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I am looking for an application which would allow me to encrypt either a file or a folder. Something like right click on a file/folder, select Encrypt, give it a password and ready.

Of course, it should also be able to afterwards decrypt the said file/folder.

Is there such a thing?

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6 Answers 6

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Espionage is also a paid app, but should be 'better' then Knox.

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    Could you explain why it 'should be better' than Knox?
    – Pauk
    Mar 26, 2011 at 14:44
  • Iam also curious about that
    – TomaszSobczak
    Mar 26, 2011 at 15:08
  • Espionage seems interesting, by glancing quickly on their website, seems to be exactly what I need. Thanks! Will give it a shot.
    – Stelian Iancu
    Mar 27, 2011 at 6:36
  • @tomaszsobczak and @Pauk: AFAIK Knox is like the build in described by "Loïc Wolff", and the images/vaults can be opened without having Knox installed - even the 256-bit. With Espionage you get a better security, and it is AFAIK only possible to open the encrypted (file/folder/app) with Espionage.
    – Rene Larsen
    Mar 27, 2011 at 10:05
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You can do it with a .dmg.

  • Open Disk utility
  • Select New Image or File > New > Blank disk image
  • Choose the name, where to put it, the size (it will be pre-allocated)
  • Choose an encryption
  • Leave the other settings by default
  • Choose a password

Now, all you have to do when you want to access that folder, is open the .dmg file.

And it's free.

I found an app that took care of all of that in 2-3 easy steps but can't seem to find it again. You might have more luck.

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  • I know about the encrypted .dmg, I don't want that as I have only a couple of files/folders that need encryption and they are already scattered in different places in my filesystem.
    – Stelian Iancu
    Mar 27, 2011 at 6:36
  • @StelianIancu You should create DMGs for them (or one big DMG for all of them), copy the folders into the DMG, and replace the original folders with aliases or symlinks. As a bonus, OS X will automatically mount the DMG is it's closed and you try to open one of the aliases. It's a much better solution than third party software, really.
    – Josh
    Jan 6, 2012 at 13:28
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You can also have a look at the Mac GNU Privacy Guard, which brings GnuPG to Mac OS X, together with the GPGFileTool.

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You could have a look at TrueCrypt. Whilst it's not a file/folder encryption solution, it creates encrypted volumes from files like the .dmg route, but it's cross platform (if you choose an appropriate file system on the encrypted volume)

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Knox is paid app but i can really recommend it

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    It's probably worth mentioning it's built on FileVault which is part of OS X. Knox adds things like ease of use and scheduling of volumes for backup (to say your Dropbox account).
    – Pauk
    Mar 26, 2011 at 14:46
  • Knox seems to do the same as encrypted .dmgs, they even say you can open the vaults without even having it installed.
    – Stelian Iancu
    Mar 27, 2011 at 6:36
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I usually recommend Espionage to my clients :)

It's awesome and easy to use.

enter image description here

http://www.taoeffect.com/espionage/

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    This application was already recommended.... I see no point in providing the same answer...
    – Felix
    Mar 31, 2011 at 22:41

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