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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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Synology Cloud Sync : How to read encrypted files in the cloud?

I own a Synology NAS which i synchronised with Google Drive using the 'Cloud Sync' feature. For security reasons, i used the Synology built-in feature to encrypt the files on the NAS before sending them to the cloud. However now, i can't read them…
diabl0
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Samba TLS Setup

I'm reading this Samba Manpage and according to this, you can setup TLS. I've got 2 questions. On the Server-side, TLS options requires the path of the certificate and keys? How would that work on the client-side? How can I see that it would…
jarvis
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Cryptsetup luks - Check that kernel supports aes-xts-plain64 cipher

I encrypted a bunch of hard drives with cryptsetup luks encryption on CentOS 5. Everything was fine, until I upgraded my system to CentOS 6. Now I cannot mount the disks anymore. To mount with my keyphrase: sudo cryptsetup luksOpen /dev/sdc1 d2 I…
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Is the Outlook OST cache file encrypted?

Is the OST cache file created by Outlook encrypted? I understand that Outlook won't open the file unless it can connect to the user's Exchange account, but I'm wondering if there's a possibility that 3rd-party tools would be able to sift through it…
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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 smooth on-the-fly decrypting when programs run by me…
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What options are available to perform whole disk encryption with Snow Leopard

We would like to encrypt the entire disk of a Snow Leopard workstation running some sensitive file, database and web services. PGP does not yet work for 10.6, and we cannot use FileVault as it is not compliant with FIPS and would require…
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How can I encrypt my SSD but still boot unattended (linux)?

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 customers so we are worried about…
Chriszuma
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List of SSL Cipher Support by Browser

Not really sure if this is the appropriate SE to post this to, but here it is: Is there some online reference for what SSL ciphers are supported by the various browsers? Basically, I'm interested in hardening systems by ensuring lower key lengths…
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Determine if LUKS/dmcrypt key is present

I am writing a Chef LWRP to add a key to a LUKS container and I'm having difficulty coming up with a way to determine whether or not my key already exists. cryptsetup luksAddKey will happily add the same keyfile multiple times, so I can't simply…
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Windows XP Full Disk Encryption - What are the options?

I've been ask to look at full disk encryption software for our mobile users. We're running Windows XP SP3 PCs on a domain and my understanding is that we will not be upgrading to Vista and have no current plans to upgrade to Windows 7. This would…
Carl C
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How to mount a SAMBA shared folder from linux client machine using encrypted password?

I am trying to setup an auto-mounting network drive. The network drive requires a user/pass. In the man page for "mount.cifs" there are two ways to provide the user/pass. 1-[not recommended] put the user/pass in /etc/fstab 2-create a separate…
Roy Imad
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SQL Server 2012 - Transparent Data Encryption not available in this edition

Let me start by saying that the instance of SQL Server 2012 I am attempting to set up TDE (Transparent Data Encryption) on, is the Enterprise edition. However, when following the MSDN tutorial tutorial, I get to the following line: create database…
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Is there a way to make encryption default per contact in Thunderbird?

I administer several computers that have Thunderbird installed. I know Thunderbird has an option to require all email to be encrypted. However, I would like a way to allow unencrypted email normally, but require encrypted email to certain…
Daniel
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Encrypted storage for clustered MySQL

I have a requirement to provide a highly available MySQL database with encryption-at-rest on a 2.6.32 linux kernel. The 'highly available' part isn't that hard, but the 'with encryption-at-rest' is proving to be a challenge when used in combination…
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Windows Server 2008 BitLocker

I would like to configure whole disk encryption on all of my Domain Controllers. Is BitLocker an acceptable method to do this? What are the potential problems with whole disk encryption on a Domain Controller?
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