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

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2
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0answers
71 views

How to use an encrypted disk without needing an unencrypted boot partition

I would like to know if there is a way to encrypt a linux system which does not require a small unencrypted /boot partition. In addition I would like to know if encryption can be implemented on an ...
1
vote
2answers
962 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 ...
2
votes
1answer
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, ...
0
votes
2answers
203 views

Recovering files without .encfs6.xml

I've lost my .encfs6.xml file for a encfs volume. I still know my passphrase. Is there anyway to regenerate the .encfs6.xml based on similar volumes and the passphrase? Any chance of brute-forcing? ...
7
votes
2answers
897 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 ...
4
votes
1answer
346 views

Active Directory reversible encryption for single sign-on?

Problem: Creating and maintaining hundreds of student accounts The school where I work runs Active Directory on Server 2008. Every year, our students have to sign up for accounts with a third-party ...
8
votes
3answers
4k 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 ...
0
votes
0answers
18 views

Changing default encryption for OS X IPSec Client

We have two MacBooks -- one with Yosemite (10.10.2) and one with OS X Lion. IPSec to the office works from one but not from the other and the root cause seems to be that Yosemite uses AES as the ...
0
votes
0answers
11 views

How do I edit a signed or encrypted SMIME message to include a footer?

Is there any way to edit a signed/encrypted SMIME message so that there is a legal disclaimer on the message? I'm thinking about the MIME multipart email directive may allow for this.
10
votes
2answers
11k views

Is MySQL port 3306 encrypted, and if no, how can I encrypt it?

I am working through a security audit for a system at my work and one of the requirements is to encrypt all traffic through public/unprotected networks. Since we are accessing the MySQL database (over ...
0
votes
2answers
54 views

Decrypt a Header in Apache (HTTPD)

I've been asked to have a look at whether it's possible to decrypt a header during the processing of the request. The specific use case is to respond to the decrypted contents of the header by ...
0
votes
1answer
51 views

Recomendations for this mail server setup?

EMAIL SERVER SETUP Hey, its my first time using serverfault but I hope the community can help. I am trying to build a secure email system using Linux, Postfix, Dovecot and MySQL. I have read on ...
-2
votes
1answer
70 views

Generating public/private credentials for MS Outlook email encryption

An app running on a CentOS 7 web server needs to receive encrypted emails sent from users of MS Outlook. Can someone please provide explicit instructions as to how I can generate or procure all of ...
-2
votes
1answer
30 views

How to verify whether randomness was written to a device and what exactly has been written?

I am preparing a device with shred to use it later on encrypted with dm-crypt/cryptsetup/luks. How can I check the device before and after using shred or e.g openssl/dd with /dev/urandom to be sure ...
0
votes
0answers
21 views

Running python to unlock luks full disk encryption

I wish to make use of full disk encryption using Luks on ubuntu 14.04. However, i wish to make use of my own python script to carry out the functionality of generating the decryption key during device ...
-2
votes
1answer
45 views

mkpasswd on Centos 7 does not support -m flag [duplicate]

I cannot find how to install grub-crypt either. How can I generate SHA512 pass hashes on Centos 7? Edit: I was actually trying to look up how to generate hashes with an adjustable number of rounds. ...
-4
votes
4answers
80 views

Blocking another Win 2008 R2 admin from accesing some important folders [closed]

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 ...
0
votes
0answers
12 views

smb.conf - where do I set key and certificate for 'smb encrypt' transport encryption?

Reading smb.conf man page I can enforce encrypted smb transport; smb encrypt = mandatory. Where do I set the keys to use for the encrypted transport? I was expecting something like apache2: ...
0
votes
1answer
29 views

What ciphers do I need to disable in tomcat to match a specific apache conf?

I have instructions to disable weak ciphers in apache by adding SSLCipherSuite ALL:!MD5:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM to my httpd.conf. I am actually running tomcat, and in my ...
0
votes
0answers
51 views

Shibboleth SP - Signing and Encryption Key

I have a Shibboleth SP installed on Server 2012 R2. I tried to submit the metadata to be imported into the IDP and was told that without having the signing or encryption key, they won't be able to ...
12
votes
7answers
21k views

How can I disable encryption on openssh?

I'm having performance problems using openshh(server) and putty(client) combination to use a remote webproxy. I'd like to disable encryption and test the results to see if it makes a difference. How ...
2
votes
2answers
88 views

How can I encrypt my SSD but still boot unattended (linux)? [closed]

I have a system that displays video from a camera feed with an overlay, and it must boot without any user intervention (the quicker the better). However, these systems will be in the hands of ...
2
votes
0answers
47 views

Decrypt All traffic by wireshark [closed]

Ok I can decrypt a specified client connected to wifi by deauthing it and getting the handshake using wireshark. In fact after wireshark captures the EAPOL messages it starts to decrypt the traffic. ...
0
votes
0answers
30 views

Preseeding with RAID1 Encrypted LVM

I would like to preseed a debian wheezy system with Encrypted RAID1 LVM. I've done some google searching, seen others asking the same question, but have not found any answers. I have successful ...
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
1answer
314 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 = ...
1
vote
1answer
66 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
45 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
60 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
42 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 ...
0
votes
1answer
100 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
56 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
51 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
40 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
18 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 ...
0
votes
1answer
236 views

how to use GPG to decrypt multiple files to a different directory

I am trying to decrypt multiple files to a different directory keeping the existing filenames. When i run the below syntax it seems to decrypt them ok but it only ouputs to the screen. I would like to ...
8
votes
3answers
9k 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
61 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
39 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
1k 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
130 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
80 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
142 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
338 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
46 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
39 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, ...
9
votes
3answers
3k 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
242 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
282 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, ...