Cannot open ZIP file with 256-AES encryption created by 7-Zip

[GoogleCodeExporter]

I created a ZIP file using 7-ZIP with AES-256 encryption.  When I attempted to 
opent he file on MAC OS 10.6, I received an error for every file open attempt 
indicated that the file was corrupted.

The file in question is attached.  The encryption key is IvC2/qvj

Original issue reported on code.google.com by rcoving...@documentguard.com on 5 Apr 2011 at 1:59

Attachments:

• rcovington@documentguard.com.zip

[GoogleCodeExporter]

Confirmed. I'll add it to the list of things that need fixing.

Original comment by paracel...@gmail.com on 5 Apr 2011 at 8:09

• Changed state: Accepted
• Added labels: Priority-Medium, Type-Defect

[GoogleCodeExporter]

Hahah, it turns out that this was because of a bug in the handling of Zip64 
files. Almost no programs actually create valid Zip64 files, even when they 
have to (they just create completely broken Zip files for files over 4GB and 
leave it to the unpacker to try and guess what's going on instead). But 
apparently 7-Zip actually DOES create Zip64 now.

My Zip64 code was broken because I've never even been able to find a file that 
uses it. Well, should be fixed now.

Original comment by paracel...@gmail.com on 6 Apr 2011 at 11:02

• Changed state: Fixed

[GoogleCodeExporter]

I am most appreciative of your assistance!

Original comment by rcoving...@documentguard.com on 7 Apr 2011 at 12:43

[GoogleCodeExporter]

When will the fix be reflected in the downloadable version?

Original comment by rcoving...@documentguard.com on 7 Apr 2011 at 12:23

[GoogleCodeExporter]

Hopefully fairly soon, it's mostly done.

Original comment by paracel...@gmail.com on 7 Apr 2011 at 12:26