Encryption is transforming information through a cipher to protect it.

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3
votes
3answers
7k views

How do I limit SSL/TLS connections to at least 128-bit encryption?

When I'm ordering an SSL cert for my public web server, how can I be sure that the web server (IIS 6 in my case) will only allow SSL/TLS client connections supporting our corporate standard of at ...
1
vote
2answers
809 views

Bitlocker drive encryption on AWS Windows instance

I'm trying to figure out how best to protect the data of a single Windows Server 2012 instance on AWS and according to "AWS_Securing_Data_at_Rest_with_Encryption.pdf" it says: "Encrypting Amazon ...
1
vote
1answer
92 views

Encrypting SMB traffic with Samba

We use Samba on Ubuntu 14.04 LTS as a PDC (primary domain controller) with roaming profiles. Everything works fine, except for if we try to enforce encryption via setting: server signing = ...
2
votes
1answer
30 views

After resizing an encrypted LVM device, the machine takes 4 hours to boot

I have a host, under Debian Wheezy. The virtualisation software is qemu/KVM, and uses LVM Volumes as disks for the guests. The guests all have been installed using debian wheezy, full-disk ...
1
vote
0answers
11 views

Remmina TLS, NLA works, but high encryption fails

Remmina works fine with TLS and NLA. But if encryption is set to high instead of client compatible, then it stops working. Questions: 1. Why setting high encryption prevents connectivity? 2. What's ...
1
vote
0answers
23 views

Debian KVM Host, Debian guests : where full-disk encryption should be done?

I have a host under Debian Wheezy, running qemu/KVM. I want to have all my guests fully-encrypted. I can see to possibilities : - Either I encrypt the LVM Volume using dm-crypt (cryptsetup) and use ...
0
votes
0answers
26 views

Possible to decrypt FDE/SED Samsung 840 upon boot without native BIOS/UEFI support for ATA password?

It's possible to encrypt and decrypt a drive with hdparm coupled with Full Disk Encryption like some Samsung and Intel SSDs. What I'm curious about is if it's possible to use with a Desktop ...
7
votes
2answers
439 views

Should I encrypt OS disk with BitLocker for HIPAA compliance

I am looking into hosting a HIPAA compliant web application on Azure VM's. For the database, right now I am leaning towards using a VM with SQL 2014 Standard Edition. Since TDE is not available with ...
0
votes
1answer
77 views

How do I encrypt large (20Gb+) compressed files from a backup?

I want to encrypt regularly created and compressed backup files from OpenVZ containers, before they leave the server and get copied to the providers backup space via ftp. They vary in size, from 6 to ...
0
votes
1answer
22 views

Sun T2/Niagara Hardware Crypto Acceleration with Debian Linux?

I wanted to use an older T2 machine as a webserver for SSL heavy websites. With Solaris, there is the crypto acceleration available which would make sense for SSL. Now I am wondering if this crypto ...
1
vote
2answers
36 views

Iptables: Filtering string encrypted by ssl

I need to filter (send to BANRULES set) incoming http/https packets with a certain string (matchword). I do it easy when ssl is not in use (port 80): iptables -A INPUT -p tcp -m tcp --dport 80 -m ...
1
vote
0answers
31 views

How can one determine what Kerberos key encryption algorithms are supported on a Cisco IOS device?

When attempting to load an SRVTAB over TFTP, I receive an "Unsupported keytype" error: abc(config)#kerberos srvtab remote 1.2.3.4 abc.srvtab Loading abc.srvtab from 1.2.3.4 (via Vlan123): ! [OK - 121 ...
0
votes
1answer
16 views

Using samba password to encrypt partition

I have a local server with encrypted partition just for data, which I want to serve through samba server. I want to avoid re-entering password on each server start (e.g. on electricity failure) for ...
2
votes
0answers
1k views

Outlook 2010 cannot reply to encrypted email

A coworker and I occasionally use encrypted email to send passwords. We both are using Outlook 2010, and both of our Digital IDs were created by the same authority. For my coworker, creating, ...
-4
votes
4answers
71 views

Blocking another Win 2008 R2 admin from accesing some important folders

I have sold half my dedicated server to somebody but I dont want them accessing my web hosted Plesk files for my Wordpress website. As some of them are custom and confidential. I gave them local ...
8
votes
3answers
7k views

Is STARTTLS more safe than TLS/SSL?

In Thunderbird (and I assume in many other clients, too) I have the option to choose between "SSL/TLS" and "STARTTLS". As far as I understand it, "STARTTLS" means in simple words "encrypt if both ...
0
votes
0answers
32 views

Encrypting SVN Store with ecryptfs

I previously had TrueCrypt setup to automount my SVN repos on the Subversion server at boot with an automated network script that used a keyfile on a protected share to mount the volume. Now that ...
-1
votes
1answer
36 views

2008R2 Server to Server Encryption [closed]

What is the best way to encrypt data between internal servers? We have a few homegrown apps that run on 2008R2 servers that transmit sensitive data. Would an IPSec connection between the two servers ...
-2
votes
3answers
983 views

FreeBSD encryption concept: automatic boot without password or key, when mounted by another system?

Recently, i installed FreeBSD for work and geli for encryption. (Full disk encyrption without boot partition.) When I finished getting it setup, I found that every time it boots, I need to enter the ...
0
votes
0answers
73 views

Do I have to somehow enable AES-NI on Nginx?

I've got CPU With AES-NI, I would like to use this function with nginx. ssl_engine aesni; - this parameter was used before openssl 1.0.0, but now, openssl is bundled with aesni support. And this ...
1
vote
1answer
67 views

Determining if an SSL cert is affected by SHA-1 phase-out

Google chrome will start to warn users that their SSL connection is insecure under the following conditions: The cert uses the SHA1 hashing algorithm, and The cert expires on or after 2016-01-01 (or ...
2
votes
1answer
72 views

Prompt for Certificate Password When Accessing EFS Shares

My boss wants to set up encrypted file shares using EFS on Windows Server 2012 R2 Boxes accessed by Windows 8.1 clients. I've been able to set the default DRA, issue certificates in test cases and so ...
1
vote
1answer
315 views

DB encryption for Django web app without storing key on server

We are setting up a virtual private server (not hosted by us), on which we will be user testing our Django-based web application. The user-generated content produced in these tests will be very ...
-6
votes
1answer
44 views

encryption of fiber communications [closed]

We have to connect one site to another using leased fiber ( theoretically it's a dark one ) in order to replace a radio link. All servers are in one site. Both location now have Gigabit networks. Can ...
1
vote
1answer
34 views

encrypted (luks) partition had some damage - any chance?

I was trying to run Debian installer on top of an already luks-encrypted partition (I tried to do use cryptsetup in the console). I don't remember ever saying "yes, destroy" data, but what I see now, ...
8
votes
3answers
2k views

ZFS RAID and LUKS encryption in Linux

I'm planning to setup a set of 3x 2TB 7200rpm drives as a LUKS-encrypted Z-RAID pool in Linux (for a NAS solution). My understanding of the problem at hand is that the only way to achieve this is to ...
2
votes
1answer
198 views

EFS Recovery Agent not working

I know EFS data recovery has been discussed so many times in the forums but I could not find anything useful in the other threads as I believe I have followed all the required steps but still cannot ...
2
votes
5answers
10k views

Is IPSec the only way to encrypt Microsoft SMB (CIFS) traffic?

I'm looking for ways to encrypt Microsoft SMB data traffic between a client and Windows server or filer appliance. This is not about encrypting the authentication but the actual data transfer. Is ...
0
votes
2answers
175 views

How to disable Null and Weak Ciphers on 389-Directory-Server

I am running 389-DS on CentOS. Version - '389-ds-base.i686 1.2.11.15-34.el6_5'. Security scans revealed that NullCiphers were found on Port 389 and 636. I tried to disable them by shutting down DS, ...
3
votes
2answers
708 views

Changed encfs password, but filenames didn't change

I thought changing the password with 'encfsctl passwd path/to/encrypted' would change all filenames. But it didn't work. Any ideas why? I got this, so the password was changed correctly: Enter ...
0
votes
1answer
25 views

How to re-create the symmetric key on Amazon RDS

We have some column encrypted by symmetric key. Now we want to upload our database to Amazon RDS (SQL Server). Can we do that? If yes, how?
4
votes
8answers
1k views

protecting my files from root

In a remote box, my files are 700-chmoded, but I'm worried that root may be reading them. Is there a way to add another layer of protection to avoid that, perhaps by encrypting them, but allowing ...
0
votes
3answers
93 views

Encrypt communications on local network

I'm developing a web application that runs on a server local to the same network as the client- basically, instead of a central web server, each customer site will have its own server hosted on the ...
1
vote
2answers
3k views

Disable all but RC4 in apache

Our PCI compliance vendor requires that we disable all but RC4 encryption on our web server. Currently our apache config file looks like this: SSLHonorCipherOrder On SSLCipherSuite ...
0
votes
1answer
92 views

Is OTR required for XMPP message encryption? [closed]

I use XMPP for sending instant messages from a bot in a server to a laptop client. I have full control of both the clients (bot and laptop client) and they are both connected to the same server which ...
0
votes
1answer
35 views

Moving data across countries securely [closed]

Currently I am planning on moving data from a number of remote sites across to our head quarters in Germany. The data is too large to replicate/copy over site to site VPN so I'm going to have to do ...
1
vote
0answers
36 views

Most secure way to encrypt critical data to be shared, edited and seen (must ALWAYS be secure)

This question does not rely on time... so it's not about keeping data on tape or anything similar. I have 3 distinct PCs with critical information. PCs are running Windows OS. They all hold critical ...
29
votes
13answers
49k 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 ...
10
votes
3answers
6k views

SSL Certificate Class 2 vs Class 3 vs Class 4

I just got a "Premium EV SSL Certificate" form GoDaddy.com. Apparently as of 8 months ago GoDaddy doesn't provide Class 3 Certificates. ...
2
votes
2answers
2k views

How to mount encrypted volume at login (Ubuntu 12.04, pam_mount)

I'm trying to get pam_mount working on Ubuntu 12.04. I have /dev/sda1 (encrypted partition) with /dev/dm-1 (ext4 formatted) inside it. Should ~/.pam_mount.conf.xml be trying to mount /dev/sda1 or ...
2
votes
1answer
139 views

How can I encrypt 2008 Server Running under esxi

I have a need to run multiple 2008 R2 VMs under the free esxi. Storage will be local to the host. As I understand it, BitLocker is not a supported option in a VM environment from either Microsoft or ...
5
votes
4answers
4k views

Are there any FIPS-140-2 certified solutions for Linux?

I'm not even 100% certain what this involves, but my current understanding is this: use of only approved cryptographic algorithms for network traffic (easy, we use SSL and lock down the algorithms ...
1
vote
0answers
637 views

How to encrypt a section within web.config using aspnet_regiis -pe or -pef

I am a developer trying to encrypt part of my web.config file in an ASP.NET site (first time I've tried this...). Having repeated failures with all types of syntax changes, so perhaps better to post ...
-2
votes
1answer
149 views

Speedup of fixing an openssl bug with 8192 bit key [closed]

This is related to this Bug-Report https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=747453 OpenSSL contains a set of arbitrary limitations on the size of accepted key parameters that ...
0
votes
1answer
304 views

Encrypt Files Before Sending To Bittorrent Sync

Is there a way to encrypt files before being sent to Bittorrent sync, either via a plugin, or by encrypting the files first? Also do you trust Bittorrent Sync's encryption?
0
votes
1answer
180 views

Problems saving encrypted emails from Outlook into Document Management System

We use a commercially available Document Management System (DMS) which integrates with Microsoft Outlook 2010. This allows users to save important emails in the DMS so that their colleagues have ...
0
votes
2answers
63 views

How to recover key after using LuksRemovekey?

I have an encrypted partition on /dev/sda5, yesterday I use cryptsetup to remove the encryption using cryptsetup luksRemovekey /dev/sda5, but when I restart I have to provide a passphrase for ...
0
votes
0answers
96 views

SQL Server 2012 : recover lost symmetrical encryption key or just disable encryption

We currently face a huge problem and we hope you can help us. We have two systems (Dynamics CRM 2013) on two different servers, both use SQL Server 2012. One on our dev server the other on our live ...
1
vote
2answers
79 views

Encrypted partition and hardware failure

I have a kind of philosophical question. I'm about to set a new backup server and as time is passing encryption of data seems more and more reasonable. However what if the harddrive goes bad. I know ...
1
vote
2answers
216 views

Migrate user and passwords to new linux box

I am trying to migrate old Centos 4.3 box to Centos 7. I have followed the migration steps from an article published way long back on ...