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(VB.NET UWP/WinRT) Verify Multiple Signatures in XML

Demonstrates how to verify multiple signatures within a single XML document.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

'  A sample XML file containing multiple signatures is available at:
'  https://www.chilkatsoft.com/exampleData/document.signed.bes.cs.xml

Dim http As New Chilkat.Http
Dim sbXml As New Chilkat.StringBuilder
Dim success As Boolean = Await http.QuickGetSbAsync("https://www.chilkatsoft.com/exampleData/document.signed.bes.cs.xml",sbXml)
If (success <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


'  Load the XML containing the signature to be verified.
Dim verifier As New Chilkat.XmlDSig
success = verifier.LoadSignatureSb(sbXml)
If (success <> True) Then
    Debug.WriteLine(verifier.LastErrorText)
    Exit Sub
End If


'  How many Signatures exist in this XML?
Debug.WriteLine("Number of XML signatures = " & verifier.NumSignatures)

'  Let's show the XML nicely indented, so we can make sense of it.
'  Loading the XML into an XML parser and re-emitting with nice formatting
'  changes whitespace that breaks the signatures.  We're only doing this
'  for the example to examine this XML, which contains 2 ds:Signature's
'  and each signature has multiple references.

'  This is what we have:
'  (scroll down to continue with this example..)

'  <?xml version="1.0" encoding="UTF-8" ?>
'  <collection Id="root">
'      <album>
'          <title>Questions, unanswered</title>
'          <artist>Steve and the flubberblubs</artist>
'          <year>1989</year>
'          <t:tracks xmlns:t="http://test.xades4j/tracks">
'              <t:song length="4:05" tracknumber="1">
'                  <t:title>What do you know?</t:title>
'                  <t:artist>Steve and the flubberblubs</t:artist>
'                  <t:lastplayed>2006-10-17-08:31</t:lastplayed>
'              </t:song>
'              <t:song length="3:45" tracknumber="2">
'                  <t:title>Who do you know?</t:title>
'                  <t:artist>Steve and the flubberblubs</t:artist>
'                  <t:lastplayed>2006-10-17-08:35</t:lastplayed>
'              </t:song>
'              <t:song length="5:14" tracknumber="3">
'                  <t:title>When do you know?</t:title>
'                  <t:artist>Steve and the flubberblubs</t:artist>
'                  <t:lastplayed>2006-10-17-08:39</t:lastplayed>
'              </t:song>
'              <t:song length="4:19" tracknumber="4">
'                  <t:title>Do you know?</t:title>
'                  <t:artist>Steve and the flubberblubs</t:artist>
'                  <t:lastplayed>2006-10-17-08:44</t:lastplayed>
'              </t:song>
'          </t:tracks>
'      </album>
'      <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad">
'          <ds:SignedInfo>
'              <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
'              <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
'              <ds:Reference Id="xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-ref0" URI="#root">
'                  <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>rD/g8soqKz8EiPUBhEWfcQacS0ta4ULHX3dKMEH6ZoQ=</ds:DigestValue>
'              </ds:Reference>
'              <ds:Reference Type="http://uri.etsi.org/01903#SignedProperties" URI="#xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-signedprops">
'                  <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                  <ds:DigestValue>pfrrRjkGNPiRF2Bjuj3IJTGSEFYc2PDs6FCNAUJOu8E=</ds:DigestValue>
'              </ds:Reference>
'          </ds:SignedInfo>
'          <ds:SignatureValue Id="xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-sigvalue">Vb/2ay4rX9cytiRCmBkgRkE4d0E05nkM412CwOHvTagCXPZZ2B2ifbmrQznTEU6Jz0dF65j5kU7C
'  bYK+9fMKB0lmqx2kUdWeBa30Rl/3ELKWKOLeDFN91zC3q4a6dtzQGwBidWex+2dO8Z69sBd2aTS6
'  S6nyGs53kTspDHfBeyg=</ds:SignatureValue>
'          <ds:KeyInfo>
'              <ds:X509Data>
'                  <ds:X509Certificate>MIICbTCCAdqgAwIBAgIQpkK0uals+ItHxBlpJuypOTAJBgUrDgMCHQUAMD8xCzAJBgNVBAYTAlBU
'  MQ0wCwYDVQQKEwRJU0VMMQswCQYDVQQLEwJDQzEUMBIGA1UEAxMLSXRlcm1lZGlhdGUwHhcNMTAw
'  NjI1MTc1ODQ5WhcNMzkxMjMxMjM1OTU5WjBCMQswCQYDVQQGEwJQVDENMAsGA1UEChMESVNFTDEL
'  MAkGA1UECxMCQ0MxFzAVBgNVBAMTDkx1aXMgR29uY2FsdmVzMIGfMA0GCSqGSIb3DQEBAQUAA4GN
'  ADCBiQKBgQCpP9acMX69Dbg9ciMLFc5dm1tlpTY9OTNZ/EaCYoGVhh/3+DFgyIbEer6SA24hpREm
'  AhNG9+Ca0AurDPPgb3aKWFY9pj1WcOctis0VsR0YvzqP+2IGFqKDCd7bXFvv2tI0dEvpdc0oO6PF
'  Q02xvJG0kxQf44XljOCjUBU43jkJawIDAQABo28wbTBrBgNVHQEEZDBigBBdbbL4pDKLT56PpOpA
'  /56toTwwOjELMAkGA1UEBhMCUFQxDTALBgNVBAoTBElTRUwxCzAJBgNVBAsTAkNDMQ8wDQYDVQQD
'  EwZUZXN0Q0GCEN00x9qe7SuWQvpLK0/oay8wCQYFKw4DAh0FAAOBgQBSma8g9dQjiQo4WUljRRuG
'  yMUVRyCqW/9oRz8+0EoLNR/AhrIlGqdNbqQ1BkncgNNdqMAus5VD34v/EhgrkgWN5fZajMpYsmcR
'  Ahu4PzJ6hggAlWWMy245JwIYuV0s1Oi39GVTxVNOBIX//AONZlGWO4S2Psb1mqdZ99b/MugsaA==</ds:X509Certificate>
'              </ds:X509Data>
'          </ds:KeyInfo>
'          <ds:Object>
'              <xades:QualifyingProperties xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#" Target="#xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad">
'                  <xades:SignedProperties Id="xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-signedprops">
'                      <xades:SignedSignatureProperties>
'                          <xades:SigningCertificate>
'                              <xades:Cert>
'                                  <xades:CertDigest>
'                                      <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                      <ds:DigestValue>4btVb5gQ5cdcNhGpvDSWQZabPQrR9jf1x8e3YF9Ajss=</ds:DigestValue>
'                                  </xades:CertDigest>
'                                  <xades:IssuerSerial>
'                                      <ds:X509IssuerName>CN=Itermediate,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                      <ds:X509SerialNumber>-119284162484605703133798696662099777223</ds:X509SerialNumber>
'                                  </xades:IssuerSerial>
'                              </xades:Cert>
'                              <xades:Cert>
'                                  <xades:CertDigest>
'                                      <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                      <ds:DigestValue>vm5QpbblsWV7fCYXotPhNTeCt4nk8cLFuF36L5RJ4Ok=</ds:DigestValue>
'                                  </xades:CertDigest>
'                                  <xades:IssuerSerial>
'                                      <ds:X509IssuerName>CN=TestCA,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                      <ds:X509SerialNumber>-46248926895392336918291885380930606289</ds:X509SerialNumber>
'                                  </xades:IssuerSerial>
'                              </xades:Cert>
'                              <xades:Cert>
'                                  <xades:CertDigest>
'                                      <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                      <ds:DigestValue>AUaN+IdhKQqxIVmEOrFwq+Dn22ebTkXJqD3BoOP/x8E=</ds:DigestValue>
'                                  </xades:CertDigest>
'                                  <xades:IssuerSerial>
'                                      <ds:X509IssuerName>CN=TestCA,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                      <ds:X509SerialNumber>-99704378678639105802976522062798066869</ds:X509SerialNumber>
'                                  </xades:IssuerSerial>
'                              </xades:Cert>
'                          </xades:SigningCertificate>
'                          <xades:SignerRole>
'                              <xades:ClaimedRoles>
'                                  <xades:ClaimedRole>CounterSignature maniac</xades:ClaimedRole>
'                              </xades:ClaimedRoles>
'                          </xades:SignerRole>
'                      </xades:SignedSignatureProperties>
'                  </xades:SignedProperties>
'                  <xades:UnsignedProperties>
'                      <xades:UnsignedSignatureProperties>
'                          <xades:CounterSignature>
'                              <ds:Signature Id="xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
'                                  <ds:SignedInfo>
'                                      <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
'                                      <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
'                                      <ds:Reference Id="xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c-ref0" URI="#xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-sigvalue">
'                                          <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                          <ds:DigestValue>Nr5JKCScyqjKWneJw2AC6YmdU/2JZA5Pj40fkVCFbL4=</ds:DigestValue>
'                                      </ds:Reference>
'                                      <ds:Reference Type="http://uri.etsi.org/01903#SignedProperties" URI="#xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c-signedprops">
'                                          <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                          <ds:DigestValue>PJWDlPFdx4TJ5AXT3nIbFa2euboYGM7bpuBmol4nKSQ=</ds:DigestValue>
'                                      </ds:Reference>
'                                  </ds:SignedInfo>
'                                  <ds:SignatureValue Id="xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c-sigvalue">MCcli4l5rAsGeJX2gOmoYDIAXnbszmRwOH94y7kHnpxCwGwoVrCaLSONtgKEy8mj9Ehqa/R5Dj5g
'  DgC77VkNIaRKD613JMnbsaqZ7PD0iVivLvBkasTch4PX92UEbk8EvCgzxvhlgN+L6zSLsv65sFcR
'  lFUGluMtzrqlDKvts38=</ds:SignatureValue>
'                                  <ds:KeyInfo>
'                                      <ds:X509Data>
'                                          <ds:X509Certificate>MIICbTCCAdqgAwIBAgIQpkK0uals+ItHxBlpJuypOTAJBgUrDgMCHQUAMD8xCzAJBgNVBAYTAlBU
'  MQ0wCwYDVQQKEwRJU0VMMQswCQYDVQQLEwJDQzEUMBIGA1UEAxMLSXRlcm1lZGlhdGUwHhcNMTAw
'  NjI1MTc1ODQ5WhcNMzkxMjMxMjM1OTU5WjBCMQswCQYDVQQGEwJQVDENMAsGA1UEChMESVNFTDEL
'  MAkGA1UECxMCQ0MxFzAVBgNVBAMTDkx1aXMgR29uY2FsdmVzMIGfMA0GCSqGSIb3DQEBAQUAA4GN
'  ADCBiQKBgQCpP9acMX69Dbg9ciMLFc5dm1tlpTY9OTNZ/EaCYoGVhh/3+DFgyIbEer6SA24hpREm
'  AhNG9+Ca0AurDPPgb3aKWFY9pj1WcOctis0VsR0YvzqP+2IGFqKDCd7bXFvv2tI0dEvpdc0oO6PF
'  Q02xvJG0kxQf44XljOCjUBU43jkJawIDAQABo28wbTBrBgNVHQEEZDBigBBdbbL4pDKLT56PpOpA
'  /56toTwwOjELMAkGA1UEBhMCUFQxDTALBgNVBAoTBElTRUwxCzAJBgNVBAsTAkNDMQ8wDQYDVQQD
'  EwZUZXN0Q0GCEN00x9qe7SuWQvpLK0/oay8wCQYFKw4DAh0FAAOBgQBSma8g9dQjiQo4WUljRRuG
'  yMUVRyCqW/9oRz8+0EoLNR/AhrIlGqdNbqQ1BkncgNNdqMAus5VD34v/EhgrkgWN5fZajMpYsmcR
'  Ahu4PzJ6hggAlWWMy245JwIYuV0s1Oi39GVTxVNOBIX//AONZlGWO4S2Psb1mqdZ99b/MugsaA==</ds:X509Certificate>
'                                      </ds:X509Data>
'                                  </ds:KeyInfo>
'                                  <ds:Object>
'                                      <xades:QualifyingProperties Target="#xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#">
'                                          <xades:SignedProperties Id="xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c-signedprops">
'                                              <xades:SignedSignatureProperties>
'                                                  <xades:SigningTime>2012-10-13T14:26:18.783+01:00</xades:SigningTime>
'                                                  <xades:SigningCertificate>
'                                                      <xades:Cert>
'                                                          <xades:CertDigest>
'                                                              <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                                              <ds:DigestValue>4btVb5gQ5cdcNhGpvDSWQZabPQrR9jf1x8e3YF9Ajss=</ds:DigestValue>
'                                                          </xades:CertDigest>
'                                                          <xades:IssuerSerial>
'                                                              <ds:X509IssuerName>CN=Itermediate,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                                              <ds:X509SerialNumber>-119284162484605703133798696662099777223</ds:X509SerialNumber>
'                                                          </xades:IssuerSerial>
'                                                      </xades:Cert>
'                                                      <xades:Cert>
'                                                          <xades:CertDigest>
'                                                              <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                                              <ds:DigestValue>vm5QpbblsWV7fCYXotPhNTeCt4nk8cLFuF36L5RJ4Ok=</ds:DigestValue>
'                                                          </xades:CertDigest>
'                                                          <xades:IssuerSerial>
'                                                              <ds:X509IssuerName>CN=TestCA,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                                              <ds:X509SerialNumber>-46248926895392336918291885380930606289</ds:X509SerialNumber>
'                                                          </xades:IssuerSerial>
'                                                      </xades:Cert>
'                                                      <xades:Cert>
'                                                          <xades:CertDigest>
'                                                              <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" />
'                                                              <ds:DigestValue>AUaN+IdhKQqxIVmEOrFwq+Dn22ebTkXJqD3BoOP/x8E=</ds:DigestValue>
'                                                          </xades:CertDigest>
'                                                          <xades:IssuerSerial>
'                                                              <ds:X509IssuerName>CN=TestCA,OU=CC,O=ISEL,C=PT</ds:X509IssuerName>
'                                                              <ds:X509SerialNumber>-99704378678639105802976522062798066869</ds:X509SerialNumber>
'                                                          </xades:IssuerSerial>
'                                                      </xades:Cert>
'                                                  </xades:SigningCertificate>
'                                              </xades:SignedSignatureProperties>
'                                          </xades:SignedProperties>
'                                      </xades:QualifyingProperties>
'                                  </ds:Object>
'                              </ds:Signature>
'                          </xades:CounterSignature>
'                      </xades:UnsignedSignatureProperties>
'                  </xades:UnsignedProperties>
'              </xades:QualifyingProperties>
'          </ds:Object>
'      </ds:Signature>
'  </collection>
' 

'  When I look at the complicated XML above, there are specific things I look at to get a handle
'  on the situation.
' 
'  1) Does the signature already embed the public keys required for verification?
'     Within each <ds:Signature>, look for the <ds:KeyInfo>.  In this case, I can see that
'     each signature contains the full X.509 certificate needed to verify (<ds:KeyInfo><ds:X509Data><ds:X509Certificate>).
'     This means that Chilkat will automatically use the public keys contained within the base64 certificates
'     already present in the signature.
' 
'   2) Look at each <ds:Reference> within each <ds:Signature>.  Do the URI attribute values begin with "#"?
'      If so, then these are same-document references, and there's no need to explicitly fetch external data for reference verification.
'      Chilkat can automatically validate each same-document Reference.
' 
'  So it turns out that this seemingly formidable XML document is easy to verify...
'  Here we go...

Dim i As Integer = 0
While i < verifier.NumSignatures
    '  The Selector property is used to set our context to the Nth signature.
    '  For example, if VerifySignature is called when Selector = 0, then the 1st signature is verified.
    '  If VerifySignature is called when Selector = 1, then the 2nd signature is verified, and so on.
    verifier.Selector = i

    Dim verifyReferenceDigests As Boolean = True

    '  The quick way to validate all references and the signature over the SignedInfo
    '  is to call VerifySignature with verifyReferenceDigests equal to True.
    Dim verified As Boolean = verifier.VerifySignature(verifyReferenceDigests)
    Debug.WriteLine("Signature " & (i + 1) & " and all reference digests verified = " & verified)

    '  We can also get information about each signature.
    '  For example, we could get information about each Reference...
    '  The NumReferences property returns the number of references for the Signature indicated by the Selector property.
    Dim numReferences As Integer = verifier.NumReferences
    Debug.WriteLine("  number of references: " & numReferences)

    Dim j As Integer = 0
    While j < numReferences
        '  Get information about the Jth reference in the Ith signature.
        Debug.WriteLine("  reference " & j & ":")
        '  Is this a same-document or external reference?
        Debug.WriteLine("      is external: " & verifier.IsReferenceExternal(j))
        '  For external references, the URI could be used by an application to fetch the referenced data...
        Debug.WriteLine("      uri: " & verifier.ReferenceUri(j))
        j = j + 1
    End While

    '  We could also get the KeyInfo for each Signature, which might be needed if we need to
    '  load and set a public key that is not physically present within the KeyInfo already.
    Dim keyInfoXml As Chilkat.Xml = verifier.GetKeyInfo()
    Debug.WriteLine("  key info: " & keyInfoXml.GetXml())


    i = i + 1

End While


'  Here's the output of this example:

'  Number of XML signatures = 2
'  Signature 1 and all reference digests verified = True
'    number of references: 2
'    reference 0:
'        is external: False
'        uri: #root
'    reference 1:
'        is external: False
'        uri: #xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-signedprops
'    key info:
'  <ds:KeyInfo>
'      <ds:X509Data>
'          <ds:X509Certificate>
'  MIICbTCCAdqgAwIBAgIQpkK0uals+ItHxBlpJuypOTAJBgUrDgMCHQUAMD8xCzAJBgNVBAYTAlBU
'  MQ0wCwYDVQQKEwRJU0VMMQswCQYDVQQLEwJDQzEUMBIGA1UEAxMLSXRlcm1lZGlhdGUwHhcNMTAw
'  NjI1MTc1ODQ5WhcNMzkxMjMxMjM1OTU5WjBCMQswCQYDVQQGEwJQVDENMAsGA1UEChMESVNFTDEL
'  MAkGA1UECxMCQ0MxFzAVBgNVBAMTDkx1aXMgR29uY2FsdmVzMIGfMA0GCSqGSIb3DQEBAQUAA4GN
'  ADCBiQKBgQCpP9acMX69Dbg9ciMLFc5dm1tlpTY9OTNZ/EaCYoGVhh/3+DFgyIbEer6SA24hpREm
'  AhNG9+Ca0AurDPPgb3aKWFY9pj1WcOctis0VsR0YvzqP+2IGFqKDCd7bXFvv2tI0dEvpdc0oO6PF
'  Q02xvJG0kxQf44XljOCjUBU43jkJawIDAQABo28wbTBrBgNVHQEEZDBigBBdbbL4pDKLT56PpOpA
'  /56toTwwOjELMAkGA1UEBhMCUFQxDTALBgNVBAoTBElTRUwxCzAJBgNVBAsTAkNDMQ8wDQYDVQQD
'  EwZUZXN0Q0GCEN00x9qe7SuWQvpLK0/oay8wCQYFKw4DAh0FAAOBgQBSma8g9dQjiQo4WUljRRuG
'  yMUVRyCqW/9oRz8+0EoLNR/AhrIlGqdNbqQ1BkncgNNdqMAus5VD34v/EhgrkgWN5fZajMpYsmcR
'  Ahu4PzJ6hggAlWWMy245JwIYuV0s1Oi39GVTxVNOBIX//AONZlGWO4S2Psb1mqdZ99b/MugsaA==
'  </ds:X509Certificate>
'      </ds:X509Data>
'  </ds:KeyInfo>
' 
'  Signature 2 and all reference digests verified = True
'    number of references: 2
'    reference 0:
'        is external: False
'        uri: #xmldsig-ff7d9ad7-f36d-4af0-b21a-7db2e840efad-sigvalue
'    reference 1:
'        is external: False
'        uri: #xmldsig-7479045c-8083-49eb-9043-1ac2af4a759c-signedprops
'    key info:
'  <ds:KeyInfo>
'      <ds:X509Data>
'          <ds:X509Certificate>
'  MIICbTCCAdqgAwIBAgIQpkK0uals+ItHxBlpJuypOTAJBgUrDgMCHQUAMD8xCzAJBgNVBAYTAlBU
'  MQ0wCwYDVQQKEwRJU0VMMQswCQYDVQQLEwJDQzEUMBIGA1UEAxMLSXRlcm1lZGlhdGUwHhcNMTAw
'  NjI1MTc1ODQ5WhcNMzkxMjMxMjM1OTU5WjBCMQswCQYDVQQGEwJQVDENMAsGA1UEChMESVNFTDEL
'  MAkGA1UECxMCQ0MxFzAVBgNVBAMTDkx1aXMgR29uY2FsdmVzMIGfMA0GCSqGSIb3DQEBAQUAA4GN
'  ADCBiQKBgQCpP9acMX69Dbg9ciMLFc5dm1tlpTY9OTNZ/EaCYoGVhh/3+DFgyIbEer6SA24hpREm
'  AhNG9+Ca0AurDPPgb3aKWFY9pj1WcOctis0VsR0YvzqP+2IGFqKDCd7bXFvv2tI0dEvpdc0oO6PF
'  Q02xvJG0kxQf44XljOCjUBU43jkJawIDAQABo28wbTBrBgNVHQEEZDBigBBdbbL4pDKLT56PpOpA
'  /56toTwwOjELMAkGA1UEBhMCUFQxDTALBgNVBAoTBElTRUwxCzAJBgNVBAsTAkNDMQ8wDQYDVQQD
'  EwZUZXN0Q0GCEN00x9qe7SuWQvpLK0/oay8wCQYFKw4DAh0FAAOBgQBSma8g9dQjiQo4WUljRRuG
'  yMUVRyCqW/9oRz8+0EoLNR/AhrIlGqdNbqQ1BkncgNNdqMAus5VD34v/EhgrkgWN5fZajMpYsmcR
'  Ahu4PzJ6hggAlWWMy245JwIYuV0s1Oi39GVTxVNOBIX//AONZlGWO4S2Psb1mqdZ99b/MugsaA==
'  </ds:X509Certificate>
'      </ds:X509Data>
'  </ds:KeyInfo>
' 
' 

 

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