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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.

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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 http://www.cyberciti.biz/faq/howto-move-migrate-user-accounts-old-to-new-server/. At the time of configuring…
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How can I transfer a certificate from an account to another on Windows

Long story short, I have some configuration file for a tool containing sensitive information and the client want them encrypted. I want to use EFS for this, but there is a problem : the account doing the installation (and so the encryption) can not…
Teocali
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Encrypted User Directory on FreeBSD?

I'm running FreeBSD and I'd like to have user's files stored encrypted using his/her password, and have seamless SSH access to those files as well (provided that the user always uses password-based authentication). In Ubuntu this exact process is…
rustyx
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rsync over ssh - encryption on server

I have the following setup: Windows rsync -> ssh -> rsync Linux Each user has a different ssh key so only the user and the Linux admin can access the user's files on the server. The files are not encrypted on the server with that method. Now, I…
Laurent Luce
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Which Layer of the OSI model is responsible for encryption in WLANS?

Since WEP and WPA/WPA2 encrypt the payload of 802.11 MAC frames and we know that MAC goes under the Data Link Layer (Layer 2), can we also assume that encryption occurs in Layer 2 as well? At least with protocols such as HTTPS I know for sure that…
croussou
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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 get EFS recovery agent to work. I have a Client1…
iSi
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Sharing ENV variables between multiple linux servers

I need to be able to share ENV variables between multiple linux servers. These variables are used by my application. I'd like to keep these variables in sync between all servers. Application deployment is currently handled by Capistrano.…
brupm
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Encrypt Windows Backup

Is there a way to encrypt my backups using Windows Backup in Server 2008 R2 without using a paid for 3rd party application? I've searched high and low but have been unable to find anything. Thanks in advance! msindle
msindle
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How can I speed up my Duplicity backup?

I need to perform onsite backups of hundreds of gigabytes from a few Xen VMs to some storage available on a dedicated server in the same network, with a Gigabit connection. The data is mostly MySQL data - I use Percona XtraDB Cluster - backed up…
Vito Botta
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How does Arista EOS and Cisco IOS encrypt tacacs+ encyption keys?

We're using tacacs for AAA on our network devices, and I'm interested/curious in how our devices are encrypting the passwords device side. Following the Arista EOS manual, page 139, I'm running: switch(config)#tacacs-server key 0 cv90jr1 The guide…
David Mah
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How do I set up Apache HTTP authorization with a salt in my password?

I'm using mod_auth_mysql with Apache 2 and MySQL 5 for apache authorization. Right now our passwords are being stored in the plain in our database. As a new requirement, we have to store them with a salt, to fight rainbow table attacks. The…
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Encrypting peer-to-peer application with iptables and stunnel

I'm running legacy applications in which I do not have access to the source code. These components talk to each other using plaintext on a particular port. I would like to be able to secure the communications between the two or more nodes using…
Jonathan Oliver
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Bitlocker whole disk encryption on second (non-boot) drive

I'm working on a project where I need to encrypt only the data drive on a machine and I don't want there to be any user interaction at the console on boot. These systems will be running at remote sites and I will have to pay to have someone visit…
Christopher Stewart
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Backup on disc using TrueCrypt corruption problem

I recently burned a disc with a TrueCrypt volume. The burning process was bad and several blocks (all in the volume) were corrupted. Perfect! i wanted to test how TrueCrypt can handle corruption. So i was able to mount the volume fine and open up…
user274
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Does enigmail for thunderbird encrypt title of message

From what I've read, encrypting an email with pgp/mime with thunderbird+enigmail will encrypt the entire message including attachments. Does this also include the message subject title? If not, is there a way to do that with enigmail?
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