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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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'Certificate types are not available' When creating computer certificate?

Environment Windows Server 2008 sp1 Xeon CPU E5430 @ 2.66 GHz 16.0 GB Ram 64-bit Operating System 1TB Disk Space Server Role: SQL Server Other Information: Joint to domain, Logged in user domain administrator Issue Steps that cause issue: Create a…
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How to send "ATA Secure Erase" command to SSD?

A very good way to erase a SSD which have SED support is to change the password/key. But what to do with those that doesn't have SED support? This article says Fortunately it is possible to erase most SSDs, though this is closer to a “reset” than…
Jasmine Lognnes
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Traffic in a AWS virtual private cloud

On Amazon AWS, should I encrypt sensitive traffic between instances in a virtual private cloud? More specifically, is the traffic between the instances in such a VPC private as in a virtual network, or can it be intercepted? Couldn't find this info…
arnuschky
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How secure/private is full disk encryption on a VPS?

Security principles say that if someone else has physical access to a machine, then there is no security/privacy. I'm wondering about some examples of this in the case where I want to have a hosted Virtual Private Server (VPS) with full disk…
user779159
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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 current Encfs password EncFS Password: Enter new Encfs…
HappyDeveloper
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How to detect Dell TPM from inside Windows?

I need to know whether my server has TPM installed. It is located 10000 miles away from me so going there to look at the BIOS is not an option. It is also not anyhow described on the Dell website nor wikipedia. So please answer only if you know how…
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Are there huge drawbacks to using an excel 2010 document for password management?

At my old job, we used an open-source, (IMO) secure method for managing network infrastructure, and other important hosts' passwords [with Keepass]. At my new job however, it seems like they're using password-protected excel spreadsheets. Before I…
l0c0b0x
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Approaches for Linux server disk encryption

What are the approaches available for fully encrypting a disk on a remote server (say, colocated in a datacenter)? On Windows, we can just turn on Bitlocker with a TPM. Then the server can reboot, and attacking either requires taking the machine…
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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 years, is it reality yet? The two crytical points of…
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Truecrypt: File vs Device hosted encryption

TrueCrypt allows the user to create an encryption volume on a file or a device hosted encryption on a drive or partition.What is advantage or disadvantage of one over the other?
BlueGene
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Can I compress an encrypted file?

I have an encrypted file (AES Symmetric encryption).For backup purposes and to save disk space, Can I compress (lossless) the file without worrying about messing up the decryption? If so, can you recommend some good compression programs for this…
BlueGene
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Certificates in SQL Server 2008

I need to implement SSL for transmissions between my application and Sql Server 2008. I am using Windows 7, Sql Server 2008, Sql Server Management Studio, and my application is written in c#. I was trying to follow the MSDN page on creating…
Brandi
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Encrypting absolutely everything, even within the LAN

Has anybody tried that approach already? I'm really considering it: Instead of relying on network based IDS etc., every packet must use encryption which was initiated by a certificate issued by my own CA. Every client gets a unique client…
Chris Lercher
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Data missing after ZFS replication on FreeNAS/TrueNAS

In order to use the new encryption method in TrueNAS 12 I copied all data from a legacy encrypted FreeNAS pool to a newly formatted pool via a replication task. After replication there seems to be almost a GiB missing on the target pool: Source pool…
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win10 how to encrypt single file, right click folder encrypt invalid recovery certificate

In window 10 enterprise, corporate environment (if it matters). I have a single file with info I want to protect, and I want to encrypt just this single file. And I only want to do this in Windows, if it's just win10 that's ok. I right click on…
ron
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