[Poppler-bugs] [Bug 99271] make it possible to extract digital signature data (also in pdfsig)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99271

Hans-Ulrich Jüttner <huj at froreich-bioscientia.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|poppler-bugs at lists.freedesk |huj at froreich-bioscientia.de
                   |top.org                     |
                 CC|                            |huj at froreich-bioscientia.de
             Status|NEW                         |ASSIGNED

--- Comment #2 from Hans-Ulrich Jüttner <huj at froreich-bioscientia.de> ---
Created attachment 131371
  --> https://bugs.freedesktop.org/attachment.cgi?id=131371&action=edit
Patch fixing this bug and adding support for specification of a validation time

The proposed patch would fix this bug.

The Qt5 interface in qt5/src/poppler-form.h gets the following new methods:
QString signerSubjectDN() const;
QString getHashAlgorithmName() const;
const QByteArray& getSignature() const;
QList<qint64> signedRangeBounds() const;
bool signsTotalDocument() const;

Moreover, the interface of method validate in qt5/src/poppler-form.h is
extended 
to take an optional validation time:
SignatureValidationInfo validate(int opt, const QDateTime& validationTime =
QDateTime()) const;

The binary pdfsig with this patch also tells the full Distinguished Name of the
signer and the Hash Algorithm used for signing.

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