Encryption is transforming information through a cipher to protect it.

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-1
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4answers
88 views

File and Database encryption [closed]

Just curious what do you guys use for file or database encryption? Any good programs out there or techniques employed for securing IT personal information? Main reason is the company I work for has ...
28
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13answers
45k views

How to create an SHA-512 hashed password for shadow?

The previous SF questions I've seen have lead to answers that produce MD5 hashed password. Does anyone have a suggestion on to produce an SHA-512 hashed password? I'd prefer a one liner instead of a ...
7
votes
1answer
406 views

State of hardware-assisted disk encryption in Linux

I use dm-crypt to encrypt partitions. I am building a small office server from consumer (or pro-sumer) category hardware. It made me wonder, hardware-assisted encryption is a notion in the air for ...
1
vote
1answer
28 views

How to provide encryption across file, folder, and email for small company

I'm the 1/2 time IT person for a small company. We run a MS environment using a Server 2003 Domain Controller, MS Storage Server 2003, and Exchange 2003. It finally occurred to them that I as an ...
1
vote
1answer
216 views

Adding column-level encryption after-the-fact in SQL Server 2008?

I am writing a web-app that will, at some point in the future, need to perform column-level encryption of a portion of the data it stores to our database running on SQL Server 2008 Express. It would ...
22
votes
2answers
13k views

I have a keypair. How do I determine the key length?

Using OpenSSL from the command line in Linux, is there some way to examine a key (either public or private) to determine the key size?
1
vote
1answer
565 views

Encryption on Solaris (using Keystore)

I am trying do draft up a secure way to encrypt (on the fly, invoking it from an app) and decrypt sensible information (credit cards) using AES-256. The target platform is: cat /etc/release ...
0
votes
1answer
153 views

Authenticate user(group) and encrypt port 8078 on a server using SSH2 keys?

I want to encrypt and authenticate port 8078 on a server running Jenkins using SSH keys (I'll pass our the public or private key as needed), and keep 8078 from being accessed by anything but SSH. I ...
1
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1answer
1k views

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 ...
0
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1answer
136 views

EFS encrypted files cannot be opened, even with the right key

I created a folder on my Win7 Pro machine, set it to encrypt contents to protect data. Then I opened MMC, added the Certificates snap-in for "my user account", expanded Certificates - Currrent User > ...
1
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1answer
1k views

Can I encrypt a single folder in Windows Server 2008 R2 with BitLocker?

Using Windows Server 2008 R2, is there a way to encrypt a folder, not the whole disk using Bitlocker?
1
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2answers
520 views

GELI / ELI at FreeBSD - changing passphrase

How can I change/replace the passphrase of an encrypted eli provider in FreeBSD? Do I have to recreate the entire provider and copy data, or is there a simpler and faster way? I've looked in the man ...
0
votes
2answers
482 views

Encrypting/Decrypting MPEG-2 Transport Stream in realtime [closed]

I have to send unicast mpeg2ts stream from one datacenter to another (dc1 to dc2). The output I get from encoder bank in dc1 is not encrypted and I need to encrypt it before sending it to dc2. At dc2 ...
2
votes
3answers
558 views

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 ...
3
votes
1answer
139 views

verify integrity of encrypted tar

I'm using tar along with openssl to create encrypted tar archives of some large directories (about 30GB). What is the possibility of corruption in this process, and how would I verify that the ...
2
votes
1answer
364 views

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 ...
0
votes
1answer
146 views

Encrypting files within a container on a virtual linux system without kernel modules

I have a virtualized linux system (vserver) that gives me all root privileges except manipulation of kernel modules. Now I wish to have a solution similar to TrueCrypt where I can create an encrypted ...
1
vote
2answers
932 views

md-RAID5 - How fast should it be or where is the bottleneck?

I set up a new server with a LUKS encrypted RAID5. On the former server, the bottleneck was definitely the CPU, as it was a 7y old single core and the load went up to 100%. Now it is different. I ...
8
votes
3answers
3k views

How to create a randomly keyed, encrypted swap partition, referring to it “by-uuid”, on Debian?

It is sensible that if you have any sort of block device encryption implemented on your GNU/Linux system, to encrypt your swap partition too, as any decrypted data may be written in cleartext at any ...
1
vote
2answers
1k views

How much performance cost for hdd encryption on NAS?

I recently purchased a NAS and it offers encryption. It is a QNAP TS459 Pro II. How much will performance be impacted if I choose to encrypt the data on the device?
2
votes
1answer
1k views

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 ...
0
votes
2answers
1k views

Encrypting an ODBC connection

Situation: We have a SQL Server 2008 R2 database sitting in a data centre We would like to allow analysts to connect to the database and query the data using desktop based tools (e.g. Tableau) via ...
2
votes
2answers
112 views

Decrypting a Linux/Ubuntu encryptedfs? [closed]

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?
1
vote
4answers
128 views

Encrypting a link between two data outlets on the same LAN

I have two systems in a rack that are directly linked together with a 0.25m Cat 5e cable so they can exchange data via NFS. As you may know, plain NFS does not inherently support encryption or user ...
1
vote
1answer
219 views

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 ...
4
votes
3answers
505 views

How can I cache a Subversion password on a server, without storing it in unencrypted form?

My Subversion server only provides access via HTTPS; support for svn+ssh has been dropped because we wanted to avoid creating system users on that machine just for SVN access. Now I'm trying to ...
6
votes
3answers
3k views

Is it possible to hardware accelerate LUKS encryption?

My Linux server spends a lot of time computing LUKS encryption. Is there any way to hardware accelerate it (with a PCI express card for example)?
1
vote
1answer
2k views

ESXi encypted VMFS?

Does anyone know a (free?) way to have a fully encrypted local-disk (no NFS,iSCSI,FC) VMFS inside the hypervisor itself? I am using ESXi 4.1 U2.
20
votes
4answers
1k views

Are encrypted backups a good idea?

I'm in charge of a small set of laptops and wanted to get some sort of automated remote (over WAN) backups going; the backups would be going to a RAID drive. Because we don't really have a secure ...
0
votes
1answer
359 views

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 ...
2
votes
1answer
193 views

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 ...
2
votes
2answers
219 views

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 ...
4
votes
1answer
1k views

What are the Jenkins/Hudson key files for?

After I have installed Jenkins (on Windows), the program folder contains, among others, two files: identity.key (28 lines) -----BEGIN RSA PRIVATE KEY----- MIIEow...... ... -----END RSA PRIVATE ...
3
votes
2answers
206 views

How common are encrypted connections between email servers?

alice@a.com --> smtp.a.com --?--> Internet --?--> pop.b.com --> bob@b.com On the route from sender to server, and server to receiver, encrypted connections (STARTTLS, etc) seem to get ...
5
votes
3answers
293 views

how to prevent a user using private key after leaving organization?

In the enterprise environment, each user was issue a key pair for using to encrypting/signing. Since they have the private key, that mean they can decrypt any file that encrypt for them, even after ...
1
vote
2answers
119 views

Fast, reliable, open source encryption for large logs

I intend to use cloud storage for some of my application logs. These logs might contain confidential business data, so I would like to encrypt them prior to upload. For security reasons, I prefer ...
1
vote
1answer
887 views

Cisco 877 VPN: PPTP encryption not working

A followup to this question. I have a Cisco 877 ADSL router configured (at last!) to act as a VPN server; it supports both PPTP and L2TP VPNs, and I can successfully connect to it from Windows ...
1
vote
1answer
91 views

Does MS SQL 2005 encryption protect data in the case of physical server access?

I am looking into MS SQL 2005 encryption (not 2008, so TDE is out), and I believe I understand the concept of how a column is encrypted. The OS uses the service credentials to encrypt the service ...
0
votes
1answer
189 views

How to sign and encrypt all sended mail via sendmail\postfix

I have certificates x.509 for signing and enrypting outgoing emails. I want to create plain emails in some app (Ruby on Rails app in my case) and send it via sendmail with autosign and autocrypt ...
1
vote
1answer
105 views

Client certificate based encryption

I have a question about security of a file on a webserver. I have a file on my webserver which is used by my webapplication. It's a bitcoin wallet. Essentially it's a file with a private key in it ...
1
vote
1answer
135 views

Shared encrypted network volume accessible from for both Macs and PCs

Due to financial regulations, I need to set up a shared encrypted network volume with the following properties: Shared encrypted network volume with read/write access for specific users. ...
2
votes
2answers
91 views

Disk encryption without cooperation from system

I have a small embedded system that supports fat32. It does not have any encryption options for the files that it saves to a external usb connected disk. Modifying the source to support encryption is ...
1
vote
1answer
350 views

PGP Encryption Proxy for Mail Server [closed]

I have a friend who is located in a part of the world that makes email encryption prudent for them. While I recommended OpenPGP, my friend thinks that it would have too high of a setup requirement for ...
6
votes
3answers
243 views

Sending HIPAA compliant e-mails

At a small office, my clients' HR department needs to communicate with some vendors regarding HIPAA-covered material. How do most companies deal with securely sending e-mails regarding HIPAA. I ...
2
votes
2answers
238 views

Is it safe to alter the underlying encrypted files for a live mounted ecryptfs volume?

I want to do live synchronization of an encrypted directory with a server, such that the server only sees encrypted data. Suppose I put the underlying ecryptfs data in: /home/user/.Private And I ...
2
votes
1answer
402 views

Setup ecryptfs for Ubuntu 10.04 web server user directories or not? Will Apache still have access with eCryptfs?

When setting up an apache2 server on ubuntu 10.04 Server should the home directories be encrypted? Or, should the complete disc be encrypted? If the user home directories are encrypted will apache ...
0
votes
2answers
87 views

Mail “proxy” to add encrypted authentication support for legacy programs

There are some programs that my company use that do not support encrypted smtp authentication and using unencrypted auth is not possible (hosted on the internet by another provider, they will not ...
1
vote
1answer
280 views

Asymmetric ciphers for protecting IMAP server-side mail folder

I'm looking for a guide, or just a list of tools with some advice. I want to protect the emails stored on the server-side (in a Courier-IMAP server). A basic flowchart to illustrate the idea. ...
4
votes
1answer
2k views

What kind of algorithm does .htpasswd uses?

I am trying to generate this kind of hashes programmatically: axF3s9cdEnsNP But I can't identify what kind of hash it is. The hash comes from a .htpasswd file. All the online htpasswd generators I ...
1
vote
1answer
723 views

Problem with setting up partitions - encrypted swap partition won't mount

Here's the layout I have; I'm using Software RAID10, LVM, and Encryption: LVM VG vg0, LV main - 2.0 TB Linux device-mapper (linear) #1 2.0 TB K crypto (vg0-main_crypt) ...