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(CkPython) Get PDF DSS (Document Security Store)See more PDF Signatures ExamplesThis 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.
import sys import chilkat # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. pdf = chilkat.CkPdf() success = pdf.LoadFile("qa_data/pdf/sign_testing_1/helloSigned2.pdf") if (success == False): print(pdf.lastErrorText()) sys.exit() json = chilkat.CkJsonObject() json.put_EmitCompact(False) success = pdf.GetDss(json) print(json.emit()) # 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() thisUpdate = chilkat.CkDtObj() nextUpdate = chilkat.CkDtObj() 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",False,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",False,thisUpdate) json.DtOf("/OCSPs[i].response.cert[j].nextUpdate",False,nextUpdate) j = j + 1 i = i + 1 |
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