https://bugs.freedesktop.org/show_bug.cgi?id=58442
Priority: medium
Bug ID: 58442
Assignee: [email protected]
Summary: If Microsoft Word adds another signature to document
originally signed by LibreOffice it causes LibreOffice
to prompt saying file is corrupt
Severity: normal
Classification: Unclassified
OS: All
Reporter: [email protected]
Hardware: All
Status: UNCONFIRMED
Version: 3.6.1.2 release
Component: framework
Product: LibreOffice
Created attachment 71705
--> https://bugs.freedesktop.org/attachment.cgi?id=71705&action=edit
A file that exhibits this behaviour - signed by LO, then Word.
When MS Word adds a signature to a document which was originally signed by
LibreOffice, LibreOffice then reports the document as being corrupt.
Repro steps:
1) Boot LibreOffice
3) Under File menu, click Digital Signatures
4) Now click "Sign Document" button, agree to save the document and add a
digital signature using a SHA1 cert
5) Exit LibreOffice
6) Open file you just created in MS Word (signature is considered valid)
8) File -> Info -> Protect Document -> Add a Digital signature
9) Choose an RSA certificate that uses a SHA1 hash (DSA is fine too)
10) Click Sign
11) Notice signatures are considered valid by Word (are on reopen too)
12) Exit Word
13) Open document in LibreOffice
Expected:
For file to open file and signatures to be considered valid
Actual:
LibreOffice will prompt saying the file is corrupt and needs to be repaired
We think the signatures are being stored correctly by MS Word, and that this is
a LibreOffice bug on open.
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