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Is it possible to encrypt a single directory (or a group of directories) of a Mac? Is it possible with third-party software?

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possible duplicate of Mac OS X full-disk encryption, with Time Machine – Sathya♦ Aug 20 '10 at 3:57
I changed the question because I am really interested on encrypting a single directory, rather than creating a new partition, and encrypting it. – kiamlaluno Aug 20 '10 at 14:13
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5 Answers

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The two solutions below may be of use for you.

http://agilewebsolutions.com/knox

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

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up vote 4 down vote

another third party solution is truecrypt. I use it with OS X, Ubuntu and Windows.

TrueCrypt is open source.

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up vote 2 down vote

It looks like you have edited your question so that it now refers to encrypted directories, not volumes. While you cannot encrypt directories directly, as far as I know, you can use encrypted disk images to protect files on your hard drive without encrypting the entire drive.

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I apologize for the change. I was taking the assumption it was not possible to encrypt single directories; when I saw the reply about File Vault, I remembered what I was first trying to do, and I changed the question. – kiamlaluno Aug 20 '10 at 14:18
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up vote 1 down vote

For a third party solution I would recommend PGP whole disk encryption http://www.pgp.com/products/wholediskencryption/index.html

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up vote -1 down vote

Yes, this is possible.

System Preferences --> Security --> File Vault

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File Vault encrypts only the home directory, not the full hard disk. – kiamlaluno Aug 20 '10 at 6:14
My apologies. Another answer has been posted. – JFW Aug 21 '10 at 5:38
I changed my question. I forgot about File Vault, and if I can keep the files under the home directory of my account, then I can use it. I remember I read the files in an encrypted home directory would not be readable from Windows (or they would not be shareable with a Windows PC). Can you confirm if that is true? – kiamlaluno Aug 21 '10 at 6:43
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