Perl Requires Chilkat v11.0.0+
Perl
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 Perl Downloads
use chilkat();
$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 = chilkat::CkCrypt2->new();
$crypt->put_HashAlgorithm("sha256");
$crypt->put_EncodingMode("base64");
$base64Hash = $crypt->hashStringENC("Hello World");
$http = chilkat::CkHttp->new();
$requestToken = chilkat::CkBinData->new();
$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() . "\r\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 = chilkat::CkHttpResponse->new();
$success = $http->HttpBd("POST",$tsaUrl,$requestToken,"application/timestamp-query",$resp);
if ($success == 0) {
print $http->lastErrorText() . "\r\n";
exit;
}
# Get the timestamp reply from the HTTP response object.
$timestampReply = chilkat::CkBinData->new();
$resp->GetBodyBd($timestampReply);
# Show the base64 encoded timestamp reply.
print $timestampReply->getEncoded("base64") . "\r\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 = chilkat::CkCert->new();
$success = $tsaCert->LoadFromFile("qa_data/certs/freetsa.org.cer");
if ($success == 0) {
print $tsaCert->lastErrorText() . "\r\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() . "\r\n";
exit;
}
print "pkiStatus = " . $pkiStatus . "\r\n";
$json = chilkat::CkJsonObject->new();
$http->GetLastJsonData($json);
$json->put_EmitCompact(0);
print $json->emit() . "\r\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 = chilkat::CkDtObj->new();
$authAttrSigningTimeUtctime = chilkat::CkDtObj->new();
$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) {
$json->put_I($i);
$strVal = $json->stringOf("pkcs7.verify.digestAlgorithms[i]");
$i = $i + 1;
}
$i = 0;
$count_i = $json->SizeOfArray("pkcs7.verify.signerInfo");
while ($i < $count_i) {
$json->put_I($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;
}