0
votes
0answers
16 views

full disk asymmetric encryption

Wondering if there's a protocol and open source program for full-disk, asymmetric encryption. Something like, encrypting the keys into the start of the disk (using AES/something stronger) and then ...
2
votes
1answer
14 views

Encrypted Lock Screens?

I really like the disk encryption to secure my funds, but my problem is I practically never have my computer off. I live a very busy life and shutting it down totally every night is entirely ...
1
vote
3answers
77 views

Encrypted files on a server [closed]

There is a way of encrypting the data files stored on the server to harden them against direct access or hacking. The website is in /var/www as usual and uses PHP to access data on another drive ...
0
votes
0answers
10 views

How to save kftpgrabber site in kwallet

I'm researching for a more secure FTP client which is more securelely stores site details like passwords, than Filezilla and found kftpgrabber fits with my need. However for get the most out from ...
3
votes
2answers
132 views

Is enabling TRIM on an encrypted SSD a security risk?

I recently installed Ubuntu 13.10 on an SSD drive using the "encrypt the new Ubuntu installation for security" option. I wanted to enable TRIM, so was following the guide provided here. One step says ...
0
votes
1answer
52 views

Is there a way to encrypt my files without full disk encryption

I want to encrypt my files and folders without full disk encryption and encrypted volumes. Can anyone help me?
0
votes
0answers
41 views

entropy_avail is 0 , Do the /dev/urandom output random bits?

If the entropy_avail is 0, can I get random from /dev/urandom (or /dev/random)? cat /proc/sys/kernel/random/entropy_avail 0 In the above case, can reading /dev/random provide different output for ...
1
vote
2answers
158 views

Unencrypted /boot partition can be infected from windows on dual-boot system?

I have dual-boot with windows 7 and ubuntu. /dev/sda1 ext4 (/boot) /dev/sda2 ntfs (windows partition) /dev/sda5 ext4 (root encrypted) I don't have any concern of adversaries gaining ...
0
votes
1answer
287 views

TKIP Encryption not visible

When I want to connecto to my AP whih uses Security type = WPA2 - Personal Encryption = TKIP There is no field I can enter TKIP encryption, I am asked only for Name, security type and Security key ...
0
votes
0answers
203 views

How to disable FIPS mode in /proc/sys/crypto/?

How can we correctly disable FIPS mode cryptography system wide? I've read is enabled by default in /proc/sys/crypto/ which has inside in text "fips_enabled". Is this the only place in the OS that ...
2
votes
2answers
855 views

For more security: overwrite empty disk space

I know it might seem a stupid question but I haven't come across any forum or post on the internet about: - What does "overwriting an empty disk space" mean/do? - Why doing that makes it more ...
4
votes
2answers
211 views

Is the lock screen secure enough to prevent “Mallory” from accessing the encrypted drive?

I use truecrypt to encrypt one of my drives and I would want to leave the computer running processes that use information of that drive while I'm not home, I've tried suspending it but everything ...
2
votes
0answers
115 views

Prevent that TrueCrypt gets Administrator rights

If I try to open a TrueCrypt drive, TrueCrypt asks me for my administrator-password (also when I am a normal user). I know, that i can prevent this password-asking by editing the sudoers file = giving ...
3
votes
1answer
72 views

Is the Ubuntu “Restore Test” program legitimate?

I have an encrypted home directory, and today when I came to my computer, there was a prompt I had never seen before labeled "Restore Test", which asked me to input my home directory decryption key. ...
0
votes
2answers
3k views

Unlocking the disk (sda5_crypt) Enter Passphrase

I had installed ubuntu 12.10 with security key for enscrypting system hard disk which requires you to enter the passphrase before the login screen every time you boot your system... i wanted to get ...
1
vote
1answer
598 views

Ubuntu 12.10 Encryption Details

Good Morning! Short version of the question below. Please help me understand the encryption features in Ubuntu 12.10. Installing Ubuntu, I opted both for the full disk encryption option as well as ...
1
vote
0answers
60 views

Security aspects of home dir encryption [duplicate]

Possible Duplicate: Is there a security risk if a password can be reset easily? Changing the login password will automatically make an encrypted home directory re-accessible, as PAM takes ...
0
votes
1answer
51 views

Will simple encryption be coming to 12.04

Will the simple encryption check box (on Ubuntu 12.10 live cd) be coming to the Ubuntu 12.04.x release?
1
vote
1answer
178 views

How to enable home directory encryption for a particular user?

I prefer to have a dedicated "administrator" user for technical purposes and that was one I've set up during installation. I've also refused to encrypt the home folder of the user. Now, as I've added ...
4
votes
3answers
506 views

Filesystem that gives an encrypted view of a directory—the inverse of EncFS

Currently I'm using EncFS to encrypt my directory "confidential" to ".encconfidential" and sync that encrypted directory using an online service (e.g. Dropbox, UbuntuOne etc). However my entire disk ...
1
vote
1answer
2k views

After Installation Whole Disk Encryption? 12.04

I know some fragments of this question have been asked in previous posts and I have reviewed them - however I have a more thorough question... I did not choose to do whole disk encryption when I used ...
1
vote
1answer
328 views

Can command line arguments be masked or hidden instead of appearing in the process list?

I have written a command line application in C++ that is used to access an online user account via a SOAP API. In order to avoid having any login details written to file anywhere on my machine for ...
6
votes
1answer
2k views

How do I encrypt a dual boot system?

I have a dual-boot laptop with four partitions - Windows, swap, Ubuntu (OS) andUbuntu /home. I need to do full disk encryption on it. Ubuntu is running 12.04, Windows is Windows 7 Home Premium.
1
vote
0answers
91 views

Why can I mount and read an encrypted home from another linux installation, without asking for a password? [closed]

Not only is home directory encryption veery noticeably affecting performance on my laptop (early C2D), but I also just discovered, that I can mount and read files on that "encrypted" home when booting ...
4
votes
1answer
563 views

Is /home encryption useful on a server?

I've got a question about the use of encryption: I set up a Ubuntu 12.04 server to use it as a router, file server for backups and webserver. Of course, it is probably not the best idea to put ...
2
votes
2answers
587 views

By default does RDesktop use any encryption?

When you use RDesktop to remote into another computer, is it traveling over the internet unencrypted? How secure is RDesktop, or should another application be used? Thanks
3
votes
1answer
162 views

Is file permission secured when it transferred from Ubuntu to Windows?

I am having 9GB text file which is encrypted . This file contains some confidential data . Which is on my system(Ubuntu) and my external HDD (ntfs) . This file get daily updated and then encrypted . ...
1
vote
1answer
1k views

Store the passphrase of encrypted disk in /etc/crypttab encrypted

I'm wondering, if I can store the passphrase of an encrypted disk in /etc/crypttab encrypted - and only possible to decrypt that by that OS, where I created. Is it possible? (because, I want auto ...
0
votes
1answer
48 views

Can I encrypt the OS for boot only?

I have a LAMP system running (of an SD card on small computer) that monitors some arbitrary data. I return the data as JSON from the page so that it can be used in whatever reason its fit for. I ...
5
votes
1answer
528 views

why is it a risk to clone a LUKS container?

I recently installed Ubuntu onto an encrypted partition using the LUKS+LVM combination that the 'alternate' installer offers. Now I want to create backups of my HD. From the LUKS FAQ: 6.15 Can I ...
2
votes
0answers
139 views

Cannot login to user with encrypted directory

I unknowingly deleted the .ecrypts directory while reinstalling Ubuntu 12.04. I created a default user by the same name while installing the new version. However, I couldn't login to the user after ...
3
votes
1answer
1k views

Can ecryptfs-setup-private be made to use a 256 bit AES key (instead of the default 128 bit key length)?

ecryptfs-setup-private will by default use an AES 128 bit key. Can I make it use a 256 bit key (32 bytes key length)? Of course, I could do the whole process manually as described here: ...
0
votes
1answer
275 views

How do you set up an Ubuntu server that is “encrypted at rest”?

We're working on a project in which the customer needs the Ubuntu server on which a web app and database are running to be "encrypted at rest". What's the best way to implement this?
1
vote
0answers
161 views

How can I tell if ZRTP is enabled in a Twinkle SIP call? [closed]

I recently attended a talk about GNU Telephony. I was informed that Twinkle supports ZRTP for encrypted SIP calls. I went into Edit > User Profile > Security and made sure that ZRTP was enables and ...
2
votes
1answer
196 views

Install Ubuntu on full encrypted HD?

I have here a windows on a full encrypted hd. I cannot disable this encrypted hd. Everything should be unchanged, I just want to Install Ubuntu on an extra partition. But here I think the problem is: ...
1
vote
2answers
345 views

what software can i use to access SILC Networks?

i want to access a SILC network and all the infos from the official site are missing (site down?!?) EDIT: it seems the site is back up as of last week. Good thing that i got curious and checked it ...
33
votes
6answers
40k views

Is there a way to password protect individual folders?

Let's say that I have a folder, within my Documents folder, that has files I want no one to access without a password. Is there a way to lock down that folder so that it's password protected / ...
6
votes
1answer
2k views

Storing passwords with python keyring

I'm using keyring library to store passwords in my python app. import keyring keyring.set_password('My namespace', username, password) keyring.get_password('My namespace', username) And this works ...
28
votes
8answers
10k views

How can I encrypt data in Ubuntu One or Dropbox?

I'd love to use Ubuntu One or Dropbox features, like file storage and so on, but I don't want anyone else to access my data, USA Patriot act etc.. I want things to be encrypted so that the only place ...
2
votes
2answers
661 views

How can I make Deja Dup use AES 256 as the encryption algorithm?

I'm using Deja Dup on Oneiric Ocelot. How can I make it use AES 256 as the algorithm for encryption? Or for that matter, how can I control which encryption algorithm is used? Deja Dup uses ...
3
votes
2answers
365 views

Use keyfile for encrypted swap [closed]

I installed Ubuntu 11.10 using the alternate CD and set up an ecrypted root and swap partition. Now, during boot, I have to enter a password for the root and a passwort for the swap partitition. I ...
8
votes
1answer
2k views

How can one unlock a fully encrypted Ubuntu 11.10 system over SSH at boot?

In previous versions of Ubuntu, and current versions of Debian, you can unlock a fully encrypted system (using dmcrypt and LUKS) at boot time over SSH. It was as easy as: Installing the encrypted ...
5
votes
4answers
309 views

GPG Workflow in 11.04

At work we handle the transfer of small bits of sensitive data with GPG, usually posted on a secure internal website. Until Firefox 4 was released, we used FireGPG for inline decryption; however the ...
0
votes
1answer
2k views

Alternatives to TrueCrypt [duplicate]

Possible Duplicate: Is there a tool to encrypt a file or directory? Hello. Are there any alternatives to TrueCrypt that work out of the box and don't require any installation? I am looking ...
3
votes
2answers
1k views

How to make a partition truly secure?

When I boot from an USB stick into my laptop I am able to mount and connect through chroot to the my hard drive and browse my files without a problem, while this has been something very very useful in ...
6
votes
3answers
10k views

How to disable cryptswap?

How can I disable cryptswap? I would like an unencrypted swap like before. This is on an ubuntu 9.10 system.
3
votes
1answer
1k views

Is full partition encryption the only sure way to make Ubuntu safe from external access?

(By "external access", I mean eg. via a Live CD, or another OS on the same dual-boot machine) A friend wants to try Ubuntu. He's fed up with Vista grinding to a crawl (the kids? :), so he likes the ...
2
votes
1answer
154 views

Does Ubuntu support the OpenBSD Crypto Framework?

I can't seem to find an answer to this question. There is the Linux Crypto API, and the OpenBSD Crypto Framework (OCF). I can't find anyting on Google as to whether Ubuntu supports OCF or if the ...
0
votes
1answer
739 views

Encrypted replication between normal CouchDB and Ubuntu One?

this is a very special question. Currently I'm starting to develop a new online shop using Python (Flask). I want to use CouchDB to store (and sync) new orders. But CouchDB does not encrypt the ...
10
votes
9answers
650 views

What's the best way to store a passphrase?

I've recently enabled Ubuntu's encrypted /home/ directory features and I was asked to remember a passphrase in case I would need to recover the data manually. What is the best way to store this ...