Bug 48444 - FILESAVE: Password protected files can't be opened in earlier versions
Summary: FILESAVE: Password protected files can't be opened in earlier versions
Status: RESOLVED NOTABUG
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
3.5.1 release
Hardware: All All
: medium normal
Assignee: Not Assigned
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Reported: 2012-04-08 15:07 UTC by Andy
Modified: 2012-04-09 00:11 UTC (History)
0 users

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Description Andy 2012-04-08 15:07:05 UTC 
Files saved from Calc 3.5 with a password fail to open with version 3.4 or earlier. This was tested on Ubuntu and Windows. The error message is:

Read-Error.
Format error discovered in the file sub-document content.xml at 1.0(row,col).

Steps to reproduce:

1. Open Calc in a system with 3.5 installed (e.g. Ubuntu Precise)
2. Enter any content
3. Save with a password
4. Transfer file to system with 3.4 installed (e.g. Ubuntu Oneiric)
5. Attempt to open file

This can be a problem when exchanging secure data between sites which have upgraded and sites which have not.
Comment 1 Markus Mohrhard 2012-04-09 00:11:50 UTC 
See the release notes regarding encryption. We changed encryption algorithms for 3.5 and 3.4.5

http://wiki.documentfoundation.org/ReleaseNotes/3.5#Different_Encryption_Algorithm