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(PHP Extension) Validate CAdES-T Signature (.p7m)Validates a CAdES-T CMS signature and extracts the time-stamp token and gets information about it. Also validates the time-stamp token. Note: This example requires Chilkat v9.5.0.78 or greater.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $crypt = new CkCrypt2(); // Indicate that the CAdES-T timestamp tokens must also pass validation for the signature to be validated. $cmsOptions = new CkJsonObject(); $cmsOptions->UpdateBool('ValidateTimestampTokens',true); $crypt->put_CmsOptions($cmsOptions->emit()); // Validate the .p7m and extract the original signed data to an output file. // Note: The timestampToken is an unauthenticated attribute. See the code below that parses the LastJsonData // for details about examining timestampToken. $success = $crypt->VerifyP7M('qa_data/cades/CAdES-T/Signature-C-T-1.p7m','qa_output/out.dat'); // Get information about the CMS signature in the LastJsonData. // The detailed results of the signature validation are available in LastJsonData. // (If the non-success return status was caused by an error such as "file not found", then the // LastJsonData would be empty.) // json is a CkJsonObject $json = $crypt->LastJsonData(); $json->put_EmitCompact(false); print $json->emit() . "\n"; // Here is a sample result: // See the parsing code below.. // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON // { // "pkcs7": { // "verify": { // "digestAlgorithms": [ // "sha256" // ], // "signerInfo": [ // { // "cert": { // "serialNumber": "00DCB814678CDB", // "issuerCN": "LevelBCAOK", // "issuerDN": "", // "digestAlgOid": "2.16.840.1.101.3.4.2.1", // "digestAlgName": "SHA256" // }, // "contentType": "1.2.840.113549.1.7.1", // "signingTime": "131203065741Z", // "messageDigest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os=", // "signingAlgOid": "1.2.840.113549.1.1.1", // "signingAlgName": "RSA-PKCSV-1_5", // "authAttr": { // "1.2.840.113549.1.9.3": { // "name": "contentType", // "oid": "1.2.840.113549.1.7.1" // }, // "1.2.840.113549.1.9.5": { // "name": "signingTime", // "utctime": "131203065741Z" // }, // "1.2.840.113549.1.9.4": { // "name": "messageDigest", // "digest": "JJZt41Nt8VsYahP+Xti4rR3vBDkUfRd6gquItl6R5Os=" // }, // "1.2.840.113549.1.9.16.2.47": { // "name": "signingCertificateV2", // "der": "MIGIMIGFMIGCBCBJrxOU0w0dWGsVovjLv9QDH3syB5mLVv3grSYA40x9IDBeMFOkUTBPMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDETMBEGA1UEAxMKTGV2ZWxCQ0FPSwIHANy4FGeM2w==" // } // }, // "unauthAttr": { // "1.2.840.113549.1.9.16.2.14": { // "name": "timestampToken", // "der": "MIIL+AYJKoZI...u7CfcjURNTY=", // "verify": { // "digestAlgorithms": [ // "sha256" // ], // "signerInfo": [ // { // "cert": { // "serialNumber": "01AA4592D36C61", // "issuerCN": "RootCAOK", // "issuerDN": "", // "digestAlgOid": "2.16.840.1.101.3.4.2.1", // "digestAlgName": "SHA256" // }, // "contentType": "1.2.840.113549.1.9.16.1.4", // "messageDigest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q=", // "signingAlgOid": "1.2.840.113549.1.1.1", // "signingAlgName": "RSA-PKCSV-1_5", // "authAttr": { // "1.2.840.113549.1.9.3": { // "name": "contentType", // "oid": "1.2.840.113549.1.9.16.1.4" // }, // "1.2.840.113549.1.9.4": { // "name": "messageDigest", // "digest": "NSsMUrfoyCQ0OszPE1YLx1j3EyyCiBmnE5Sua6ghu/Q=" // }, // "1.2.840.113549.1.9.16.2.47": { // "name": "signingCertificateV2", // "der": "MIGGMIGDMIGABCDB/np5UxvhcPnSxD2Kme+C88uXGCMWLAvFPHNvTApTWDBcMFGkTzBNMQswCQYDVQQGEwJGUjENMAsGA1UEChMERVRTSTEcMBoGA1UECwwTUGx1Z3Rlc3RzXzIwMTMtMjAxNDERMA8GA1UEAxMIUm9vdENBT0sCBwGqRZLTbGE=" // } // } // } // ] // }, // "timestampSignatureVerified": true, // "tstInfo": { // "tsaPolicyId": "1.3.6.1.4.1.2706.2.2.5.2.1.1.1", // "messageImprint": { // "hashAlg": "sha256", // "digest": "C8xEe9NA4X1cUyHGX9zG89ipmQ2byFs3aa+Xe4Fz2P0=", // "digestMatches": true // }, // "serialNumber": "313E162121D922", // "genTime": "20131203065742Z" // } // } // } // } // ] // } // } // } // $signingTime = new CkDtObj(); $authAttrSigningTimeUtctime = new CkDtObj(); $unauthAttrTimestampTokenTstInfoGenTime = new CkDtObj(); // Iterate over the hash algorithms used in the signature. $i = 0; $count_i = $json->SizeOfArray('pkcs7.verify.digestAlgorithms'); while ($i < $count_i) { $json->put_I($i); $strVal = $json->stringOf('pkcs7.verify.digestAlgorithms[i]'); $i = $i + 1; } // For each signer... $i = 0; $count_i = $json->SizeOfArray('pkcs7.verify.signerInfo'); while ($i < $count_i) { $json->put_I($i); // Get information about the certificate used by this signer. $certSerialNumber = $json->stringOf('pkcs7.verify.signerInfo[i].cert.serialNumber'); $certIssuerCN = $json->stringOf('pkcs7.verify.signerInfo[i].cert.issuerCN'); $certIssuerDN = $json->stringOf('pkcs7.verify.signerInfo[i].cert.issuerDN'); $certDigestAlgOid = $json->stringOf('pkcs7.verify.signerInfo[i].cert.digestAlgOid'); $certDigestAlgName = $json->stringOf('pkcs7.verify.signerInfo[i].cert.digestAlgName'); // Get additional information for this signer, such as the signingTime, signature algorithm, etc. $contentType = $json->stringOf('pkcs7.verify.signerInfo[i].contentType'); $json->DtOf('pkcs7.verify.signerInfo[i].signingTime',false,$signingTime); $messageDigest = $json->stringOf('pkcs7.verify.signerInfo[i].messageDigest'); $signingAlgOid = $json->stringOf('pkcs7.verify.signerInfo[i].signingAlgOid'); $signingAlgName = $json->stringOf('pkcs7.verify.signerInfo[i].signingAlgName'); // -------------------------------- // Examine authenticated attributes. // -------------------------------- // contentType if ($json->HasMember('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.3\'') == true) { $authAttrContentTypeName = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.3\'.name'); $authAttrContentTypeOid = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.3\'.oid'); } // signingTime if ($json->HasMember('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.5\'') == true) { $authAttrSigningTimeName = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.5\'.name'); $json->DtOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.5\'.utctime',false,$authAttrSigningTimeUtctime); } // messageDigest if ($json->HasMember('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.4\'') == true) { $authAttrMessageDigestName = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.4\'.name'); $authAttrMessageDigestDigest = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.4\'.digest'); } // signingCertificateV2 if ($json->HasMember('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.16.2.47\'') == true) { $authAttrSigningCertificateV2Name = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.16.2.47\'.name'); $authAttrSigningCertificateV2Der = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.16.2.47\'.der'); } // -------------------------------- // Examine unauthenticated attributes. // -------------------------------- // timestampToken (the timestampToken is what makes this signature a CAdES-T) if ($json->HasMember('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'') == true) { $unauthAttrTimestampTokenName = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.name'); $unauthAttrTimestampTokenDer = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.der'); // This is where we find out if the timestampToken's signature is valid. $unauthAttrTimestampTokenTimestampSignatureVerified = $json->BoolOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.timestampSignatureVerified'); $unauthAttrTimestampTokenTstInfoTsaPolicyId = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.tsaPolicyId'); $unauthAttrTimestampTokenTstInfoMessageImprintHashAlg = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.messageImprint.hashAlg'); $unauthAttrTimestampTokenTstInfoMessageImprintDigest = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.messageImprint.digest'); // Here is where we check to see if the digest in the timestampToken's messageImprint matches the digest of the signature of this signerInfo $unauthAttrTimestampTokenTstInfoMessageImprintDigestMatches = $json->BoolOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.messageImprint.digestMatches'); $unauthAttrTimestampTokenTstInfoSerialNumber = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.serialNumber'); // Here is where we get the date/time of the timestampToken (i.e. when it was timestamped) $json->DtOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.tstInfo.genTime',false,$unauthAttrTimestampTokenTstInfoGenTime); // The following code gets details about the validity of the timestampToken's signature... $j = 0; $count_j = $json->SizeOfArray('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.digestAlgorithms'); while ($j < $count_j) { $json->put_J($j); $strVal = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.digestAlgorithms[j]'); $j = $j + 1; } $j = 0; $count_j = $json->SizeOfArray('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo'); while ($j < $count_j) { $json->put_J($j); $certSerialNumber = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].cert.serialNumber'); $certIssuerCN = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].cert.issuerCN'); $certIssuerDN = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].cert.issuerDN'); $certDigestAlgOid = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].cert.digestAlgOid'); $certDigestAlgName = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].cert.digestAlgName'); $contentType = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].contentType'); $messageDigest = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].messageDigest'); $signingAlgOid = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].signingAlgOid'); $signingAlgName = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].signingAlgName'); $authAttrContentTypeName = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.3\'.name'); $authAttrContentTypeOid = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.3\'.oid'); $authAttrMessageDigestName = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.4\'.name'); $authAttrMessageDigestDigest = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.4\'.digest'); $authAttrSigningCertificateV2Name = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.16.2.47\'.name'); $authAttrSigningCertificateV2Der = $json->stringOf('pkcs7.verify.signerInfo[i].unauthAttr.\'1.2.840.113549.1.9.16.2.14\'.verify.signerInfo[j].authAttr.\'1.2.840.113549.1.9.16.2.47\'.der'); $j = $j + 1; } } $i = $i + 1; } if ($success != true) { print $crypt->lastErrorText() . "\n"; print 'CAdES-T verification failed.' . "\n"; } else { print 'CAdES-T signature is valid.' . "\n"; } ?> |
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