Perl
Perl
Get PDF DSS (Document Security Store)
See more PDF Signatures Examples
This example demonstrates how to extract the information from a PDF's DSS (Document Security Store), if a /DSS exists. (Just because a PDF is signed does not mean a /DSS will exists. In fact, the /DSS is typically created at the point of adding the 2nd or greater signature because the /DSS contains LTV (long term validation) information about the previous signature at the time of adding an additional signature.)Note: This example requires Chilkat v9.5.0.85 or greater.
Chilkat Perl Downloads
use chilkat();
$success = 0;
# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
$pdf = chilkat::CkPdf->new();
$success = $pdf->LoadFile("qa_data/pdf/sign_testing_1/helloSigned2.pdf");
if ($success == 0) {
print $pdf->lastErrorText() . "\r\n";
exit;
}
$json = chilkat::CkJsonObject->new();
$json->put_EmitCompact(0);
$success = $pdf->GetDss($json);
print $json->emit() . "\r\n";
# The document security store contains certificates, OCSP responses, and CRLs.
# The following JSON is a sample of what the /DSS can contain.
# Unfortunately, our sample contains /Certs and /OCSPs, but no /CRLs.
# It's no problem because whatever JSON you get back, you can use the
# following online tool to generate code to parse.
# Generate Parsing Code from JSON
# The code generated by the online tool for this JSON is shown below..
# {
# "/VRI": {
# "/EC5BB34CC1F8A0C5FE674427E16E313A08C80808": {}
# },
# "/Certs": [
# {
# "serial": "02",
# "validFrom": "2011-08-07T19:00:00-05:00",
# "validTo": "2021-08-10T23:59:59-05:00",
# "expired": false,
# "subject": {
# "CN": "XYZ Corporation",
# "O": "XYZ"
# },
# "issuer": {
# "CN": "XYZ Corporation",
# "O": "XYZ"
# },
# "keyType": "RSA",
# "keySize": "2048",
# "der": "MIIDz...Q4Zt"
# },
# {
# "serial": "01",
# "validFrom": "2011-08-07T19:00:00-05:00",
# "validTo": "2021-08-10T23:59:59-05:00",
# "expired": false,
# "subject": {
# "CN": "XYZ Corporation",
# "O": "XYZ"
# },
# "issuer": {
# "CN": "XYZ Corporation",
# "O": "XYZ"
# },
# "keyType": "RSA",
# "keySize": "2048",
# "der": "MIID...jXYFc="
# },
# {
# "serial": "0AA125D6D6321B7E41E405DA3697C215",
# "validFrom": "2016-01-07T06:00:00-06:00",
# "validTo": "2031-01-07T12:00:00-06:00",
# "expired": false,
# "subject": {
# "CN": "DigiCert SHA2 Assured ID Timestamping CA",
# "OU": "www.digicert.com",
# "O": "DigiCert Inc",
# "C": "US"
# },
# "issuer": {
# "CN": "DigiCert Assured ID Root CA",
# "OU": "www.digicert.com",
# "O": "DigiCert Inc",
# "C": "US"
# },
# "keyType": "RSA",
# "keySize": "2048",
# "der": "MIIF...OUg=="
# },
# {
# "serial": "04CD3F8568AE76C61BB0FE7160CCA76D",
# "validFrom": "2019-09-30T19:00:00-05:00",
# "validTo": "2030-10-17T00:00:00-05:00",
# "expired": false,
# "subject": {
# "CN": "TIMESTAMP-SHA256-2019-10-15",
# "O": "DigiCert, Inc.",
# "C": "US"
# },
# "issuer": {
# "CN": "DigiCert SHA2 Assured ID Timestamping CA",
# "OU": "www.digicert.com",
# "O": "DigiCert Inc",
# "C": "US"
# },
# "keyType": "RSA",
# "keySize": "2048",
# "der": "MIIG...MJtPc="
# },
# {
# "serial": "0CE7E0E517D846FE8FE560FC1BF03039",
# "validFrom": "2006-11-09T18:00:00-06:00",
# "validTo": "2031-11-10T00:00:00-06:00",
# "expired": false,
# "subject": {
# "CN": "DigiCert Assured ID Root CA",
# "OU": "www.digicert.com",
# "O": "DigiCert Inc",
# "C": "US"
# },
# "issuer": {
# "CN": "DigiCert Assured ID Root CA",
# "OU": "www.digicert.com",
# "O": "DigiCert Inc",
# "C": "US"
# },
# "keyType": "RSA",
# "keySize": "2048",
# "der": "MIIDt...FL6Lw8g=="
# },
# {
# "serial": "E4D34D01798BE686424AF7F6F0C3BF41",
# "validFrom": "2015-03-24T10:58:16-05:00",
# "validTo": "2039-12-31T23:59:59-06:00",
# "expired": false,
# "subject": {
# "CN": "www.xyz.com"
# },
# "issuer": {
# "CN": "www.xyz.com"
# },
# "keyType": "RSA",
# "keySize": "1024",
# "der": "MIIB9DCCAWG...UR10lz"
# }
# ],
# "/OCSPs": [
# {
# "responseStatus": 0,
# "responseTypeOid": "1.3.6.1.5.5.7.48.1.1",
# "responseTypeName": "ocspBasic",
# "response": {
# "responderIdChoice": "KeyHash",
# "responderKeyHash": "Reuir/SSy4IxLVGLp6chnfNtyA8=",
# "dateTime": "20201005173921Z",
# "cert": [
# {
# "hashOid": "1.3.14.3.2.26",
# "hashAlg": "SHA-1",
# "issuerNameHash": "98S+C0C1w0QzPT+uuU1uONr67FE=",
# "issuerKeyHash": "Reuir/SSy4IxLVGLp6chnfNtyA8=",
# "serialNumber": "0AA125D6D6321B7E41E405DA3697C215",
# "status": 0,
# "thisUpdate": "20201005173921Z",
# "nextUpdate": "20201012173921Z"
# }
# ]
# }
# },
# {
# "responseStatus": 0,
# "responseTypeOid": "1.3.6.1.5.5.7.48.1.1",
# "responseTypeName": "ocspBasic",
# "response": {
# "responderIdChoice": "KeyHash",
# "responderKeyHash": "9LbhIB3+Ka7S5GGlsqIlssgXNW4=",
# "dateTime": "20201006114501Z",
# "cert": [
# {
# "hashOid": "1.3.14.3.2.26",
# "hashAlg": "SHA-1",
# "issuerNameHash": "+YYA+KSr7NIxRSxCjUNQo25SyD0=",
# "issuerKeyHash": "9LbhIB3+Ka7S5GGlsqIlssgXNW4=",
# "serialNumber": "04CD3F8568AE76C61BB0FE7160CCA76D",
# "status": 0,
# "thisUpdate": "20201006114501Z",
# "nextUpdate": "20201013110001Z"
# }
# ]
# }
# }
# ]
# }
$responseDateTime = chilkat::CkDtObj->new();
$thisUpdate = chilkat::CkDtObj->new();
$nextUpdate = chilkat::CkDtObj->new();
$i = 0;
$count_i = $json->SizeOfArray("/Certs");
while ($i < $count_i) {
$json->put_I($i);
$serial = $json->stringOf("/Certs[i].serial");
$validFrom = $json->stringOf("/Certs[i].validFrom");
$validTo = $json->stringOf("/Certs[i].validTo");
$expired = $json->BoolOf("/Certs[i].expired");
$subjectCN = $json->stringOf("/Certs[i].subject.CN");
$subjectO = $json->stringOf("/Certs[i].subject.O");
$issuerCN = $json->stringOf("/Certs[i].issuer.CN");
$issuerO = $json->stringOf("/Certs[i].issuer.O");
$keyType = $json->stringOf("/Certs[i].keyType");
$keySize = $json->stringOf("/Certs[i].keySize");
$der = $json->stringOf("/Certs[i].der");
$subjectOU = $json->stringOf("/Certs[i].subject.OU");
$subjectC = $json->stringOf("/Certs[i].subject.C");
$issuerOU = $json->stringOf("/Certs[i].issuer.OU");
$issuerC = $json->stringOf("/Certs[i].issuer.C");
$i = $i + 1;
}
$i = 0;
$count_i = $json->SizeOfArray("/OCSPs");
while ($i < $count_i) {
$json->put_I($i);
$responseStatus = $json->IntOf("/OCSPs[i].responseStatus");
$responseTypeOid = $json->stringOf("/OCSPs[i].responseTypeOid");
$responseTypeName = $json->stringOf("/OCSPs[i].responseTypeName");
$responseResponderIdChoice = $json->stringOf("/OCSPs[i].response.responderIdChoice");
$responseResponderKeyHash = $json->stringOf("/OCSPs[i].response.responderKeyHash");
$json->DtOf("/OCSPs[i].response.dateTime",0,$responseDateTime);
$j = 0;
$count_j = $json->SizeOfArray("/OCSPs[i].response.cert");
while ($j < $count_j) {
$json->put_J($j);
$hashOid = $json->stringOf("/OCSPs[i].response.cert[j].hashOid");
$hashAlg = $json->stringOf("/OCSPs[i].response.cert[j].hashAlg");
$issuerNameHash = $json->stringOf("/OCSPs[i].response.cert[j].issuerNameHash");
$issuerKeyHash = $json->stringOf("/OCSPs[i].response.cert[j].issuerKeyHash");
$serialNumber = $json->stringOf("/OCSPs[i].response.cert[j].serialNumber");
$status = $json->IntOf("/OCSPs[i].response.cert[j].status");
$json->DtOf("/OCSPs[i].response.cert[j].thisUpdate",0,$thisUpdate);
$json->DtOf("/OCSPs[i].response.cert[j].nextUpdate",0,$nextUpdate);
$j = $j + 1;
}
$i = $i + 1;
}