Re: Signature process in LibreOffice 6.3

2020-02-10 Thread Michael Stahl
On 07.02.20 20:13, Steve Martin wrote: Document signatures shall be stored in a file called META-INF/documentsignatures.xml in the package as described in section 3.5 of the OpenDocument specification part 3. Document signatures shall contain a element for each file within the package,

Re: Signature process in LibreOffice 6.3

2020-02-08 Thread Kaleun
Hi Oliver, Oliver Brinzing wrote > you added a new file into the zip package *after* signing the document. Yeah, thats correct. Oliver Brinzing wrote > [...] LO checks all files inside the zip package during opening > and if it finds a changed file or a file which is not listed in >

Re: Signature process in LibreOffice 6.3

2020-02-07 Thread Steve Martin
Hi Mike, thanks for your fast reply. Note that "Document signatures shall contain a element *for each file within the package*", and the contents of Thumbnails is not listed aming the exceptions. I've understood. The file documentsignatures.xml needs a element for my

Re: Signature process in LibreOffice 6.3

2020-02-07 Thread Oliver Brinzing
Hi Steve, you added a new file into the zip package *after* signing the document. I *guess* (did not check the source code) LO checks all files inside the zip package during opening and if it finds a changed file or a file which is not listed in "documentsignatures.xml" it will invalidate the

Signature process in LibreOffice 6.3

2020-02-07 Thread Steve Martin
Hello, my name is Steve Martin and I am an enrolled student at the Ruhr University Bochum. I have a question regarding the implementation of the signature process in LibreOffice. I use a self-created X.509 certificate for signing my ODT documents. As soon as I sign my ODT document, the file

Re: Signature process in LibreOffice 6.3

2020-02-07 Thread Mike Kaganski
Hi, On 2020-02-07 18:46, Steve Martin wrote: After I signed the document, I decompressed it again and copied the meta.xml file into the Thumbnails directory. Thanks to the previously added file entry in the manifest.xml file, I can now compress all the partial files back into a ZIP archive