Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.

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73 views

OpenSSL CFB Modes

I'm trying to understand OpenSSL notation - what is the difference between, for example: AES-256-CFB and AES-256-CFB1 AES-256-CFB8 I get the CFB1 and CFB8 difference, but really can't find to ...
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0answers
115 views

ownCloud sync not working after migration from 8.0 to 8.1.3

I migrated my ownCloud server from 8.0 to 8.1.3 which forced me to reanable and migrate the encryption keys of my users. After this runs successfully without error I'm able to access my files from the ...
0
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0answers
42 views

Is it possible to store FileVault 2 key in the firmware?

I know that the Mac's firmware can store the FileVault recovery key during standby so it can resume transparently without making the user enter their password again. Apple even has a utility to ...
0
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1answer
292 views

Sign & Encrypt vs. Encrypt & Sign - What does GPG do?

I’ve already read the discussion Should we sign-then-encrypt, or encrypt-then-sign? and the paper Defective Sign & Encrypt in S/MIME, PKCS#7, MOSS, PEM, PGP, and XML. My question has to do with ...
0
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1answer
72 views

Encrypting a 2-HDD set-up with dual-boot Debian+Windows on 1 drive and Program Files+Data on the other

I had the following set-up in mind: SSD 1: Dual boot Debian + Windows (base OS only). HDD 2: Used for Program Files + Data. I assume that if I encrypt both drives separately, errors will show up ...
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0answers
66 views

I don't believe my Netgear VPN is an encrypted tunnel. What can I do?

I don't think that my VPN from Netgear is encrypted. I am using OpenVPN in combination with an R7000 router. I am able to access things attached to my home network so it's clear to me that some sort ...
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0answers
17 views

Access RDP only with USB drive

I am widely using RDP everywhere to my local computer. Is there any way how to add 2nd level of protection. I would like to make possibility to access RDP to specific user if only there is USB drive ...
0
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1answer
187 views

Windows Bitlocker - Two/Multiple drives with TPM

I have a Windows 10 laptop with two drives: an HDD that I use to store my data, and an SSD where the OS is stored allong with programs I use more frequently/require more performance. I use Bitlocker ...
0
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1answer
128 views

Error messages for one of my hard drives in syslog “Unhandled error code” “I/O error”

I am seeing some strange errors in syslog. I am running a debian 7.9. Has anybody seen these before and/or know what could be happening? Is my hard drive failing? I did an fsck the other day on ...
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0answers
48 views

Veracrypt Hash Algorithms Missing

I was going to encrypt my system drive with Veracrypt 1.14 and when choosing the Hash Alghorithm, I noticed there were only these two available despite cipher chosen: SHA-256 RIPMED-160 So ...
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0answers
44 views

Wiping external drives & encryption?

I decided to start encrypting my external usb drives and wonder whether i should wipe them first. So far i only had experience with 'Eraser' on my internal drives, but not sure how healthy that is ...
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16 views

Can I simply rename a TDE-encrypted SQL Server database?

I encrypted an SQL Server database using TDE.  What happens when I rename the database?
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130 views

Reading Encrypted Files from Android microSD Card

My wife had a Samsung Galaxy S3 which she just traded in for a new phone. I would like to get some of the files off of the micro SD card if possible but it was encrypted. I have tried using ...
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0answers
10 views

Unlocking external disks upon login

AFAIk, FileVault 2 on OS X automatically unlocks/decrypts the startup disk on login. Could external disks/partitions be unlocked on login? If not FV2, are there other ways, e.g., scripts? Scripts ...
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3answers
149 views

Use USB as a password/key

Is there any way to prevent a computer from booting up into Windows unless there is a USB device plugged in? I suspect this is difficult/impossible, in this case would there be any way to prevent ...
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1answer
292 views

How to protect PHP source files in a public server

I have a website which I made using PHP. Because I host my website in a public server; I want to know whether is it possible to encrypt my PHP source code of the website in that way to make it ...
1
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1answer
151 views

Is GnuPG symmetric encryption vulnerable to brute force attacks on the passphrase?

The handbook suggests that symmetric encryption is appropriate (and therefore not less secure than public key encryption?) when only you need to access the plaintext. But according to this post, ...
2
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1answer
779 views

Decrypt file on SD card of Samsung phone encrypted by Android 5.0

My Galaxy Note 4 does't recognize the encryption on my SD card anymore. I can't open any file. Now, since I have the password, I thought I could decrypt them myself, with Android Java or with C++ on ...
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2answers
1k views

How to Encrypt Home Directory on Windows 10 Home?

I want to encrypt my user's data but not the whole OS. (Secrutiy + Performance) Is there an option for home directory encryption in Windows 10 Home?
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0answers
8 views

Delete encrypted offline data on windows [duplicate]

I have a folder on my PC and set it to "Read/Write access for Home Network" Then on my Laptop I right clicked on the shared folder and set it to "keep it as offline files" I encrypted the offline ...
0
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1answer
58 views

Is it safe to mount my Truecrypt container directly from my Dropbox folder?

Apart from any discussion on if Truecrypt is still considered safe in terms of encryption (for the sake of discussion we asume it is): I'm running Linux Mint 17. I have the dropbox application ...
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0answers
23 views

Using OpenSSL and nmichaels.org/rsa.py respectively get the different encrypted results

First, I used OpenSSL to create a public key(modulus, e), then a text file is encrypted with the public key. Second, I inputed modulus and e(from 'First') at http://nmichaels.org/rsa.py, then using ...
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2answers
318 views

Edit a veracrypt encrypted drive from linux?

I'm looking for some help with decrypting my veracrypt encrypted drive, I know the password and everything needed to decrypt it from boot, but I changed the admin's password on the OS :( I figured I'd ...
0
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1answer
76 views

How to decrypt GnuPG encrypted folder?

I received a file with ".pgp" extension. I decrypted it successfully, but the resulting file seems to be wrong: the sender encrypted a folder, not a single file. However, I do not see a folder after ...
2
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2answers
73 views

Sending email using my GPG public key: Trying understand how to encrypt a PDF I will email

I am working on Mac OS X and using GPG KeyChain software to send an email to someone with my public key. It looks like the following: I am trying to understand the following two cases: When I ...
1
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1answer
26 views

How do I prevent Enigmail from encrypting my email, even when encryption is turned off?

Enigmail add-on to Thunderbird is encrypting all emails, even when encryption is turned off. I save the email as a draft, and when I view it in Drafts folder (or if it was sent), then it shows as ...
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0answers
33 views

Duplicate entry in /etc/crypttab (Debian Jessie)

I am using Debian Jessie 8.1 (systemd init) with an encrypted (LUKS) root partition. I recently noticed, that there are two identical entries for the root partition in /etc/crypttab. Is this really ...
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0answers
398 views

I've upgraded to Windows 10 Home, how can I decrypt my drivers from BitLocker?

Since Windows 10 Home doesn't have BitLocker support (you can unlock drives though), I've decided to use different software. That said, I need to decrypt my BitLocker-encrypted drives. How can I do ...
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0answers
69 views

Access Denied Encrypting Folders

I'm trying to encrypt folders on a Windows 10 computer (upgraded from Windows 7). I created a new folder C:\Temp and try to apply the "Encrypt contents to secure data" attribute. Even though the ...
0
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1answer
50 views

SSH key fingerprints don't match

I'm trying to SSH from my laptop into my desktop. On the desktop, ssh-keygen -lf ~/.ssh/id_ecdsa.pub yields 08:ac:cb:9c:e8:c2:4f:2c:1d:6e:54:ad:83:c7:27:47, but when I try to connect, I'm told the ...
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0answers
6 views

Is it possible to create more than one hidden volume within an encrypted volume?

You can create an encrypted hidden volume from an outer encrypted volume within Truecrypt or it's fork, Veracrypt... but is it possible to create more than one hidden volume within an outer encrypted ...
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35 views

Preparing backups for google drive with Encryption/Integrity [closed]

Google Drive terms allow them to reproduce or even publish data uploaded, which seams crazy. How is it wise to prepare your backups first before sending to google drive? My concern for my data is ...
0
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1answer
37 views

How secure is a mail account without TLS/SSL but encrypted password on Thunderbird

I am working with a new partner who has provided an 'internal' messaging service using an email server. It is designed to provide secure communications between geographically widespread individuals ...
0
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1answer
1k views

How to encrypt a dual boot system with Veracrypt?

I want to dual boot Windows 10 alongside Arch Linux on 1 SSD. The SSD is 465GB and I want to use Veracrypt to encrypt the hard drive and enable pre-boot authentication. I haven't attempted to do this ...
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33 views

Install Linux /boot to Custom Directory Within A Partition?

I have 3 Linux variants I would like to install (Kali, Fedora, and ArchBang). My laptop has 2 internal HDDs. My partitioning style is BIOS/MBR. The first drive currently has Windows 7, an empty ...
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28 views

Encrypt disk volume with LUKS, enable access without passphrase

How can I set “no passphrase, and don't prompt for one” on a LUKS volume, leaving it encrypted as is? Enabling LUKS encryption is a one-way, time-consuming operation. I need to divide the set-up of ...
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2answers
59 views

2 questions re Self Encrypting Drives (SED)

Can the SED be “turned on” with documents and files already on the computer? Are they affected in any adverse way? I have a laptop with SED that I’m wanting to use in a small work environment that ...
2
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1answer
51 views

Howto make encrypted volumes not fail boot when passphrase is not given

When setting up some encrypted partitions on my debian squeeze machine, all was so easy. I followed some howto and used cryptsetup to create the encrypted partitions now holding /home and /srv. The ...
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1answer
186 views

Ranked Order of Security for Encryption Algorithm Preferences: For GPG

GPG & PGP negotiate the encryption & hashing algorithm to use based on the recipient key's prioritized list of supported algorithms. The problem is DES/MD5 are forced to be included as the ...
1
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1answer
47 views

windows asking for format after unlocking bitlocker driver

I have internal 2TB hdd encrypted with bitlocker for almost 5 years, I have been using for just backup I did a restart and after unlocking and try to open it, the windows tells me the drive is not ...
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0answers
83 views

How to decrypt single file or folder?

In the proces of encrypting the whole drive, an error occured and my drive was broken. I've managed to recover all files. However, some of them were still encrypted. I've tried using TrueCrypt, but ...
1
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1answer
49 views

How do I encrypt specific files without moving them?

I share a Windows Vista computer with one other user. We're both administrators. I'd like to encrypt the files that are on my side so that if the other user changes my password they won't be able to ...
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1answer
26 views

Is it safe to encrypt two different partitions with they same keyfile / passphrase?

My question in particular is: Does using the same key multiple times ease bruteforcing the used keyfile or passphrase?
2
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2answers
190 views

Backup to external drive with full disk encription and bit rot prevention

I have a new USB external 2TB HDD and would like to use it as a backup for my home server. My wishes are: full disk encryption (the disk will be stored off-site) bit rot prevention Currently, I ...
0
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0answers
32 views

Backup encrypted SSD

Last year I used Truecrypt in my Windows and securelly backuping it was very easy: I just copied the container file to an external HD and I was ready to go. But now I have a Samsung EVO SSD. It has a ...
2
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1answer
166 views

Samsung SSD: Hardware encryption and speed

I concern about speed changes of the Samsung MZ-M5E1T0BW 850-EVO when hardware encryption/decryption is enabled. I can't find any information in the data sheets. Do you guys know if there is a ...
0
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1answer
197 views

How exactly does TrueCrypt work

I have some questions about how TrueCrypt and other Encryption Software work. TrueCrypt overrides the Bootcode in the MBR. Is there any other TrueCrypt Code on the disk which is not encrypted (Chain ...
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1answer
103 views

Using GnuPG or ccrypt to encrypt files?

When I encrypt some files (e.g. a folder or a tar-archive) whould you prefere gpg or ccrypt?
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1answer
62 views

Find and remove invisible EFS*.TMP files that are created by NTFS encrypting file system

On my Win7 64 Pro I encrypted a subdirectory using the standard Windows Explorer right-click context menu Properties -> Advanced function but I found out some time later that it created a bunch of ...
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38 views

Local password for remote connections

By default you log in to your PC and then connect a remote like Team Viewer or VNC. But problem with VNC is that you have a unencrypted login. So I thought I would have a last stop at my PC to force a ...