKey>
                </KeyInfo>
                <CipherData>
                    <CipherValue>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</CipherValue>
                </CipherData>
            </EncryptedData>
        </EncryptedAssertion>
        <Signature
            xmlns="http://www.w3.org/2000/09/xmldsig#">
            <SignedInfo>
                <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></CanonicalizationMethod>
                <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#hmac-sha1"></SignatureMethod>
                <Reference URI="#_0">
                    <Transforms>
                        <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></Transform>
                    </Transforms>
                    <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"></DigestMethod>
                    <DigestValue>3d5GbpTJJ2uX3t4fJz3oT3TuaUA=</DigestValue>
                </Reference>
            </SignedInfo>
            <SignatureValue>3zexIO6yp7PTD1M7H7BD3rURd2Yj35ELKRSSuLqVHso=</SignatureValue>
            <KeyInfo>
                <o:SecurityTokenReference k:TokenType="http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.1#SAMLV1.1"
                    xmlns:k="http://docs.oasis-open.org/wss/oasis-wss-wssecurity-secext-1.1.xsd">
                    <o:KeyIdentifier ValueType="http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.0#SAMLAssertionID">_ef36244c-da95-47ed-9abf-ddce3c85edd1</o:KeyIdentifier>
                </o:SecurityTokenReference>
            </KeyInfo>
        </Signature>
    </o:Security>
</s:Header>
<s:Body>
    <soap:Body
        xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
        <u:VerifyUSI
            xmlns:u="http://usi.gov.au/2015/ws">
            <u:OrgCode>970003</u:OrgCode>
            <u:USI>ABCDEFGHJK</u:USI>
            <u:FirstName>John</u:FirstName>
            <u:FamilyName>Smith</u:FamilyName>
            <u:DateOfBirth>1971-12-01</u:DateOfBirth>
        </u:VerifyUSI>
    </soap:Body>
</s:Body>

      

        
        
        
      

    

I feel like I'm close ... but I need another key to move me forward.