[Bug 35613] New: Foxit Reader unable to validate digital signatures

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35613

            Bug ID: 35613
           Summary: Foxit Reader unable to validate digital signatures
           Product: Wine
           Version: 1.7.12
          Hardware: x86
               URL: http://www.foxitsoftware.com/downloads/
                OS: Linux
            Status: NEW
          Keywords: download
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: wine-bugs at winehq.org
          Reporter: dimesio at earthlink.net
    Classification: Unclassified

Created attachment 47561
  --> http://bugs.winehq.org/attachment.cgi?id=47561
Log from opening sample PDF and clicking on signature

Tested with FoxitReader612.12241_enu_Setup.exe and sample signed PDF downloaded
from http://blogs.adobe.com/security/SampleSignedPDFDocument.pdf.

To reproduce:

1. Install Foxit Reader.
2. Open sample signed PDF from Adobe.
3. Click on the signature in the document.
4. A Signature Validation Status window pops up that says:

Signature is INVALID.
- The document has been altered or corrupted since the Signature was applied.
- The signer's identity has not yet been verified.

5. Clicking on the Signature Properties button brings up the Signature
Properties window, but the Show Certificate button is greyed out.

In Windows (tested XP & 7 in a VM), the first time you try to validate the
signature the message in the Signature Validation Status window is:

Signature validity is UNKNOWN.
- The document has not been modified since the signature was applied.
- The signer's identity is unknown because it has not been included in your
list of trusted identities and none of its parent certificates are trusted.
- The certificate has exceeded the time of validity.

However, in Windows the Show Certificate button on the Signature Properties
window works and takes you to a dialog that allows you to import the
certificate. Once that is done, the message from clicking on the signature is:

Signature is VALID, signed by John B Harris ,jbharris at adobe.com>
- The document has not been modified since this signature was applied.
- The signer's identity is valid.
- The certificate has exceeded the time of validity. 

I'm attaching a log from opening the sample PDF and clicking on the signature
in a clean wineprefix. Copying mfc42u.dll and msasn1.dll to the wineprefix's
system32 directory gets rid of the console error messages about them, but does
not change the app's behavior.

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