Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(PHP ActiveX) Aadhaar Paperless Offline e-kycOpens an encrypted .zip containing Aadhaar Paperless Offline e-KYC XML. Gets the XML and validates the digital signature. Then computes the hash for the mobile number and Email ID. For more information, see https://uidai.gov.in/ecosystem/authentication-devices-documents/about-aadhaar-paperless-offline-e-kyc.html
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Open the .zip containing the Aadhaar Paperless Offline e-KYC XML. // The .zip is encrypted using the "Share Phrase". // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Zip') $zip = new COM("Chilkat.Zip"); $success = $zip->OpenZip('qa_data/xml_dsig/offline_paperless_kyc.zip'); if ($success == 0) { print $zip->LastErrorText . "\n"; exit; } // The .zip should contain 1 XML file. // entry is a Chilkat.ZipEntry $entry = $zip->GetEntryByIndex(0); if ($zip->LastMethodSuccess == 0) { print $zip->LastErrorText . "\n"; exit; } // To get the contents, we need to specify the Share Phrase. $sharePhrase = 'Lock@487'; $zip->DecryptPassword = $sharePhrase; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bdXml = new COM("Chilkat.BinData"); // The XML file will be unzipped into the bdXml object. $success = $entry->UnzipToBd($bdXml); if ($success == 0) { print $entry->LastErrorText . "\n"; exit; } // First verify the XML digital signature. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.XmlDSig') $dsig = new COM("Chilkat.XmlDSig"); $success = $dsig->LoadSignatureBd($bdXml); if ($success != 1) { print $dsig->LastErrorText . "\n"; exit; } // The UIDAI XML signature does not contain the KeyInfo, so we must load the uidai certificate // and indicate that its public key is to be used for verifying the signature. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert') $cert = new COM("Chilkat.Cert"); $success = $cert->LoadFromFile('qa_data/xml_dsig/uidai_auth_sign_prod_2023.cer'); if ($success != 1) { print $cert->LastErrorText . "\n"; exit; } // Get the certificate's public key. // pubKey is a Chilkat.PublicKey $pubKey = $cert->ExportPublicKey(); $success = $dsig->SetPublicKey($pubKey); // The XML in this example contains only 1 signature. $bVerifyReferenceDigests = 1; $bVerified = $dsig->VerifySignature($bVerifyReferenceDigests); if ($bVerified == 0) { print $dsig->LastErrorText . "\n"; print 'The signature was not valid.' . "\n"; exit; } print 'The XML digital signature is valid.' . "\n"; // Let's compute the hash for the Mobile Number. // Hashing logic for Mobile Number : // Sha256(Sha256(Mobile+SharePhrase))*number of times last digit of Aadhaar number // (Ref ID field contains last 4 digits). // // Example : // Mobile: 1234567890 // Aadhaar Number:XXXX XXXX 3632 // Passcode : Lock@487 // Hash: Sha256(Sha256(1234567890Lock@487))*2 // In case of Aadhaar number ends with Zero we will hashed one time. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2') $crypt = new COM("Chilkat.Crypt2"); $crypt->HashAlgorithm = 'sha256'; $crypt->EncodingMode = 'hexlower'; $strToHash = '1234567890Lock@487'; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bdHash = new COM("Chilkat.BinData"); $success = $bdHash->AppendString($strToHash,'utf-8'); // Hash a number of times equal to the last digit of your Aadhaar number. // If the Aadhaar number ends with 0, then hash one time. // For this example, we'll just set the number of times to hash // for the case where an Aadhaar number ends in "9" $numTimesToHash = 9; for ($i = 1; $i <= $numTimesToHash; $i++) { $tmpStr = $crypt->hashBdENC($bdHash); $bdHash->Clear(); $bdHash->AppendString($tmpStr,'utf-8'); } print 'Computed Mobile hash = ' . $bdHash->getString('utf-8') . "\n"; // Let's get the mobile hash stored in the XML and compare it with our computed hash. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml') $xml = new COM("Chilkat.Xml"); $success = $xml->LoadBd($bdXml,1); $m_hash = $xml->chilkatPath('UidData|Poi|(m)'); print 'Stored Mobile hash = ' . $m_hash . "\n"; // Now do the same thing for the email hash: $strToHash = 'abc@gm.comLock@487'; $bdHash->Clear(); $success = $bdHash->AppendString($strToHash,'utf-8'); for ($i = 1; $i <= $numTimesToHash; $i++) { $tmpStr = $crypt->hashBdENC($bdHash); $bdHash->Clear(); $bdHash->AppendString($tmpStr,'utf-8'); } print 'Computed Email hash = ' . $bdHash->getString('utf-8') . "\n"; $e_hash = $xml->chilkatPath('UidData|Poi|(e)'); print 'Stored Email hash = ' . $e_hash . "\n"; ?> |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.