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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Samsung SSD: Hardware encryption and speed

I concern about speed changes of the Samsung MZ-M5E1T0BW when hardware encryption/decryption is enabled. I can't find any information in the data sheets. Do you guys know if there is a (significant) ...
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16 views

How exactly does TrueCrypt work

I have some questions about how TrueCrypt and other Encryption Software work. TrueCrypt creates a Bootloader on the System Disk and overrides the Windows Loader. Is the Windows Loader deleted from ...
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1answer
28 views

Using GnuPG or ccrypt to encrypt files?

When I encrypt some files (e.g. a folder or a tar-archive) whould you prefere gpg or ccrypt?
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1answer
8 views

Find and remove invisible EFS*.TMP files that are created by NTFS encrypting file system

On my Win7 64 Pro I encrypted a subdirectory using the standard Windows Explorer right-click context menu Properties -> Advanced function but I found out some time later that it created a bunch of ...
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6 views

Local password for remote connections

By default you log in to your PC and then connect a remote like Team Viewer or VNC. But problem with VNC is that you have a unencrypted login. So I thought I would have a last stop at my PC to force a ...
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1answer
25 views

How to encrypt a SD card without Bitlocker or TPM [on hold]

I'm setting up a Windows 10 laptop for someone else. They have a SDCard and we want to make sure it's only accessible on that machine. The card will be holding synced Google Drive files so if it's ...
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1answer
19 views

This website contains unencrypted elements?

I purchased a SSL certificate for my website and it is displaying a warning icon and warning message. This website does not supply identity information. The connection to this website is ...
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0answers
4 views

Is it possible to create multiple hidden volumes within an encrypted volume?

You can create an encrypted hidden volume from an outer encrypted volume within Truecrypt or it's fork, Veracrypt... but is it possible to create more than one hidden volume within an outer encrypted ...
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7 views

PowerShell: Automatic Join-Domain with Secure String - 'Encryption Key' Usage

I work in an enterprise environment, where I manage a lab of 75 computers. I use Ghost to image and then I walk the computers afterwards to change the PC names and SIDs. I am implementing a script ...
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1answer
17 views

Hide BitLocker “Unlock Drive” Notifications in Windows 10?

In Windows 10, when you mount an BitLocker encrypted drive (vhd in my case), Windows issues a notification prompting you to unlock the drive. Is there a way to turn off this particular notification? ...
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1answer
6 views

openssl smime message signing: why do I need a -certfile key?

Here is how one should sign a message with openssl smime? according to the docs openssl smime -sign -in in.txt -text -out mail.msg -signer mycert.pem \ -inkey mykey.pem -certfile mycerts.pem But ...
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1answer
35 views

How does TOR or a VPN keep you annonymous?

Ok, I've got a few things that are bugging me about TOR proxy and VPNs. More specifically how they keep you annonymous, for example, say that I'm using VPN and that my internal IP address is ...
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32 views

What are some ways of bypassing SSL and HTTPS site blockers/security? [on hold]

What are some ways of bypassing SSL and HTTPS site blockers/ security? I have a job at In-trek Co. here in Europe and they taught us some basics of how to bypass socks4 and socks5 security software. ...
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7 views

Stop disk decryption in progress and restore encryption

This is similar to "is there a way to stop mac osx disk encryption in progress?". I started decrypting my 2TB backup drive to use it for something else, but now I don't need that, I want my encryption ...
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1answer
65 views
+100

OpenSSH 5.3 - Change encryption algorithm for private key file

Using ssh-keygen, I need to generate a SSH private key file where the encryption algorithm used when using a passphrase is AES-128 with CBC mode. I know this is the default for OpenSSH >= 5.4 as per ...
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17 views

OpenSSL listen and decrypt automatically

I want to design an application to connect my server using OpenSSL and send encrypted data (encrypted with server public key) to specified port on server like 4433. All client using server public key ...
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50 views

Encrypt hard disks with VeraCrypt in a mixed Windows / Linux system

My system is a dual boot Ubuntu / Windows PC. I installed several hard disks: Two SSDs (one for Windows 7 Pro, one for Kubuntu 15.04) and some conventional disks for data. Currently the Linux disk ...
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1answer
18 views

How do I run an application only as long as my home-folder is decrypted?

I've recently started using syncthing, and I've run into a challenge: I have my home folder encrypted on my laptop, and I want to sync folders from inside my home-folder. The folder is encrypted ...
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39 views

Full disk encryption on Samsung 850 Pro, no UEFI

I've recently upgraded (clean install) to Windows 10 Enterprise. I installed an 850 Pro SSD at the same time. Knowing that this drive could support hardware encryption for Bitlocker, I naively ...
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0answers
20 views

GPG with tar.gz at the same time without the full path being packed

I would like to compress and encrypt a folder: tar -cz "/path/to/the/folder/" | gpg --encrypt --passphrase "password" --recipient "mail@mail.mail" > "/destination/package.tar.gz.gpg" When I ...
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14 views

Prevent Administrator from listing Encrypted User Folder contents in Windows7

On a Windows7 system with a standard user and an administrator, the standard user encrypted his Documents folder using windows built in folder encryption feature. When the standard user is not logged ...
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0answers
19 views

Open encrypted volumes created by LibreCrypt in linux

How can I open encrypted volumes created by LibreCrypt on linux? These Volume is created by LibreCrypt on Windows7 and is formatted with fat32. When I tried opening this volume in Linux through ...
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1answer
20 views

Basic AES decryption problem

I'm working through the book Cryptography Engineering, and the current problem goes something like this: Using an existing cryptography library, decrypt the following ciphertext (in hex form): ...
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1answer
19 views

When multiple Encrypting File System certificates are installed, which one is used for encryption?

To encrypt a file or folder in Windows, you basically go to its Properties and check Encrypt contents to secure data. Windows will use the certificate for Encrypting File System (EFS) that is ...
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Do not know the password for windows bit locker drive encryption, just want to format drive

I am a total computer novice. I have a hp elitebook 840 and I cannot gain access to windows as stuck on screen asking for bit locker drive encryption key which I do not have. I just want to format the ...
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1answer
59 views

Changing System Drive from GPT to MBR

I currently have an Acer Laptop running Windows 10. My system drive currently has a GUID Partition Table (GPT) but I want to convert it to MBR Partition Table. Doing this wont be a problem as I found ...
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11 views

EFS can decrypt a file but not re-encrypt after modification [migrated]

I have a Windows 2008 R2 server with a shared folder containing an encrypted subfolder (EFS) for each user with important files. For security reasons 2 additional DRA's have been configured on the ...
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1answer
23 views

How to compress an encrypted partition or drive in Windows?

Could someone let me know is there any effective way to compress an encrypted drive or partition in Windows to reduce its size ? Thanks
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1answer
25 views

Accessing Windows encrypted files on another PC

I am new to WIndows EFS and find it very useful except with a problem, can't access those files in another Windows PC. I find some tutorials on how to access them in other windows PCs(1, 2). After ...
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1answer
54 views

How to share an encrypted storage on Windows, Mac OS X and Linux in a secure way

I got a 2 TB drive that I have to use with both Windows 8.1 / Windows 10 and Yosemite to OS X / OS X El Capitan and maybe even on Linux. I need to encrypt the volume. Or rather, I want to create two ...
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1answer
34 views

Use of own propriety encryption in OpenVpn

The revelation that the American and British governments have cracked SSL/TLS leaves a lot of questions for the future of OpenVPN. The project cannot continue forward built on top of an insecure ...
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2answers
49 views

What are the correct permissions for the .gnupg enclosing folder? gpg: WARNING: unsafe enclosing directory permissions on configuration file

I don't want to just chmod and run until I get the right answer, nor do I want to run GnuPG as root. The easy fix would be to just set it so that only my user can read it, but I don't think that's the ...
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How does BitLocker to Go leave an unencrypted file (BitLocker to Go Reader) that is readable by Windows XP or Windows Vista without extra software?

BitLocker to Go volumes are fully supported on Windows 7 and later. For compatibility with systems running Windows XP or Windows Vista, a utility called BitLocker to Go Reader is provided to enable ...
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Encrypt non-system zpool

I want to encrypt a 3x1TB HDD mirror. My boot drive is a single SSD, I don't want to encrypt it or back it up. The encryptedZfs Ubuntu page is extensive, and directed at those installing the OS on an ...
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How is it possible to install one's Web application on a customer's server without the customer having access to the source-code

One of our customers would like a private installation of our web application on their intranet for security reasons. How is it possible to install one's Web application on a customer's server ...
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1answer
52 views

Can't enable BitLocker auto-unlock on drive (“invalid function”)

I just upgraded my computer to Windows 10 by doing a clean install after formatting my boot drive. My boot drive is an SSD, and all my files are on an HDD that I didn't erase. I have all my volumes ...
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4 views

Encrypt distant server (file-system) using CPanel/WHM

I want to encrypt my distant CentOS server (whole filesystem encryption). CPanel & WHM are installed on it, can I use them to turn my server encrypted ? Thank you
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1answer
228 views

Windows 10: Bitlocker without TPM

I have an Asus K55A laptop without a TPM. For over a year, I had Windows 8.1 installed and Bitlocker was enabled requiring a password at startup. I recently upgraded to Windows 10 Enterprise (clean ...
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1answer
35 views

input/output errors using encfs and dropbox

I have a 200 gig Encfs encrypted file system living in my Dropbox and being accessed by multiple machines, and I've never had any problems with it until now. I moved about 10 gigs of data around on ...
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32 views

How is my password used by bitlocker (in win 10)?

Does bitlocker use my password to unlock a key, which is then used to encrypt the drive? Or is the password they key? If the former, where is the key stored? On the system disk? My concern lies ...
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2answers
508 views

How can i prevent my windows 10 from sharing wifi details with my contacts

In recent release of windows 10 we could see new feature named wifi sense which raised the following security threat as per this blog post : This brilliant new feature, which Microsoft has dubbed ...
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How to restore OS when I've deleted Kernels from full disk encrypted Ubuntu 14.04 (also with home directory encryption)

I have an Ubuntu 14.04 OS on which I enabled full-disk encryption and home directory encryption. In the process of updating Ubuntu my boot folder was too full to update so I ran a command I thought ...
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1answer
32 views

ssh proxy command with netcat

In example like this: Host destination ProxyCommand ssh gateway nc %h %p Is the connection between the gateway and the destination encrypted? I am confused because I have 2 hypotheses and both ...
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1answer
29 views

open a pgp file and edit the decrypted content, re-encrypt on save [closed]

I use dropbox to backup my data, but I don't trust it. It's mostly for .txt files Is there a way of opening them (with emacs or sublime text or something else), and edit the underlying content like ...
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0answers
38 views

Recovering a deleted 128-bit encrypted .dmg file

I need to recover a recently deleted 15 GB .dmg file, which was deleted from a drive which is otherwise not in use. It should be easy to recover, but neither Data Rescue 3 nor Disk drill seem to find ...
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3answers
8k views

Can I upgrade to Windows 10 with BitLocker Enabled?

I am currently running Windows 8.1 Pro, with BitLocker enabled (the hardware has no TPM, though). I am curious as to whether I will be able to upgrade to Windows 10 when it is rolled out without ...
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Encrypted folder with decryption through network on Windows 7

I'm trying to figure out some way how to have an encrypted folder, which could be decrypted throught network. I have Windows 7 Professional, I've searched for some ways, tried Bitlocker but it works ...
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2answers
2k views

Firefox 39 - Secure Connection Failed - weak ephemeral Diffie-Hellman key in Server Key Exchange handshake message

As of Firefox 39, connecting to an old administrative interface for some third party software gave the following message: Secure Connection Failed An error occurred during a connection to ...
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1answer
17 views

How to see the encryption algorithm in firefox

Is there any tool through which I can check the encryption algorithm being used when I am accessing a website in firefox? The plug in should be able to show me security related information, like ...
2
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1answer
68 views

How to use backup EFS certificate to decrypt encrypted files?

I have some files that were encrypted on a now extinct Windows 7 system. I made sure to backup my keys, this one is called efs.pfx. Double-clicking it launches the Certificate Import Wizard which ...