Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.

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2
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2answers
174 views

Is it possible to decrypt remote files with key stored in pageant(local)

I connect from my windows desktop to linux(centos) vps using pytty, authenticating with key stored in pageant. Now I would like to store passwords in encrypted file and use them in scripts, but ...
3
votes
1answer
839 views

Creating a “Master Key File” in Truecrypt?

I have a few dozen employee thumbdrives that carry sensitive information. We'll be using TrueCrypt to lock down these drives. Each thumbdrive will typically be in a single employee's possession, and ...
2
votes
3answers
948 views

Disk encryption: advantages and drawbacks of hardware disk encription vs dm-crypt

I'm going to reinstall my system (Ubuntu) on a Samsung 840 pro SSD. This disk can do AES hardware encryption. I wonder what would be the drawbacks and/or advantages of taking this approach versus ...
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3answers
821 views

How to make encrypted password in below program?

cls @ECHO OFF title Folder Private if EXIST "HTG Locker" goto UNLOCK if NOT EXIST Private goto MDLOCKER :CONFIRM echo Are you sure you want to lock the folder(Y/N) set/p "cho=>" if %cho%==Y goto ...
2
votes
1answer
166 views

Ubuntu - How to leave an encrypted home directory mounted after log out?

Maybe I should be doing this differently, so let me know. I have a service which needs access to an encrypted home directory. The service runs as the user whose home directory is encrypted. As long ...
1
vote
2answers
547 views

Is Win 8 Bitlocker to Go locked to user profile, TPM or USB key?

Earlier Windows versions had EFS (Encrypting File System), which was a bit infamous for eating user data in the hands of inexperienced users. The reason is that EFS is tied to the Windows user ...
3
votes
1answer
2k views

Elliptic curve crypto: Using same ECC parameters results in different keys in each pass. Why?

I've been using OpenSSL as the library of choice. I created ONE set of ECC parameters via openssl ecparam -out ecparams.pem -name secp521r1 -genkey I then created two certificate requests, with ...
0
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1answer
239 views

PGP encrypted external Toshiba drive

I encrypted my external hard drive, a 350 GB Toshiba with PGP disk encryption and i forgot the password. Question: Is it possible to use a brute force attack (considering i know part of the password), ...
0
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3answers
150 views

how to encrypt an entire folder and continue moving plain files to the folder?

We have a folder on our server where daily files comes in from a remote machine. Everyday we check if the files came in and if so - we download them to our local machine. There are around 20 daily ...
2
votes
1answer
573 views

Evince allows text copying from encrypted PDF, while Adobe Reader does not. Why?

I've been trying to encrypt a PDF document so that people wouldn't be able to copy text from it or print it. So, basically, I disabled printing and copying. I used this command: qpdf input.pdf ...
2
votes
1answer
211 views

Encrypting a Dual-Boot Hard Drive

I have a computer dual-booting Windows 7 and Arch Linux. The Arch installation has already been encrypted with LUKS and LVM, as follows: sda Computer's Hard Drive, GRUB2 in MBR | sda1 ...
0
votes
1answer
359 views

What type of hash is used to encrypt the Lenovo T61p hard-drive password? [closed]

My computer (Lenovo T61p) broke recently, and I need to recover the information off my hard-drive. The hard-drive is password protected, and I know the password, however I also selected the "Use ...
33
votes
2answers
18k views

Best encryption and signing algorithm for GnuPG: RSA/RSA or DSA/Elgamal? [closed]

I have found this relatively old question about whether RSA or DSA is the preferred algorithm for signing and encrypting with GnuPG. When using gpg --gen-key, the two relevant choices are either "RSA ...
3
votes
6answers
19k views

I forgot my encrypted disk password on OS X

My disk is formatted with Mac OS Extended (Journaled, Encrypted). I have a super long and random password. It won't let me paste my password in and I keep manually typing it wrong. There is nothing on ...
2
votes
1answer
1k views

Encrypt plaintext password in AutoHotkey file

I automated my Yahoo! login process with AutoHotkey. It works fine, but problem is that when running this .ahk file, anybody can open the script and see the password. Is there a way I could ...
2
votes
1answer
439 views

Are iBooks ePub files encrypted?

I tried to open an iBooks ePub file with Adobe Digital Editions... and it came as like 100 blank pages. Is this a sign that it is encrypted, and if so, how do I decrypt it to plain text?
1
vote
2answers
211 views

Bitlocker File Encryption

I found out that Bitlocker is available only in Windows 7 Ultimate and Enterprise. I'm using Windows 7 Professional x64 and I'd like to encrypt one of my hard disks. Is it possible to "implement" this ...
2
votes
1answer
146 views

Does a wireless to wireless repeater have to know about encryption?

I am curious, whther a WLAN repeater needs to know about network encryption? It works on the 1st level of OSI Model - why does TP-Link write here that only WEP is supported?
1
vote
3answers
591 views

Is it possible using symmetric encryption to encrypt a file with two different keys?

GPG/PGP and other public key encryptions allow encrypting to several recipients using their public keys. Is it possible to use only symmetric encryption to do that same? In other words is it possible ...
-2
votes
1answer
78 views

How to automate email server testing with Outlook 2010 [closed]

I am fiddling with a home-built email encryption device. I'm sending email with Outlook 2010 from a local email address to my Yahoo webmail to test. I'm doing this quite a lot as I fool with the ...
5
votes
1answer
3k views

Portable folder encryption software that doesn't require admin rights?

I enjoy TrueCrypt a lot. It's fast and offers a decent amount of options, but it also requires you to have admin (super user) rights on the machine you use it on. I've experimented with DCU, Peazip ...
6
votes
1answer
990 views

Vim no longer prompts for encryption key when reading encrypted file; why not, and how can I get this restored?

I recently began using Vim to encrypt text files (by using the :X command and entering an encryption key at the prompt). As documented, Vim then prompts for that key when I reopen the file and ...
1
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0answers
160 views

Encrypting or protecting my ID for all applications

Problem I work in an environment where I have to use my LDAP ID+pass for running various applications as admin, sending emails, or for letting the application access the internet and so on.. A ...
5
votes
5answers
1k views

How can I encrypt a file on Windows 8 before storing it on Dropbox?

I would like to store some sensitive information in the cloud (my preferred cloud service is Dropbox). I would like to encrypt it before putting it in the Dropbox folder for synchronization. What's ...
1
vote
0answers
237 views

If I send an encrypted message using Apple Mail, are the attachments also encrypted?

A while ago, I'd tested this by sending myself an email with a file attached, then opening it in a web-based client. What I saw was a blank message with a single smime.p7m attachment. I assumed this ...
3
votes
1answer
4k views

Turn off write cache on all USB External Drives (Debian / Ubuntu / Linux)

How do you turn off write cache permanently for external USB drives in Linux (I'm using Ubuntu)? I've tried: Command line method : hdparm -W0 /dev/sdb <---- that works but only for the current ...
11
votes
3answers
937 views

How are User files in Windows 7 protected?

I noticed that I cannot access user files from one account across another. However, if someone took my HDD, hooked it up to another computer, would they be able to see the files? Is there a way to ...
3
votes
1answer
241 views

What makes a Partition Table valid?

QUESTION: What makes a Partition Table recognizable and valid to an operating system? (Linux specifically) ? Optional Background Info: I thought there was some sort of "signature" that defines a ...
0
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0answers
65 views

what cryption does windows(vista/7/8) use to store wi-fi passwords?

That is located at c:\ProgramData\Microsoft\Wlansvc\Profiles\Interfaces here is one example: ...
1
vote
1answer
327 views

Automatically remove encryption when copying to removable device [duplicate]

Possible Duplicate: How to remove Encrypted flag when copying a file from a HDD to a USB drive? Windows OS (8 64-bit). This question has already popped up in How to remove Encrypted flag ...
2
votes
2answers
11k views

Cracking truecrypt files in minutes? Or just truecrypt harddrives in minutes?

Apparently http://www.lostpassword.com/kit-forensic.htm can be used to crack truecrypt hard drive encryption. Has anyone tried it and is it possible to crack truecrypt files too with this software? ...
1
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1answer
96 views

How hard drive internal encryption works?

I see many hard or SSD drives with internal encryption. They often claim to have 256 bit AES. So I can write the data to such disk and data will be stored encrypted. And I can read that data in ...
0
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2answers
515 views

Is there any proxy standard/software which encrypts the conneciton between client and proxy server?

I know of usual HTTP proxys and Socks proxys (Socks 4 / Socks 5 - where the main difference as far as I know is the support for DNS resolution via proxy). Both variants more or less "pass the data ...
3
votes
0answers
910 views

Speed constraints of encrypted USB drives - Where are the bottlenecks?

I would like to keep my 1.5TB USB 2.0 external drive that I use for backups encrypted. I'm using TrueCrypt and have created a fully encrypted volume. This took 18 hours. My question is: Does ...
2
votes
1answer
313 views

Does eCryptfs prefetch and/or buffer data?

I have been experimenting with using eCryptfs as the underlying file system for MySQL data to mimic transparent data encryption for MySQL. I ran some tests to measure the overhead of decryption when ...
1
vote
1answer
840 views

Installing Debian on existing encrypted lvm

I have a dual-boot machine, where I already set up Ubuntu in an encrypted lvm. I want to use the same lvm for Crunchbang (a debian derivative), since I designed that lvm with two root-Volumes, a ...
-2
votes
1answer
68 views

Software to store my password on a crypted file and access it through another password [closed]

I'm looking for a software that allows me to store some passwords in something like "a text file", access it through a password, read my passwords if required and close it again. I want something ...
2
votes
0answers
145 views

How can I encrypt my whole personal user folder on Windows?

I share my computer with other people who also have administrative rights on this PV. To avoid giving them access to my personal data, like recent history, Dropbox content, and so on, I'd like to ...
1
vote
1answer
117 views

File security of books/papers on a eReader [closed]

In context with IT security it is suggested to encrypt data on portable devices like USB-sticks, so if they get lost the confidential data does remain secret. But what if they confidential material is ...
1
vote
0answers
581 views

Why “not a valid LUKS device”?

During installing Debian Squeeze I created partitions on a VPS (/dev/vda): vda1 = /boot vda2 = encrypted LVM (not using a standard way of Debian installer, but with the help of cryptsetup switching ...
1
vote
0answers
127 views

Encrypt Excel file on Windows for use on Mac

I have an Excel file open using Excel 2007 on a Vista PC. I wish to encrypt this file, and send it to someone to open on a Mac running Excel 11.6.6 (Office 2004). Is this easily achievable? I ...
0
votes
2answers
115 views

If I scp a file through an intermediate server, is the file stored temporarily on the server?

For the sake of simplicity (I find it easier to remember names than arbitrary letters), I will dispense with letters and use names to refer to the machines in this scenario. Say I have two machines, ...
0
votes
0answers
119 views

What is the right way to re-partition a disk with already installed linux?

What is the right way to fully re-partition my HDD (on a VPS -> no access to hardware), if there is currently installed a Debian Squeeze? I would like to create all encrypted LVM partitions, e.g.: ...
0
votes
1answer
99 views

What are the strategies available to minimise badblocks on an encrypted partition?

Let me explain my backup strategy and the problem I am facing. My current backup strategy: Open encrypted container and execute Carbon Copy Cleaner on it at least once a week. Rotate backup disks. ...
1
vote
1answer
995 views

gpg: import failure key xxxxxxxx: no valid user IDs

i am getting this error while importing a public key on gpg (GnuPG) 1.4.2 gpg: armor header: Version: GnuPG v2.0.14 (GNU/Linux) gpg: pub xxxxx/xxxxxxxx 2012-05-25 abcd xyz <email@address.com> ...
1
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1answer
508 views

How to create an encrypted swap partition in Debian 6?

I am installing Debian and would like to set up the /swap partition as encrypted. I am able to select either encrypted physical device or as swap/swap. Are there any methods to create an encrypted ...
1
vote
1answer
3k views

What is the difference between BitLocker and Windows RT's device encryption?

Windows 8 has BitLocker, a feature we know from Windows 7. I was looking at Windows RT and it has something like device encryption, which apparently is not BitLocker. no Bitlocker encryption ...
2
votes
1answer
553 views

Script to verify a signature with GPG

You can feed GPG a file that has been signed and it will spit out a "signature is good" message, and save the plaintext: [gh403@shillig-arch ~]$ gpg test.gpg gpg: Signature made Thu Nov 1 14:19:08 ...
8
votes
4answers
2k views

encrypted backups for Linux and FreeBSD readable for both

I have a Linux and a FreeBSD computer, both encrypted (LUKS and geli respectively). I am wondering how to make backups that would also be encrypted and would be readable to both (so that if one of the ...
3
votes
1answer
166 views

Is a password protected file compressed with Windows XP built-in compression also encrypted?

This seems like a simple question to find an answer for on Google but I'm having no luck, and when sites do mention anything about it, I fear that they are using "password protect" and "encrypt" ...