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Questions tagged [encrypting-file-system]

The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS that provides filesystem-level encryption.

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2k views

How to mount LUKS partition securely on server

I'm curious if it is possible to mount a partition encrypted by cryptsetup with LUKS securely and automatically on Ubuntu 10.0.4 LTS. For example, if I use the key for the encrypted partition, than ...
3
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1answer
155 views

Why make random file for loopback device for encrypted file system?

I have read a few tutorials on setting up an encrypted file system using cryptsetup. They all start with the following creation of a random file dd if=/dev/urandom of=/etc/cryptfile bs=1M count=10 ...
2
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2answers
130 views

Keeping a Secret

I have a .NET Windows Service that needs to store a secret on the machine and protect that secret from local system administrators. It is OK if domain admins have access. This secret is not user ...
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3answers
935 views

EFS encrypted file, impossible to delete

I have a SBS 08. A user received some files send from a mac. He unzipped it with his windows 7 locally and copied it on a network shared drive on the SBS. The files (some fonts) were already in green ...
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2answers
3k views

Large temp files created in Windows Server 2003 temp folder

I'm managing a Windows Server 2003. A couple of times the server has crashed with error message saying that the C: drive is full. After searching folders to free up space, I found that lot of temp ...
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1answer
212 views

Linux crypted filesystem : is there actually big issues?

as a SaaS provider with sensitive informations we think about crypted filesystem (under Linux) but is there any problem about performances or maintenance if the filesystem crash? We want to use it on ...
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1answer
731 views

Fix a Truecrypt Volume

I've have a backup volume using truecrypt (USB Disk, entire disk (eg /dev/sdb)) accidentally added to a Windows System and then using windows that disk has been initialized. No other action has been ...
0
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1answer
453 views

Debug USB Mouse/Keyboard on Windows XP?

I have an older hard drive that has some EFS data on it. I tried booting from the HD, but as soon as the Windows boot, the USB Mouse and KB goes off. The HD has an older version of Windows so it's ...
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1answer
3k views

How secure is encfs

Like others on this site, I am considering using encfs + sshfs for secure offsite backups. I am wondering how robust encfs is to brute force attacks? Do some users use the --stdinpass command with a ...
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2answers
347 views

Windows EFS file sharing anomaly

Fyi, I can confirm this happening in Windows Vista (Business) and Windows 7 Professional in WORKGROUP mode (as both a client and a server). I am not totally sure if this is a Superuser question or a ...
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2answers
267 views

Decrypting EFS w/o altering timestamp - possible?

I'd like to decrypt some EFS-encrypted files, but I do not know how to do that without altering the timestamp. When encrypting/decrypting files, the modified-time is set to the current time. I'd like ...
0
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1answer
222 views

Recover EFS encrypted files

I have a machine here that is joined to a domain. Some days ago, I did a disk image of that workstation because the HDD was begin to fail. I put the new drive in the machine and the user now complains ...
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1answer
123 views

How can I make a dm-crypt folder world writeable?

I've set up an encrypted directory with dm-crypt. how can I make it world writeable (for my ftp server)?
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1answer
519 views

How to create a local IIS site with encrypted wwwroot using EFS on Vista

I'm preparing a laptop to take with me while travelling, so all my user data is encrypted using EFS in case someone decides to steal it. I also need to set up a couple of local sites for development ...
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4answers
1k views

Sql Server - Error attaching mdf file encrypted via Encrypted File System (EFS)

I am getting an error trying to attach a database whose files were previously encrypted via EFS. The actuall error message is Msg 5120, Level 16, State 101, Line 9 Unable to open the physical file "C:...
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3answers
4k views

Can EFS be set on a per group basis?

I've been asked to create some file store for our directors that will contain sensitive information. They have asked that it not be possible for other admins to read the data. I immediately thought ...
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2answers
5k views

Auto-booting and Securing a Linux Server with an Encrypted Filesystem

I'm setting up some new Ubuntu servers, and I'd like to secure the data on them against theft. The threat model is attackers desiring the hardware or rather naïve attackers desiring the data. ...
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3answers
1k views

How to view EFS encrypted external hard driver on multiple PCs?

If I encrypt a USB drive using Windows 2008 EFS, will I be able to view the the contents of the drive on another PC (is there a way to provide credentials?)? The Windows 2008 system is using Windows ...