Encrypt content list for Zip file

Question

Hi,

Is there any way to encrypt Zip file content list with your current Rebex.Zip ? Looks like right now only file content is encrypted but someone can still browse the zip file and see files inside even though its encrypted?

Thanks

Comments

I think I found my workaround. Double zip would do the trick. (First Zip with password and then zip again with password)

Thanks

Answer 1

This is part of Strong Encryption Specification (SES) format. Even though we could easily add support for it, we are not allowed to do this because SES is a "patented technology" and PKWARE refused to grant us a license:

"Regarding your request for a license for the Single Password Symmetric Encryption technology, PKWARE is discontinuing this licensing program and no further licenses will be issued under it. We are unable to grant your request." - PKWARE, Inc.

Sadly, this means we can't add support for ZIP content list encryption. Sorry! If we were allowed to, we would this feature a long time ago.

Double-zipping approach you used is the recommended workaround for this, and it's sufficient to only encrypt the second ZIP.