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TrueCrypt Setup for Network HD Folder (simultaneous access but not simultaneous changes)

Posted on 2009-05-10
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Last Modified: 2013-11-08
Hello,

Im having a hard time understanding the TrueCrypt limitation(s) on sharing encrypted files amongst multiple users that all have access to a shared network hard drive (the dive has a common drive letter mapped to each User PC).

We have a small office network comprised of a router, User 1 PC (XP Pro), User 2 PC (XP Pro), User 3 PC (XP Pro), and a network hard drive.  Everything is stored on the network hard drive and nothing is stored on the User 1, the User 2, or the User 3 PC.

In terms of workflow, we routinely generate a series of updated materials for Customer A, Customer B, Customer C, etc.  The updating process requires verbal (but not electronic) collaboration amongst each of the Users.  For example, User 1 opens a file, makes updates, closes the file, and then verbally informs User 2 that the file is ready for User 2 inputs.  User 2 opens the file, makes changes, closes the file, and then informs User 3 that the file is ready for their inputs.  

Each customer has a unique folder containing a set of sub-folders and each sub-folder is comprised of multiple files.  When updates are being made, Users 1, 2 and 3 are working on multiple customer folders in the same span of time but *never* on the same file at the same time.

What I would like to do: 1) create a single TrueCrypt combined-customer folder on the mapped hard drive that contains all of our customer folders, sub-folders and files; 2) allow each User to have simultaneous access to the TrueCrypt combined-customer folder (for making sequential but *not* simultaneous changes to individual files).

With the usage scenario described above, Im concerned about the potential for file corruption based on what Ive read on Experts-Exchange as well as the TrueCrypt knowledge base.

In terms of what Im trying to protect against, please: 1) compromise of customer data should the network hard drive ever be physically removed from the office and 2) compromise of customer data whenever the TrueCrypt combined-customer folder is not in use and is un-mounted.

Thanks!
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Question by:blockmental
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coredatarecovery earned 250 total points
ID: 24360076
I'd trade in your truecrypt in this case for a maxtor Black Armor hard disk.

Once it's unlocked, it is just a hard disk to the OS. No software required, and If someone steals the drive, without the password it's useless.

No need to deal with possible corruptions/software encryption in this case. If it was on 1 computer and only that computer was reading/writing to the drive, I'd say Great! use truecrypt. but in your case I'd go hardware encryption all the way.
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Author Closing Comment

by:blockmental
ID: 31580029
Thanks!  Not having to deal with the TrueCrypt issue would be a REALLY big plus on this end.  
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