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(PHP ActiveX) SII Chile - FRMA Signature Computation and Add to XMLCompute the FRMA signature of a <DA> element enclosed inside a <CAF> element of the XML to be signed.
<?php // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Also see: Compute the FRMT Signature and Add to XML // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); // Load the unsigned XML that contains the following: // <DTE version="1.0"> // <Documento ID="F60T33"> // <TED version="1.0"> // <DD> // ... // <CAF version="1.0"> // <DA> // ... // </DA> // ... The FRMA will be added here ... // </CAF> // ... // </DD> // ... The FRMT will be added here in another example ... // </TED> // </Documento> // </DTE> $success = $xml->LoadXmlFile('qa_data/xml_dsig/sii_cl/test_0.xml'); if ($success == 0) { print 'Failed to load initial XML file.' . "\n"; exit; } // Get a reference to the "DA" element // daXml is a Chilkat.Xml $daXml = $xml->FindChild('Documento|TED|DD|CAF|DA'); if ($xml->LastMethodSuccess == 0) { print 'Failed to find DA element' . "\n"; exit; } // We need to get the "flattened" DA XML where: // - No whitespace between elements. // - The 5 pre-defined entities are converted. // - The text is encoded in the ISO-8859-1 character set (Latin-1), // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbFlattened = new COM("Chilkat.StringBuilder"); $daXml->EmitCompact = 1; $daXml->EmitXmlDecl = 0; $daXml->GetXmlSb($sbFlattened); // Compute the SHA-1 message digest of the iso-8859-1 byte representation, // and sign it with our RSA private key, getting the result in base64 format. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.PrivateKey') $privKey = new COM("Chilkat.PrivateKey"); $success = $privKey->LoadAnyFormatFile('qa_data/rsa/rsaPrivKey_pkcs8.pem',''); if ($success == 0) { print $privKey->LastErrorText . "\n"; exit; } // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Rsa') $rsa = new COM("Chilkat.Rsa"); $rsa->ImportPrivateKeyObj($privKey); $rsa->EncodingMode = 'base64'; $rsa->Charset = 'iso-8859-1'; $sig = $rsa->signStringENC($sbFlattened->getAsString(),'sha1'); // Add the FRMA signature element to the XML. $xml->UpdateChildContent('Documento|TED|DD|CAF|FRMA',$sig); $xml->UpdateAttrAt('Documento|TED|DD|CAF|FRMA',1,'algoritmo','SHA1withRSA'); // See what we have: $xml->EmitCompact = 0; $xml->EmitXmlDecl = 1; print $xml->getXml() . "\n"; $xml->SaveXml('qa_data/xml_dsig/sii_cl/test_1.xml'); ?> |
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