<?xml version="1.0" encoding="UTF-8"?>
<sr:Request xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:sr="http://www.dccinterface.co.uk/ServiceUserGateway" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaVersion="5.4">
  <sr:Header>
    <sr:RequestID>90-B3-D5-1F-30-01-00-00:00-DB-12-34-56-78-90-A0:1006</sr:RequestID>
    <sr:CommandVariant>1</sr:CommandVariant>
    <sr:ServiceReference>6.23</sr:ServiceReference>
    <sr:ServiceReferenceVariant>6.23</sr:ServiceReferenceVariant>
  </sr:Header>
  <sr:Body>
    <sr:UpdateSecurityCredentialsCoS>
      <sr:SupplierFloorSeqNumber>0</sr:SupplierFloorSeqNumber>
      <sr:SupplierPrepaymentTopUpFloorSeqNumber>0</sr:SupplierPrepaymentTopUpFloorSeqNumber>
      <sr:SupplierReplacementCertificates>
        <sr:DigitalSigningCertificate>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</sr:DigitalSigningCertificate>
        <sr:KeyAgreementCertificate>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</sr:KeyAgreementCertificate>
        <sr:KeyAgreementTopUpCertificate>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</sr:KeyAgreementTopUpCertificate>
      </sr:SupplierReplacementCertificates>
      <sr:CertificationPathCertificates>
        <sr:Certificate>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</sr:Certificate>
      </sr:CertificationPathCertificates>
      <sr:ApplyTimeBasedCPVChecks>true</sr:ApplyTimeBasedCPVChecks>
      <sr:ImportMPxN>1312345678333</sr:ImportMPxN>
    </sr:UpdateSecurityCredentialsCoS>
  </sr:Body>
  <ds:Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
    <!-- NOTE: The digest, signature and serial number values below are placeholders and should not be used for actual authentication purposes. -->
    <ds:SignedInfo>
      <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
      <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256"/>
      <ds:Reference URI="">
        <ds:Transforms>
          <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
        </ds:Transforms>
        <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
        <ds:DigestValue>ZGVmYXVsdA==</ds:DigestValue>
      </ds:Reference>
    </ds:SignedInfo>
    <ds:SignatureValue>ZGVmYXVsdA==</ds:SignatureValue>
    <ds:KeyInfo>
      <ds:X509Data>
        <ds:X509IssuerSerial>
          <ds:X509IssuerName>CN=U1, OU=07</ds:X509IssuerName>
          <ds:X509SerialNumber>1234567890</ds:X509SerialNumber>
        </ds:X509IssuerSerial>
      </ds:X509Data>
    </ds:KeyInfo>
  </ds:Signature>
</sr:Request>
