Bug 250538

Summary:	Ark doesn't handle password-protected 7zip files with encrypted header properly
Product:	[Applications] ark	Reporter:	Joël Schaerer <joel.schaerer>
Component:	general	Assignee:	Harald Hvaal <metellius>
Status:	RESOLVED DUPLICATE
Severity:	wishlist	CC:	rakuco
Priority:	NOR
Version First Reported In:	2.14
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Joël Schaerer 2010-09-08 11:10:33 UTC

Version:           2.14 (using KDE 4.4.4) 
OS:                Linux

7zip offers two ways to encrypt files: encrypt file contents only, or encrypt the header, making it impossible to see the list of files without the password.

Ark supports the first type properly, by prompting for a password when the user tries to extract a file.

However it fails with the second type, trying for a while (~1 min) to read the archive, then failing with a "Reading the archive xxx. failed with the error 'Incorrect password'.

Reproducible: Always

Steps to Reproduce:
1. Create archive with 7zip: 7z -ptoto -mhe=on a somefile.txt
2. Try to open it with ark.


Expected Results:  
It would be nice to have ark fully support these files, however, it should at least fail immediately with a "Ark doesn't support encrypted-header 7z files at the moment" type of error message.

Comment 1 Raphael Kubo da Costa 2010-09-08 14:32:17 UTC


*** This bug has been marked as a duplicate of bug 35371 ***

Comment 2 Joël Schaerer 2010-09-08 15:22:31 UTC

Note that 7z and zip are entirely different formats, which is why I created a new bug for this.

Comment 3 Raphael Kubo da Costa 2010-09-08 15:38:07 UTC

I'm actually concentrating all the password-related bugs there -- many of the other duplicates are related to Ark failing with RAR files as well.