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Ruby Requires Chilkat v11.0.0+

Sign SOAP XML using a wsse:SecurityTokenReference

See more XML Digital Signatures Examples

This example signs SOAP XML such that the KeyInfo in the XML Signature is a wsse:SecurityTokenReference to the X.509 certificate embedded elsewhere in the SOAP XML.

Chilkat Ruby Downloads

Ruby
require 'chilkat'

success = false

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

#  To begin, we'll need a PFX containing a certificate and private key, and the SOAP XML to be signed.
#  Chilkat provides sample data at chilkatsoft.com and chilkatdownload.com, and our first step is to download.

#  -------------------------------------------------------------------------
#  Step 1: Get the SOAP XML template to be signed.
#  
sbXml = Chilkat::CkStringBuilder.new()

http = Chilkat::CkHttp.new()
success = http.QuickGetSb("https://www.chilkatsoft.com/exampleData/wssSoapTemplate.xml",sbXml)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

#  The SOAP XML template contains this:

#  <?xml version="1.0" encoding="UTF8"?>
#  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
#  <SOAP-ENV:Header>
#   <wsse:Security xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
#                  xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
#                  xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
#                  xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" SOAP-ENV:mustUnderstand="1">
#   <wsse:BinarySecurityToken
#                 EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary"
#                 ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509"
#                 wsu:Id="x509cert00">BASE64_CERT</wsse:BinarySecurityToken>
#   </wsse:Security>
#  </SOAP-ENV:Header>
#  <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="TheBody">
#   <getVersion xmlns="http://msgsec.wssecfvt.ws.ibm.com"/>
#  </SOAP-ENV:Body>
#  </SOAP-ENV:Envelope>
#  

#  -------------------------------------------------------------------------
#  Step 2: Get the test certificate and private key stored in a .pfx
#  
pfxData = Chilkat::CkBinData.new()
success = http.QuickGetBd("http://chilkatdownload.com/example_data/testcertificate.pfx",pfxData)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

pfx = Chilkat::CkPfx.new()
password = "test"
success = pfx.LoadPfxEncoded(pfxData.getEncoded("base64"),"base64",password)
if (success == false)
    print pfx.lastErrorText() + "\n";
    exit
end

#  -------------------------------------------------------------------------
#  Step 3: Get the certificate from the PFX.
#  
cert = Chilkat::CkCert.new()
success = pfx.CertAt(0,cert)
if (success == false)
    print pfx.lastErrorText() + "\n";
    exit
end

#  -------------------------------------------------------------------------
#  Step 4: Replace "BASE64_CERT" with the actual base64 encoded certificate.
#  
bdCert = Chilkat::CkBinData.new()
cert.ExportCertDerBd(bdCert)

numReplaced = sbXml.Replace("BASE64_CERT",bdCert.getEncoded("base64"))

#  -------------------------------------------------------------------------
#  Step 5: Build the wsse:SecurityTokenReference XML.
#  This will be the CustomKeyInfoXml (see below).
#  
refXml = Chilkat::CkXml.new()
refXml.put_Tag("wsse:SecurityTokenReference")
refXml.UpdateAttrAt("wsse:Reference",true,"URI","#x509cert00")
refXml.UpdateAttrAt("wsse:Reference",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509")

#  The above lines of code builds the following XML:

#  	<wsse:SecurityTokenReference>
#  	    <wsse:Reference URI="#x509cert00" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509" />
#  	</wsse:SecurityTokenReference>
#  
refXml.put_EmitXmlDecl(false)
print refXml.getXml() + "\n";

#  -------------------------------------------------------------------------
#  Step 6: Setup the XML Digital Signature Generator and add the XML Signature.
#  
gen = Chilkat::CkXmlDSigGen.new()
gen.put_SigLocation("SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security")
gen.put_SignedInfoPrefixList("wsse SOAP-ENV")
gen.AddSameDocRef("TheBody","sha1","EXCL_C14N","","")
gen.put_KeyInfoType("Custom")
refXml.put_EmitCompact(true)

gen.put_CustomKeyInfoXml(refXml.getXml())
gen.SetX509Cert(cert,true)

success = gen.CreateXmlDSigSb(sbXml)
if (success == false)
    print gen.lastErrorText() + "\n";
    exit
end

#  Examine the signed XML
print sbXml.getAsString() + "\n";

#  Pretty-printed, the XML signature looks as shown here: 
#  (The exact XML signature is shown below. Pretty-printing invalidates the XML signature.)

#  <?xml version="1.0" encoding="UTF8" ?>
#  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
#      <SOAP-ENV:Header>
#          <wsse:Security xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" SOAP-ENV:mustUnderstand="1">
#              <wsse:BinarySecurityToken EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509" wsu:Id="x509cert00">MIID...</wsse:BinarySecurityToken>
#              <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
#                  <ds:SignedInfo>
#                      <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
#                          <InclusiveNamespaces xmlns="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="wsse SOAP-ENV" />
#                      </ds:CanonicalizationMethod>
#                      <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" />
#                      <ds:Reference URI="#TheBody">
#                          <ds:Transforms>
#                              <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" />
#                          </ds:Transforms>
#                          <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
#                          <ds:DigestValue>VhsSnaEAFsY0OYegKQh99v9csXg=</ds:DigestValue>
#                      </ds:Reference>
#                  </ds:SignedInfo>
#                  <ds:SignatureValue>Ynp3H4rtzpXIh4TaVxkpEkS1bMCCu672aeCzUOzheNNfnpmLsCZz3+zQjMBbchPggCayC5ihpEdhRe3XvPXjPXXAgxDP4mic091QPmjHlmUcu8yqRKfxnPtD35nqaxDtCYw+jGIzj+ch094vA4RPCfY8JQnb1mpy1ZjjsMW8741CIh1epbsd/0bZt6tfINUQ37seg07yvLbCJZ/Zf+h8FlFryQk6lHTTeZl/GfQ9NlDBcShby3x8Hc1KwW++zFqEA7G783R9AYPYn3fWTOBhYk5gkgFc+HaPRLR/L0Bp7ZPbmOR/iZQ+HK4W672tTdN/R2GdN7/deV7QTp2DYK1Z8w==</ds:SignatureValue>
#                  <ds:KeyInfo>
#                      <wsse:SecurityTokenReference>
#                          <wsse:Reference URI="#x509cert00" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509" />
#                      </wsse:SecurityTokenReference>
#                  </ds:KeyInfo>
#              </ds:Signature>
#          </wsse:Security>
#      </SOAP-ENV:Header>
#      <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="TheBody">
#          <getVersion xmlns="http://msgsec.wssecfvt.ws.ibm.com" />
#      </SOAP-ENV:Body>
#  </SOAP-ENV:Envelope>
#  

#  --------------------------------------------------------------------------------------------
#  This is the XML signature, which is also available at https://www.chilkatsoft.com/exampleData/signedSoapBinarySecurityToken.xml
#  

#  <?xml version="1.0" encoding="UTF8"?>
#  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
#  <SOAP-ENV:Header>
#   <wsse:Security xmlns:ds="http://www.w3.org/2000/09/xmldsig#"
#                  xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
#                  xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
#                  xmlns:xenc="http://www.w3.org/2001/04/xmlenc#" SOAP-ENV:mustUnderstand="1">
#   <wsse:BinarySecurityToken
#                 EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary"
#                 ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509"
#                 wsu:Id="x509cert00">MIIDg...</wsse:BinarySecurityToken>
#   <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><InclusiveNamespaces xmlns="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="wsse SOAP-ENV"/></ds:CanonicalizationMethod><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#TheBody"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/><ds:DigestValue>VhsSnaEAFsY0OYegKQh99v9csXg=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>Ynp3H4rtzpXIh4TaVxkpEkS1bMCCu672aeCzUOzheNNfnpmLsCZz3+zQjMBbchPggCayC5ihpEdhRe3XvPXjPXXAgxDP4mic091QPmjHlmUcu8yqRKfxnPtD35nqaxDtCYw+jGIzj+ch094vA4RPCfY8JQnb1mpy1ZjjsMW8741CIh1epbsd/0bZt6tfINUQ37seg07yvLbCJZ/Zf+h8FlFryQk6lHTTeZl/GfQ9NlDBcShby3x8Hc1KwW++zFqEA7G783R9AYPYn3fWTOBhYk5gkgFc+HaPRLR/L0Bp7ZPbmOR/iZQ+HK4W672tTdN/R2GdN7/deV7QTp2DYK1Z8w==</ds:SignatureValue><ds:KeyInfo><wsse:SecurityTokenReference><wsse:Reference URI="#x509cert00" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509" /></wsse:SecurityTokenReference></ds:KeyInfo></ds:Signature></wsse:Security>
#  </SOAP-ENV:Header>
#  <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="TheBody">
#   <getVersion xmlns="http://msgsec.wssecfvt.ws.ibm.com"/>
#  </SOAP-ENV:Body>
#  </SOAP-ENV:Envelope>
#