AES-256 encrypted zip files are the only reason I use 7z from the command line instead of File Roller. File roller should at least tell you what encryption it is using. The original .zip encryption is a joke by today's standards. I had to install 7z just to figure out what encryption file-roller/zip was actually using (AES-128 on Ubuntu 12.04).
Here is a short script for running 7z with AES-256 without typing your password on the command line (and thus entering it into the history): read -s -p "Please enter a password: " backup_pass backup_pass="'"$backup_pass"'" 7z a -tzip -p$password -mem=AES256 destFile.zip folderOrFileName unset backup_pass -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to file-roller in Ubuntu. https://bugs.launchpad.net/bugs/220654 Title: file-roller will not open 256 AES zip files Status in “file-roller” package in Ubuntu: Confirmed Bug description: Binary package hint: file-roller Winzip and many other zip programs can now produce zip files that are protected by 256 AES encryption. FIle-roller in ubuntu cannot handle these zips. The files within the zips are shown fine but when you try and extract the following error occurs: skipping: Test.txt unsupported compression method 99 I believe this is because "unzip" is used to extract the archive. This is the output from "unzip": dbrewer@HCC122J:~/Desktop$ unzip Test.zip Archive: Test.zip skipping: Test.txt unsupported compression method 99 If "7z" is used it works fine: dbrewer@HCC122J:~/Desktop$ 7z x Test.zip 7-Zip 4.51 beta Copyright (c) 1999-2007 Igor Pavlov 2007-07-25 p7zip Version 4.51 (locale=en_GB.UTF-8,Utf16=on,HugeFiles=on,2 CPUs) Processing archive: Test.zip Extracting Test.txt Enter password (will not be echoed) : Everything is Ok So I propose that file-roller uses "7z" instead of "unzip". I attach an example of this kind of file. The password is "monkey" (no quotes). Note peazip also can handle this. Maybe a replacement for file- roller? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/file-roller/+bug/220654/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
