Dear Ahmed:
Any open office file can be protected in a number of ways.
1)The entire file can be saved with a password, provided it is saved in
the appropriate Open office native format.
2)Spreadsheets in Calc can also be protected, with selective control; of
what cells are
Hi Ahmed and Bruce,
thanks for looking at this - I must admit that I am not very familiar
with the different cell/sheet protection features in Calc.
I just wanted to point that this is _not_ a security issue, and even not
a privacy issue.
Cell protection is a pure UI feature. The content is not
Good Morning Malte:
It is possible in that case that Oo needs to automatically encrypt Calc
sheets where sheet protection is activated, but not necessarily require a
password to open the file unless the file is saved with one.
This would seem to me to mean the need for a front end layer to the
On Thursday 29 October 2009 14:32:52 Ahamed Fasudeen wrote:
Hi Team,
I'm newly use openoffice...I have some query realted for password security.
Currently i'm using MSoffice2003. In that i have protect the sheet
workbook
And i have protect the cell A2:C22(attached sheet) with password
Hello,
Malte Timmermann schrieb:
Cell protection is a pure UI feature. The content is not encrypted in
the document (except for password protected documents).
So this issue might end up in a missing feature in Calc (cell protection
doesn't work w/o sheet protection), or in a bug that the xls
Hi Bruce,
short answer - encryption only makes sense when the key is provided from
the user, or some other source, like a private key certificate.
It is not possible for OOo to encrypt anything on it's own w/o using a
static hard coded password, or using a random password and store it in
the
Andrews wrote:
Mathias Bauer wrote:
Andrews wrote:
Following on the PDF concept - if Openoffice had a final command that
automatically converted a file to PDF, marked it final and date stamped
it (or digitally signed it), and then cleared the original this could be
a solution. It would then
On Mon, 7 Mar 2005, Andrews wrote:
[...] I have often wondered about the idea of identifying operators and
assigning a dedicated font to them so that their work would be easy to
identify [...]
Isn't that part of the review function?
I don't use it myself, but my father does regularly.
-Lars
Lars
Daniel Carrera wrote:
Andrews wrote:
Thanks for the reply - thought the format could be a problem, I suppose
one could export to PDF and then clear the original sheet - I am not
sure though how easy the PDF format could be edited.
PDF is not an editable format.
Give me a while to think
Justin Fitzgibbon wrote:
This security should be on two levels - lower which allows
changes on entering a password and locked _which prevents changes ever
being made.
If the contents of a document can be decrypted in order to view it
theres no way to then lock it against changes, or
Andrews wrote:
I firmly believe there is a need to provide document users with the
certainty that what they are using is actually final.
This is what the new digital signature system is supposed to provide. The
file is still editable, but if you edit it, the digital signature will
break and
On Tue, 2005-03-08 at 09:03, Andrews wrote:
[snip]
Another issue that I mentioned in my first email is the possibility of
turning a spreadsheet into an input form that users would only be able
to enter specified fields that the form would prompt them to fill in
and the entry validated for
Andrews wrote:
Following on the PDF concept - if Openoffice had a final command that
automatically converted a file to PDF, marked it final and date stamped
it (or digitally signed it), and then cleared the original this could be
a solution. It would then be nice to have a PDF viewer
On Sun, 06 Mar 2005 11:59:06 +0200, Andrews [EMAIL PROTECTED] wrote:
The ability to secure data at cell level, sheet level and workbook
level. This security should be on two levels - lower which allows
changes on entering a password and locked _which prevents changes ever
being made._ It would
Harald Schilly wrote:
Thanks have had a look at this and have used it a bit in the past
however it would be nice to see it go a step further in
* Final complete lock
* An indication on the printed form that this is a final unchangeable
sheet.
* Automatic highlighting of input cells
Thanks for
On Sun, 2005-03-06 at 10:44, Andrews wrote:
Harald Schilly wrote:
Thanks have had a look at this and have used it a bit in the past
however it would be nice to see it go a step further in
* Final complete lock
Why not just export as a pdf then? You don't need it in spreadsheet
format if
On Sunday 06 March 2005 09:59, Andrews wrote:
[snip]
Finally - what you have done, creating free and very useful software,
is a fantastic service to computer users all over the world - I just
have a concern that eventually the lack of financial reward could kill
the project. May I suggest
On Sun, 6 Mar 2005, Ian Lynch wrote:
On Sun, 2005-03-06 at 10:44, Andrews wrote:
* Final complete lock
Why not just export as a pdf then? You don't need it in spreadsheet
format if you are never going to edit the cells.
As far as I understand the issue it is a final complete lock of
Andrews wrote:
snip
This security should be on two levels - lower which allows
changes on entering a password and locked _which prevents changes ever
being made._
Hi Jeremy,
Good thought. :)
After reading the above, and thinking about it for a bit, I'm wondering
what kind of direction would
Mensaje citado por Justin Clift [EMAIL PROTECTED]:
Andrews wrote:
snip
This security should be on two levels - lower which allows
changes on entering a password and locked _which prevents changes ever
being made._
Hi Jeremy,
Good thought. :)
After reading the above, and thinking
Thanks for the reply - thought the format could be a problem, I suppose
one could export to PDF and then clear the original sheet - I am not
sure though how easy the PDF format could be edited. I notice also that
whereas Star Office had a PDF reader open office does not seem to have
one. I
Justin Clift wrote:
Maybe it's just a matter of making it not possible through OOo2 rather
than just not possible at all?
The problem is the same as with all other DRM strategies. Once you can
*see* the document, it is fundamentally impossible to prohibit changing.
The best you can do is
Andrews wrote:
Thanks for the reply - thought the format could be a problem, I suppose
one could export to PDF and then clear the original sheet - I am not
sure though how easy the PDF format could be edited.
PDF is not an editable format.
Give me a while to think about this problem you
This security should be on two levels - lower which allows
changes on entering a password and locked _which prevents changes ever
being made.
If the contents of a document can be decrypted in order to view it
theres no way to then lock it against changes, or prevent people
printing it etc,
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