PubSec Digital signatures in Acrobat 9

Question

Hi,
i m developing a digital signature plug-in, PubSec, to be specific. My plugin will, hopefully, digitally sign open pdf, and also able to verify them. The signature i am creating will be standard so that any other plugin, including Acrobat's own, can also verify it, and my plugin can verify others too. For this, i will leave the Filter unset and only set subfilter appropriately.
Now, when implementing the signature creation and verification callbacks i found it very difficult, and in some cases am stuck, while getting required information from the provided arguments of the callbacks. For instance, from this structure "PSSigValidateDialogParams" i want to extract information such as:
- signature's verification status
- signer's certificate
- reason location, etc.
But so far i can only get the verification status as:
ASInt32 sigValDigest = ASCabGetInt( sigValCab,  PROP_SigVal_Digest,  kDSSigValUnknown   );
ASInt32 sigValTrustFlags = ASCabGetInt( sigValCab,  PROP_SigVal_TrustFlags,  kDSSigValUnknown   );
ASInt32 sigValId = ASCabGetInt( sigValCab,  PROP_SigVal_Id,  kDSSigValUnknown );
And i dont even completely understand what each of these mean. And i cannot get the rest of the info from the structure as well, as i cant find any discription about them in documentation. I did find a "Digital signature API Reference" document for acrobat 6, but none for acrobat 9. And even in acrobat 6, there is no description for most of the functions and structure, just the prototype.
Please help me get the above information from the PSSigValidateDialogParams, or atleast point me towards the documentation of the digital signature api reference for acrobat 9. Thanks

Answer 1

Hi,
Go to: http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/API_References/Acrobat_API_Refer ence/Digital_Signatures/PubSec.html#kPSSigTrustUntrusted
and search for  DSValidState
enum DSValidState {  DSSigBlank = 0,
  DSSigUnknown,
  DSSigInvalid,
  DSSigValid,
  DSSigDoubleChecked,
  DSSigValidStateEnumSize
and here: http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/API_References/Acrobat_API_Refer ence/Digital_Signatures/PubSec.html#kPSSigTrustAll
enum DSSigValState {  kDSSigValUnknown = 0,
  kDSSigValUnknownTrouble,
  kDSSigValUnknownBytesNotReady,
  kDSSigValInvalidTrouble,
  kDSSigValUnused,
  kDSSigValJustSigned,
  kDSSigValFalse,
  kDSSigValTrue,
  kDSSigValEnumSize
Regards,
mwak