PHP ActiveX Requires Chilkat v11.0.0+
PHP ActiveX
RFC3161 Timestamp Client - Fetch from Timestamp Authority (TSA) and Verify
See more HTTP Examples
Sends an RFC 3161 timestamp request to a TSA (Timestamp Authority) server and validates the timestamp token response.Chilkat PHP ActiveX Downloads
<?php
$success = 0;
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// First sha-256 hash the data that is to be timestamped.
// In this example, the data is the string "Hello World"
$crypt = new COM("Chilkat.Crypt2");
$crypt->HashAlgorithm = 'sha256';
$crypt->EncodingMode = 'base64';
$base64Hash = $crypt->hashStringENC('Hello World');
$http = new COM("Chilkat.Http");
$requestToken = new COM("Chilkat.BinData");
$optionalPolicyOid = '';
$addNonce = 0;
$requestTsaCert = 1;
// Create a time-stamp request token
$success = $http->CreateTimestampRequest('sha256',$base64Hash,$optionalPolicyOid,$addNonce,$requestTsaCert,$requestToken);
if ($success == 0) {
print $http->LastErrorText . "\n";
exit;
}
// Send the time-stamp request token to the TSA.
// This is the equivalent of the following CURL command:
// curl -H "Content-Type: application/timestamp-query" --data-binary '@file.tsq' https://freetsa.org/tsr > file.tsr
$tsaUrl = 'https://freetsa.org/tsr';
// Another timestamp server you could try is: http://timestamp.digicert.com
$tsaUrl = 'http://timestamp.digicert.com';
$resp = new COM("Chilkat.HttpResponse");
$success = $http->HttpBd('POST',$tsaUrl,$requestToken,'application/timestamp-query',$resp);
if ($success == 0) {
print $http->LastErrorText . "\n";
exit;
}
// Get the timestamp reply from the HTTP response object.
$timestampReply = new COM("Chilkat.BinData");
$resp->GetBodyBd($timestampReply);
// Show the base64 encoded timestamp reply.
print $timestampReply->getEncoded('base64') . "\n";
// Let's verify the timestamp reply against the TSA's cert, which we've previously downloaded.
// See https://freetsa.org/index_en.php
$tsaCert = new COM("Chilkat.Cert");
$success = $tsaCert->LoadFromFile('qa_data/certs/freetsa.org.cer');
if ($success == 0) {
print $tsaCert->LastErrorText . "\n";
exit;
}
// The VerifyTimestampReply method will return one of the following values:
// -1: The timestampReply does not contain a valid timestamp reply.
// -2: The timestampReply is a valid timestamp reply, but failed verification using the public key of the tsaCert.
// 0: Granted and verified.
// 1: Granted and verified, with mods (see RFC 3161)
// 2: Rejected.
// 3: Waiting.
// 4: Revocation Warning
// 5: Revocation Notification
$pkiStatus = $http->VerifyTimestampReply($timestampReply,$tsaCert);
if ($pkiStatus < 0) {
print $http->LastErrorText . "\n";
exit;
}
print 'pkiStatus = ' . $pkiStatus . "\n";
$json = new COM("Chilkat.JsonObject");
$http->GetLastJsonData($json);
$json->EmitCompact = 0;
print $json->emit() . "\n";
// The JSON looks like the following.
// Use this online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON
// {
// "timestampReply": {
// "pkiStatus": {
// "value": 0,
// "meaning": "granted"
// }
// },
// "pkcs7": {
// "verify": {
// "digestAlgorithms": [
// "sha256"
// ],
// "signerInfo": [
// {
// "cert": {
// "serialNumber": "04CD3F8568AE76C61BB0FE7160CCA76D",
// "issuerCN": "DigiCert SHA2 Assured ID Timestamping CA",
// "digestAlgOid": "2.16.840.1.101.3.4.2.1",
// "digestAlgName": "SHA256"
// },
// "contentType": "1.2.840.113549.1.9.16.1.4",
// "signingTime": "200405023019Z",
// "messageDigest": "f14zOsdnN9vyyV3HjjBiLzNDi1PF28hAFMODxNkNRZs=",
// "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"
// },
// "1.2.840.113549.1.9.5": {
// "name": "signingTime",
// "utctime": "200405023019Z"
// },
// "1.2.840.113549.1.9.16.2.12": {
// "name": "signingCertificate",
// "der": "MBowGDAWBBQDJb1QXtqWMC3CL0+gHkwovig0xQ=="
// },
// "1.2.840.113549.1.9.4": {
// "name": "messageDigest",
// "digest": "f14zOsdnN9vyyV3HjjBiLzNDi1PF28hAFMODxNkNRZs="
// }
// }
// }
// ]
// }
// }
// }
$signingTime = new COM("Chilkat.DtObj");
$authAttrSigningTimeUtctime = new COM("Chilkat.DtObj");
$timestampReplyPkiStatusValue = $json->IntOf('timestampReply.pkiStatus.value');
$timestampReplyPkiStatusMeaning = $json->stringOf('timestampReply.pkiStatus.meaning');
$i = 0;
$count_i = $json->SizeOfArray('pkcs7.verify.digestAlgorithms');
while ($i < $count_i) {
$json->I = $i;
$strVal = $json->stringOf('pkcs7.verify.digestAlgorithms[i]');
$i = $i + 1;
}
$i = 0;
$count_i = $json->SizeOfArray('pkcs7.verify.signerInfo');
while ($i < $count_i) {
$json->I = $i;
$certSerialNumber = $json->stringOf('pkcs7.verify.signerInfo[i].cert.serialNumber');
$certIssuerCN = $json->stringOf('pkcs7.verify.signerInfo[i].cert.issuerCN');
$certDigestAlgOid = $json->stringOf('pkcs7.verify.signerInfo[i].cert.digestAlgOid');
$certDigestAlgName = $json->stringOf('pkcs7.verify.signerInfo[i].cert.digestAlgName');
$contentType = $json->stringOf('pkcs7.verify.signerInfo[i].contentType');
$json->DtOf('pkcs7.verify.signerInfo[i].signingTime',0,$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');
$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');
$authAttrSigningTimeName = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.5\'.name');
$json->DtOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.5\'.utctime',0,$authAttrSigningTimeUtctime);
$authAttrSigningCertificateName = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.16.2.12\'.name');
$authAttrSigningCertificateDer = $json->stringOf('pkcs7.verify.signerInfo[i].authAttr.\'1.2.840.113549.1.9.16.2.12\'.der');
$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');
$i = $i + 1;
}
?>