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echasslau

Member

Registered: 2007-09-21

Posts: 113

Transparent platform independent file encryption

Hi.

My ISP provides me a 1000GB online drive through webdav for free. But I don't want to give him (and who knows else) all my private pictures/data.
Thats why I am looking for a platform independent (share with my windows friends) encryption on a file basis.
Is there a good solution for this? Found nothing...

Thanks, Andreas

urist

Member

Registered: 2009-02-22

Posts: 248

Re: Transparent platform independent file encryption

I'm doing a presentation on cryptology currently and am playing around with encrypting/decrypting files using OpenSSL. Instead of generating keys for you and all your friends, you can salt with a password. Perhaps that could be useful?

You can encrypt and decrypt from the command line. Your friends would also need a copy of OpenSSL or something else that supports the encryption method you use.

Alternately, how about a password-protected archive?

Last edited by urist (2010-10-14 05:22:07)

echasslau

Member

Registered: 2007-09-21

Posts: 113

Re: Transparent platform independent file encryption

Hmm, thought about it already . Found also bcrypt which is doing nearly the same.
The biggest problem is you have to encrypt and decrypt each file by hand. There is no transparent layer between.
This give massive problems when searching for one specific image. Also the sync with the webdav could be very complex.

I've >20GB of images. Up- or downloading a password-protected archive would last too long.

I think I've to drop the sharing - backup will be complex enough I think...

echasslau

Member

Registered: 2007-09-21

Posts: 113

Re: Transparent platform independent file encryption

I think I've to create a bash script and some kind of index file with the de- and encrypted md5 sums to check for differences...

echasslau

Member

Registered: 2007-09-21

Posts: 113

Re: Transparent platform independent file encryption

Found a program which exactly fit my needs: http://aur.archlinux.org/packages.php?ID=41801