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(DataFlex) Create XML Signature with KeyInfo / X509Data / X509SKIThis example demonstrates how to create an XML Digital Signature where the KeyInfo element contains an X509Data element,
Use ChilkatAx-win32.pkg Procedure Test Variant vSbXml Handle hoSbXml Handle hoHttp Boolean iSuccess Variant vPfxData Handle hoPfxData Handle hoPfx String sPassword Variant vCert Handle hoCert Handle hoGen Boolean iBUsePrivateKey String sTemp1 Boolean bTemp1 // 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 to be signed. // Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml If (Not(IsComObjectCreated(hoSbXml))) Begin Send CreateComObject of hoSbXml End Get Create (RefClass(cComChilkatHttp)) To hoHttp If (Not(IsComObjectCreated(hoHttp))) Begin Send CreateComObject of hoHttp End Get pvComObject of hoSbXml to vSbXml Get ComQuickGetSb Of hoHttp "https://www.chilkatsoft.com/exampleData/soapToSign.xml" vSbXml To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoHttp To sTemp1 Showln sTemp1 Procedure_Return End // The SOAP XML contains this: // <?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> // ------------------------------------------------------------------------- // Step 2: Get the test certificate and private key stored in a .pfx // Get Create (RefClass(cComChilkatBinData)) To hoPfxData If (Not(IsComObjectCreated(hoPfxData))) Begin Send CreateComObject of hoPfxData End Get pvComObject of hoPfxData to vPfxData Get ComQuickGetBd Of hoHttp "https://chilkatdownload.com/example_data/testcertificate.pfx" vPfxData To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoHttp To sTemp1 Showln sTemp1 Procedure_Return End Get Create (RefClass(cComChilkatPfx)) To hoPfx If (Not(IsComObjectCreated(hoPfx))) Begin Send CreateComObject of hoPfx End Move "test" To sPassword Get ComGetEncoded Of hoPfxData "base64" To sTemp1 Get ComLoadPfxEncoded Of hoPfx sTemp1 "base64" sPassword To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoPfx To sTemp1 Showln sTemp1 Procedure_Return End // ------------------------------------------------------------------------- // Step 3: Get the certificate from the PFX. // Get ComGetCert Of hoPfx 0 To vCert If (IsComObject(vCert)) Begin Get Create (RefClass(cComChilkatCert)) To hoCert Set pvComObject Of hoCert To vCert End Get ComLastMethodSuccess Of hoPfx To bTemp1 If (bTemp1 <> True) Begin Get ComLastErrorText Of hoPfx To sTemp1 Showln sTemp1 Procedure_Return End // Prepare for signing... Get Create (RefClass(cComChilkatXmlDSigGen)) To hoGen If (Not(IsComObjectCreated(hoGen))) Begin Send CreateComObject of hoGen End // Indicate where the Signature will be inserted. Set ComSigLocation Of hoGen To "SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security" // Add a reference to the fragment of the XML to be signed. // Note: "Body" refers to the XML element having an "id" equal to "Body", where "id" is case insensitive // and where any namespace might qualify the attribute. In this case, the SOAP-ENV:Body fragment is signed // NOT because the tag = "Body", but because it has SOAP-SEC:id="Body" Get ComAddSameDocRef Of hoGen "Body" "sha1" "EXCL_C14N" "" "" To iSuccess // (You can read about the SignedInfoPrefixList in the online reference documentation. It's optional..) Set ComSignedInfoPrefixList Of hoGen To "wsse SOAP-ENV" // Provide the private key for signing via the certificate, and indicate that // we want only the Subject Key Identifier (SKI) of the certificate embedded in the KeyInfo. Set ComKeyInfoType Of hoGen To "X509Data" Set ComX509Type Of hoGen To "SKI" // Note: Because our certificate was loaded from a PFX 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. If, for example, we obtained the certificate // by loading from a .cer file, then we would not already have the associated private key. // In that case, the application could explicitly load the cert's private key from some // other source, such as a .key, .pem, etc. and then call gen.SetPrivateKey. Move True To iBUsePrivateKey Get ComSetX509Cert Of hoGen vCert iBUsePrivateKey To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoGen To sTemp1 Showln sTemp1 Send Destroy of hoCert Procedure_Return End Send Destroy of hoCert // Everything's specified. Now create and insert the Signature Get pvComObject of hoSbXml to vSbXml Get ComCreateXmlDSigSb Of hoGen vSbXml To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoGen To sTemp1 Showln sTemp1 Procedure_Return End // Examine the XML with the digital signature inserted Get ComGetAsString Of hoSbXml To sTemp1 Showln sTemp1 // Here is the actual output. A pretty-printed version of the output is shown below, but the addition of whitespace // in the XML invalidates the signature. // <?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"><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="#Body"><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>PIiVPpuMc1jGpWaL8ftzTOcc4gc=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>Rlta8LplnFH0q8L+UeVmh4Smdn6oVETi4RoUmpT/KQX3RNAIOdCVE3b7gjmx5+3vp3DhjphOsZvW6dXzkI46xt9pD5otp3b/ZppGqKzltggo9gyQtPvJ8ltJZqVKYOGo5uElRFF/xm/zcx5Y3E14t+LYVSlv2lbem/zZ5zQ7ai8DmGD33id7nGu+MXVwb3kGkJFYoB/GOXtwsep+bcilMglTp8/7SBfBaVFKxWVBp4N2NW7bGlyDct8FaCk9hXQDNm/kqne9GU87tgh8/rbsFCYgyqIRMIvMPvhRWr2EKdEKyLtlZ8w0KYJYpgsf4T7SDghemzXkJoJPrfUQmHudIw==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509SKI>bDMtm8bAimMlGLU2M/82W8+y3tM=</ds:X509SKI></ds:X509Data></ds:KeyInfo></ds:Signature></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> // ---------------------------------------------------------------- // Pretty-printed output (invalidates the signature) // This makes it easier to see the X509IssuerSerial contained within the KeyInfo. // <?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"> // <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="#Body"> // <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>PIiVPpuMc1jGpWaL8ftzTOcc4gc=</ds:DigestValue> // </ds:Reference> // </ds:SignedInfo> // <ds:SignatureValue>Rlta8LplnFH0q8L+UeVmh4Smdn6oVETi4RoUmpT/KQX3RNAIOdCVE3b7gjmx5+3vp3DhjphOsZvW6dXzkI46xt9pD5otp3b/ZppGqKzltggo9gyQtPvJ8ltJZqVKYOGo5uElRFF/xm/zcx5Y3E14t+LYVSlv2lbem/zZ5zQ7ai8DmGD33id7nGu+MXVwb3kGkJFYoB/GOXtwsep+bcilMglTp8/7SBfBaVFKxWVBp4N2NW7bGlyDct8FaCk9hXQDNm/kqne9GU87tgh8/rbsFCYgyqIRMIvMPvhRWr2EKdEKyLtlZ8w0KYJYpgsf4T7SDghemzXkJoJPrfUQmHudIw==</ds:SignatureValue> // <ds:KeyInfo> // <ds:X509Data> // <ds:X509SKI>bDMtm8bAimMlGLU2M/82W8+y3tM=</ds:X509SKI> // </ds:X509Data> // </ds:KeyInfo> // </ds:Signature> // </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> End_Procedure |
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