Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [encryption]

Encryption is transforming information through a cipher to protect it from unauthorized access.

Encryption is the process of taking some information (the plain text), and transforming it (usually with a cypher and a key) so that it is secure. Assuming a sufficiently strong cypher and key have been chosen, this cyphertext can be shared widely, without the information being compromised.

The reverse of Encryption is Decryption, where the process is reversed (normally by someone holding the key and cypher details) to return the information.

See the Wikipedia Page for more details.

775 questions
2
votes
3 answers

decrypting AES files in an apache module?

I have a client with a security policy compliance requirement to encrypt certain files on disk. The obvious way to do this is with Device-mapper and an AES crypto module However the current system that is already in place is setup to generate…
Tom
  • 11,176
  • 5
  • 41
  • 63
2
votes
2 answers

Different results from GnuPG and OpenSSL when using AES256 encryption

Text: apple Pass: password openssl aes-256-cbc -e -a -in apple.txt Output: U2FsdGVkX1/sqDrVkgk/7dKiCfLW+1/bgvRT/YAopJQ= gpg -c --cipher-algo AES256 apple.txt Output:…
Howard
  • 2,135
  • 13
  • 48
  • 72
2
votes
1 answer

Is Intel AESNI supported by Xen in VPS/Cloud hosting environments?

I'm having trouble determining whether when using a hosting company that uses Xen virtualization and Intel processors with AESNI embedded encryption, I would have access to AESNI (i.e., is it an available hardware resource in such environments).
Dan
  • 21
  • 1
2
votes
1 answer

practical document encryption in shared environment

I can't seem to find a good, practical way to encrypt documents on a shared drive... This is a samba share on centos using ADS auth. The primary doc format will be PDF. Is there a good on-thy-fly encryption/decription scheme I can't find? Things…
stormdrain
  • 1,439
  • 7
  • 28
  • 52
2
votes
5 answers

Encryption between a LAN switch and an end device

What standards/protocols/products exist that support encryption of all data sent between a device (e.g. a workstation) and a LAN switch? Something like WPA for WLAN.
Alex
  • 1,828
  • 4
  • 31
  • 52
2
votes
1 answer

RHEL package containing JCE (Java) Unlimited Strength Jurisdiction Policy Files to support higher level encryption?

Are there packages for RHEL and distros based on it (CentOS, Scientific Linux, etc.) that contain the Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files so that higher levels of encryption can be supported in Java? I know…
Gary S. Weaver
  • 113
  • 2
  • 10
2
votes
2 answers

Linux in AD: Supported enctypes for Windows 2003 AD

In the MIT Kerberos implementation that comes with most Linux distributions, I can define what encryption type I want to use for ticket requests. I am not a Windows guy, but apparently, Kerberos as a whole offers a lot of options here and Windows AD…
wzzrd
  • 10,409
  • 2
  • 35
  • 47
2
votes
3 answers

How do I configure an SSL only site, in a way that doesn't affect browser connection limits

The Yahoo Developer Best Practices recommend using multiple hosts (host1.company.com, host2.company.com, etc..) as a way of overcoming a webbrowsers built in limitation of only issuing two concurrent requests per domain. Please gloss over this…
makerofthings7
  • 8,911
  • 34
  • 121
  • 197
2
votes
1 answer

Apache serving files from an encrypted drive returns a 403 forbidden error

I create a sparsebundle and mount it as a virtual drive for each development project I work on. This works great until I needed to add encryption to one of the projects for added security of my client's files. When encryption is on Apache returns a…
puppybits
  • 145
  • 4
2
votes
1 answer

How to prevent users from copying or printing files?

The head of my company is concerned about data leak. In order to strengthen the protection of sensitive data I have to limit ability to copy and print certain files from the employess notebooks. I thought about using True Crypt so that copied files…
B14D3
  • 5,188
  • 15
  • 64
  • 83
2
votes
2 answers

Decrypting a Linux/Ubuntu encryptedfs?

I have an image of a linux machine with an encryptedfs (/home/.private, etc). Is it possible to export the file structure and mount it from a different linux box/VM?
JDK
  • 21
  • 1
2
votes
1 answer

Using Encrypting File System on SQL Server data files

I have SQL Server 2008 standard edition running on Windows Server 2003. I need to encrypt the databases. One obvious option is to upgrade to enterprise edition and use TDE. However, this might not be an option due to cost. Can anyone provide any…
Robin Day
  • 506
  • 1
  • 8
  • 19
2
votes
1 answer

How to encrypt document root of Apache and all MySQL databases?

I need it encrypted and be decrypted just only when apache started, so this is the plan: Boot computer. Decrypt /var/www and mysql databases files. Start apache. So maybe its the path not to use mountion encrypted containers like truecrypt do.
Clark
  • 347
  • 2
  • 5
  • 13
2
votes
1 answer

Recover encrypted file

I am running SBS Server 2011. I encrypted a text file file1 and placed it under the documents folder in the user profile of user1. Now I accidentally removed user1's account when I was adding/removing email accounts in the Exchange Management…
user89352
  • 21
  • 2
2
votes
2 answers

Looking for centrally managed full-disk encryption product for Windows 7

Let me start this off by saying I've already evaluated and have planned to purchase SecureDoc Enterprise from WinMagic. However, due to billing issues (not price) I'm afraid I may not be able to make that purchase so I'm now scrambling to find a…
Chris76786777
  • 979
  • 5
  • 21
  • 35
1 2 3
…
51 52