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(PHP ActiveX) PKCS11 XML Signature using Certificate and Private Key on Smart Card / USB TokenSee more PKCS11 ExamplesSample code showing how to use PKCS11 to create an XML digital signature with a certificate and private key stored on a smart card or USB token. Note: This example requires Chilkat v9.5.0.96 or later.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pkcs11') $pkcs11 = new COM("Chilkat.Pkcs11"); // This example is tested on Windows using a Giesecke and Devrient Sm@rtCafe Expert 3.2 smart card. // You will use the DLL (or shared lib) provided by your smart card vendor, or a DLL compatible with your smart card. // On Windows, if the DLL is located in C:\Windows\System32, specify only the filename. // Otherwise provide the full path. $pkcs11->SharedLibPath = 'aetpkss1.dll'; // Make it an authenticated session by calling Login. $userType = 1; // Make sure to use the correct PIN for your smart card.. $pin = '0000'; $success = $pkcs11->QuickSession($userType,$pin); if ($success == 0) { print $pkcs11->LastErrorText . "\n"; exit; } // Get the certificate (on the smart card) that has a private key. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert') $cert = new COM("Chilkat.Cert"); $success = $pkcs11->FindCert('privateKey','',$cert); if ($success == 1) { print 'Cert with private key: ' . $cert->SubjectCN . "\n"; } else { print 'No certificates having a private key were found.' . "\n"; $success = $pkcs11->CloseSession(); exit; } // -------------------------------------------------------------------------- // At this point, we have the cert to be used for signing. // Our XML signing code is the same as for a cert obtained from any other source.. // First generate the following XML to be signed: // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <?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> // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); $xml->Tag = 'SOAP-ENV:Envelope'; $xml->AddAttribute('xmlns:SOAP-ENV','http://schemas.xmlsoap.org/soap/envelope/'); $xml->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'); $xml->UpdateAttrAt('SOAP-ENV:Header|wsse:Security',1,'SOAP-ENV:mustUnderstand','1'); $xml->UpdateAttrAt('SOAP-ENV:Body',1,'xmlns:SOAP-SEC','http://schemas.xmlsoap.org/soap/security/2000-12'); $xml->UpdateAttrAt('SOAP-ENV:Body',1,'SOAP-SEC:id','Body'); $xml->UpdateAttrAt('SOAP-ENV:Body|z:FooBar',1,'xmlns:z','http://example.com'); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.XmlDSigGen') $gen = new COM("Chilkat.XmlDSigGen"); // Indicate where the Signature will be inserted. $gen->SigLocation = '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->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. $gen->KeyInfoType = 'X509Data'; $gen->X509Type = 'Certificate'; $bUsePrivateKey = 1; $success = $gen->SetX509Cert($cert,$bUsePrivateKey); if ($success != 1) { print $gen->LastErrorText . "\n"; $success = $pkcs11->CloseSession(); exit; } // Everything's specified. Now create and insert the Signature // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbXml = new COM("Chilkat.StringBuilder"); $xml->EmitCompact = 1; $xml->GetXmlSb($sbXml); $success = $gen->CreateXmlDSigSb($sbXml); if ($success != 1) { print $gen->LastErrorText . "\n"; $success = $pkcs11->CloseSession(); exit; } // Examine the XML with the digital signature inserted print $sbXml->getAsString() . "\n"; // -------------------------------------------------------------------------- // Revert to an unauthenticated session by calling Logout. $success = $pkcs11->Logout(); if ($success == 0) { print $pkcs11->LastErrorText . "\n"; $success = $pkcs11->CloseSession(); exit; } // When finished, close the session. // It is important to close the session (memory leaks will occur if the session is not properly closed). $success = $pkcs11->CloseSession(); if ($success == 0) { print $pkcs11->LastErrorText . "\n"; exit; } print 'Success.' . "\n"; ?> |
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