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Cross-platform encryption tool for data sharing
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OreoCookie
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Apr 8, 2018, 07:05 PM
 
I need to exchange some sensitive legal documents amongst my family, but at least my sister is using Windows. We could send around encrypted zip files, but that seems pedestrian. Is there a way to have something like an encrypted disk image that I can leave in my Dropbox folder and then share it? The point is less about safe storage (my Mac's volume is encrypted), but about simple and safe sharing.
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reader50
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Apr 8, 2018, 07:50 PM
 
Are you the only person who would modify the contents? Or do you need multiple people to have write access?

If there's only one person who posts stuff, encrypted zip files would work. If this is more of a collaborative effort, you might set up a dedicated VPN server and make everyone log in.
     
OreoCookie  (op)
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Apr 8, 2018, 09:08 PM
 
I'd exchange the documents amongst my siblings. My brother is very IT-savvy (he's a sys admin), but my sister is not. One idea I have had was to have an encrypted ISO file on a Dropbox volume or so. If it were just him and me, we could probably life with a Mac-centric solution, too, although his primary computer is AFAIK a Surface Book. I could set up a VPN, but honestly, I'd probably prefer a less technically involved solution — for my sister's sake.
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mindwaves
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Apr 9, 2018, 01:05 AM
 
Password protected Dropbox/Google Drive, should be enough. No need to encrypt them further (unless you worry about Google mining the data).
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BadKosh
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Apr 9, 2018, 02:18 PM
 
PGP? PKI - Entrust ??
     
turtle777
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Apr 9, 2018, 02:47 PM
 
I still use Trucrypt. Clients exist for OS X and Windows.

Warning: you absolutely have to use v7.1a.
7.2 is not to be trusted, rumors are it’s compromised (canary ?).

Get 7.1a here:

https://www.grc.com/misc/truecrypt/truecrypt.htm

Gibson Research's audit found no security flaws or issues with 7.1a.

-t
     
Doc HM
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Apr 10, 2018, 10:21 AM
 
Originally Posted by turtle777 View Post
I still use Trucrypt. Clients exist for OS X and Windows.

Warning: you absolutely have to use v7.1a.
7.2 is not to be trusted, rumors are it’s compromised (canary ?).

Get 7.1a here:

https://www.grc.com/misc/truecrypt/truecrypt.htm

Gibson Research's audit found no security flaws or issues with 7.1a.


-t
Still, that's not a good look for a security app, in any version.
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turtle777
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Apr 10, 2018, 02:33 PM
 
Originally Posted by Doc HM View Post
Still, that's not a good look for a security app, in any version.
Only if you don’t do your homework, and disregard history.
TruCrypt was THE go-to tool up until “something unspeakable” happened.

After GRC confirmed the old source code is w/o errors and safe, there’s no reason to not use it.

I’m not sure what your solution would be: picking a secure encryption tool w/ondoing any homework and checking it’s pedigree ?

-t
     
   
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