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(Go) Create XML Signature with KeyInfo / X509Data / X509IssuerSerialThis example demonstrates how to create an XML Digital Signature where the KeyInfo element contains an X509Data element,
// 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. // sbXml := chilkat.NewStringBuilder() http := chilkat.NewHttp() success := http.QuickGetSb("https://www.chilkatsoft.com/exampleData/soapToSign.xml",sbXml) if success != true { fmt.Println(http.LastErrorText()) sbXml.DisposeStringBuilder() http.DisposeHttp() return } // 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 // pfxData := chilkat.NewBinData() success = http.QuickGetBd("https://chilkatdownload.com/example_data/testcertificate.pfx",pfxData) if success != true { fmt.Println(http.LastErrorText()) sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() return } pfx := chilkat.NewPfx() password := "test" success = pfx.LoadPfxEncoded(*pfxData.GetEncoded("base64"),"base64",password) if success != true { fmt.Println(pfx.LastErrorText()) sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() pfx.DisposePfx() return } // ------------------------------------------------------------------------- // Step 3: Get the certificate from the PFX. // cert := pfx.GetCert(0) if pfx.LastMethodSuccess() != true { fmt.Println(pfx.LastErrorText()) sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() pfx.DisposePfx() return } // Prepare for signing... gen := chilkat.NewXmlDSigGen() // Indicate where the Signature will be inserted. gen.SetSigLocation("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" gen.AddSameDocRef("Body","sha1","EXCL_C14N","","") // (You can read about the SignedInfoPrefixList in the online reference documentation. It's optional..) gen.SetSignedInfoPrefixList("wsse SOAP-ENV") // Provide the private key for signing via the certificate, and indicate that // we want only the Issuer's DN and serial number of the certificate embedded in the KeyInfo. gen.SetKeyInfoType("X509Data") gen.SetX509Type("IssuerSerial") // 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. bUsePrivateKey := true success = gen.SetX509Cert(cert,bUsePrivateKey) if success != true { fmt.Println(gen.LastErrorText()) cert.DisposeCert() sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() pfx.DisposePfx() gen.DisposeXmlDSigGen() return } cert.DisposeCert() // Everything's specified. Now create and insert the Signature success = gen.CreateXmlDSigSb(sbXml) if success != true { fmt.Println(gen.LastErrorText()) sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() pfx.DisposePfx() gen.DisposeXmlDSigGen() return } // Examine the XML with the digital signature inserted fmt.Println(*sbXml.GetAsString()) // 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:X509IssuerSerial><ds:X509IssuerName>CN=Test Company, C=AU, ST=Some-State, O=Internet Widgits Pty Ltd</ds:X509IssuerName><ds:X509SerialNumber>00</ds:X509SerialNumber></ds:X509IssuerSerial></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:X509IssuerSerial> // <ds:X509IssuerName>CN=Test Company, C=AU, ST=Some-State, O=Internet Widgits Pty Ltd</ds:X509IssuerName> // <ds:X509SerialNumber>00</ds:X509SerialNumber> // </ds:X509IssuerSerial> // </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> // sbXml.DisposeStringBuilder() http.DisposeHttp() pfxData.DisposeBinData() pfx.DisposePfx() gen.DisposeXmlDSigGen() |
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