Xbase++ Requires Chilkat v11.0.0+

Create XML Signature using Java KeyStore (.jks)

See more XML Digital Signatures Examples

Demonstrates how to create an XML digital signature using a certificate and private key from a Java KeyStore (.jks) Xbase++

LOCAL nSuccess
LOCAL oXml
LOCAL oJks
LOCAL cPassword
LOCAL oChain
LOCAL oCert
LOCAL oGen
LOCAL nBUsePrivateKey
LOCAL oSbXml

nSuccess := 0

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

//  The SOAP XML to be signed in this example contains the following:

//  <?xml version="1.0" encoding="UTF-8" standalone="no" ?>
//  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
//      <SOAP-ENV:Header>
//          <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" SOAP-ENV:mustUnderstand="1"></wsse:Security>
//      </SOAP-ENV:Header>
//      <SOAP-ENV:Body xmlns:SOAP-SEC="http://schemas.xmlsoap.org/soap/security/2000-12" SOAP-SEC:id="Body">
//          <z:FooBar xmlns:z="http://example.com" />
//      </SOAP-ENV:Body>
//  </SOAP-ENV:Envelope>
//  

//  Build the XML to sign.
//  Use this online tool to generate the code from sample XML: 
//  Generate Code to Create XML

oXml := CreateObject("Chilkat.Xml")
oXml:Tag := "SOAP-ENV:Envelope"
oXml:AddAttribute("xmlns:SOAP-ENV", "http://schemas.xmlsoap.org/soap/envelope/")
oXml:UpdateAttrAt("SOAP-ENV:Header|wsse:Security", 1, "xmlns:wsse", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd")
oXml:UpdateAttrAt("SOAP-ENV:Header|wsse:Security", 1, "SOAP-ENV:mustUnderstand", "1")
oXml:UpdateAttrAt("SOAP-ENV:Body", 1, "xmlns:SOAP-SEC", "http://schemas.xmlsoap.org/soap/security/2000-12")
oXml:UpdateAttrAt("SOAP-ENV:Body", 1, "SOAP-SEC:id", "Body")
oXml:UpdateAttrAt("SOAP-ENV:Body|z:FooBar", 1, "xmlns:z", "http://example.com")

//  Load a JavaKeyStore file containing the certificate + private key.
oJks := CreateObject("Chilkat.JavaKeyStore")
cPassword := "secret"
nSuccess := oJks:LoadFile(cPassword, "qa_data/jks/test_secret.jks")
IF (nSuccess == 0)
    ? oJks:LastErrorText
    oXml:destroy()
    oJks:destroy()
    RETURN
ENDIF

//  Make sure we have a private key.
IF (oJks:NumPrivateKeys < 1)
    ? "No private key available."
    oXml:destroy()
    oJks:destroy()
    RETURN
ENDIF

//  -------------------------------------------------------------------------
//  Get the certificate chain associated with the 1st (and probably only) private key in the JKS.

oChain := CreateObject("Chilkat.CertChain")
nSuccess := oJks:CertChainAt(0, oChain)
IF (nSuccess == 0)
    ? oJks:LastErrorText
    oXml:destroy()
    oJks:destroy()
    oChain:destroy()
    RETURN
ENDIF

oCert := CreateObject("Chilkat.Cert")
nSuccess := oChain:CertAt(0, oCert)
IF (nSuccess == 0)
    ? oChain:LastErrorText
    oXml:destroy()
    oJks:destroy()
    oChain:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Verify again that this cert has a private key.
IF (oCert:HasPrivateKey() != 1)
    ? "Certificate has no associated private key."
    oXml:destroy()
    oJks:destroy()
    oChain:destroy()
    oCert:destroy()
    RETURN
ENDIF

//  Prepare for signing...
//  Use this online tool to generate the following code from an already-signed XML sample: 
//  Generate Code to Create an XML Signature
oGen := CreateObject("Chilkat.XmlDSigGen")

//  Indicate where the Signature will be inserted.
oGen:SigLocation := "SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security"

//  Add a reference to the fragment of the XML to be signed.
oGen:AddSameDocRef("Body", "sha1", "EXCL_C14N", "", "")

//  (You can read about the SignedInfoPrefixList in the online reference documentation.  It's optional..)
oGen:SignedInfoPrefixList := "wsse SOAP-ENV"

//  Provide the private key for signing via the certificate, and indicate that
//  we want the base64 of the certificate embedded in the KeyInfo.
oGen:KeyInfoType := "X509Data"
oGen:X509Type := "Certificate"

//  Note: Because our certificate was loaded from a JKS which also contained the private key,
//  Chilkat automatically knows and has the private key associated with the certificate.
//  We set bUsePrivateKey to tell the SetX509Cert method to automatically use the private key
//  associated with the certificate for signing.
nBUsePrivateKey := 1
nSuccess := oGen:SetX509Cert(oCert, nBUsePrivateKey)
IF (nSuccess != 1)
    ? oGen:LastErrorText
    oXml:destroy()
    oJks:destroy()
    oChain:destroy()
    oCert:destroy()
    oGen:destroy()
    RETURN
ENDIF

//  Everything's specified.  Now create and insert the Signature
oSbXml := CreateObject("Chilkat.StringBuilder")
oXml:GetXmlSb(oSbXml)
nSuccess := oGen:CreateXmlDSigSb(oSbXml)
IF (nSuccess == 0)
    ? oGen:LastErrorText
    oXml:destroy()
    oJks:destroy()
    oChain:destroy()
    oCert:destroy()
    oGen:destroy()
    oSbXml:destroy()
    RETURN
ENDIF

//  Examine the XML with the digital signature inserted
? oSbXml:GetAsString()

oXml:destroy()
oJks:destroy()
oChain:destroy()
oCert:destroy()
oGen:destroy()
oSbXml:destroy()