This is a simple way to encrypt / decrypt a file in 2 fast and simple commands. Several times and talked about ways different to encrypt a file, folder or a CD, then Ccrypt is another method to integrate.

# Apt-get install ccrypt

encrypt:

$ Filename ccrypt

will be asked to enter a password, and encrypted files have the extension. cpt

decipher:

$ Ccrypt-d filename

To use GPG is another way to encrypt important documents, as an alternative to encfs and mcrypt . There dell'interfacce

graphics to generate GPG keys. For those who use Gnome, seahorse, if you use KDE, kgpg. In this case, use the terminal.

You need to first generate the key with the command:

gpg --gen-key

At this point we answer the questions that appear on the screen, and insert our data, such as name, email, etc. etc.,

choose a password, and begin to move the mouse until the password has not been created., there must

display a message like this:

<span > We need to generate a lot of random bytes.</span> <span > It's a good idea to perform some other action (type on the keyboard, move the mouse, utilize the disks) during the prime generation; this gives the random number generator a better chance to gain enough entropy.</span>

Now we are ready to encrypt a file using the name we chose at the beginning of the creation of the key.

Encrypt:

gpg-e-r edmond test.txt

or alternatively:

gpg --encrypt --recipient edmond prova.txt

Deciphering:

gpg --output prova.txt --decrypt prova.txt.gpg

oppure:

gpg --output prova.txt --symmetric prova.txt.gpg

Per ulteriori informazioni, man gpg

T his is a guide for creating CD / DVD encryption. So, for my data set does not find anyone, first of all let's not forget the password yourself, otherwise the cd / dvd can throw it, since there would be no way to recover, at least not in times land. Remember that the password must be at least 20 characters. So you need to install:

apt-get install mkisofs aespipe loop-aes-utils

At this point we create an image file. Assume you have a folder with pictures that we want to protect, and then burn them later. The folder called into question the picture (not fantasy), we can use a 128 or 256-bit key, of course we'll use that to 256 bits. Then:

mkisofs-r photos | aespipe-e aes256> foto.iso

At this point we insert the password, being careful

Create a directory to mount the iso image

mkdir / mnt / iso

load modules

modprobe aes

modprobe cryptoloop

mount-t iso9660 foto.iso / mnt / iso-o loop = / dev/loop0, encryption = aes256

Now we are ready to burn the iso, regardless of whether our burning program gives some error like this:

At this point we will have an encrypted CD to access them you must mount it with:

mount-t iso9660 / dev / cdrom / mnt / iso-o loop = / dev/loop0, encryption = aes256

clearly reminding passoword.

Or gnuno of us, more or less, is jealous of something, or at least, has some things he wants to keep confidential, and I to

I was always an example set for the privacy and security in general, so I always tried to protect

my data. So for all fixed, the faithless, or lovers of porn pictures now talk about Truecrypt. The peculiarity of

truecrypt is defined encryption / decryption on-the-fly, which means that the data contained within a volume are

encrypted / decrypted automatically a few moments before being read or written, without user intervention. To access the

to the protected volume, truecrypt require a password previously created at installation time. So before

proceed with installing grab the sources from here , or if you are using ubuntu and opensuse packages

precompiled. Below I show the process made by me on Debian lenny. First install a dependency,

namely, a tool for the management of the volumes

apt-get install dmsetup

I downloaded the source on the desktop then:

cd Desktop

tar xzf truecrypt-4.3a-source-code.tar.gz

cd truecrypt-4.3a-source-code

Linux cd

compile

. / Build.sh

If all goes well, we get this:

Home/edmond/Desktop/truecrypt-4.3a-source-code/Linux debian :/ #. / Build.shChecking build requirements ... Building kernel module ... Done. Truecrypt ... Done Building.

install

. / Install.sh

Now we begin to create the encrypted volume

truecrypt-c / home / edmond / volume-cryptato

Some questions will appear on the screen, you can begin to answer that:

Now create a folder for the mount

mkdir / mnt / folder-crypted

proceed with the mount of file created (the volume-cryptato) that we will find in our / home

truecrypt-u-cryptato volume / mnt / folder-crypted

from this moment on, we can copy files or create folders within the folder-crypted, secure.

to remove

truecrypt-d-volume cryptato

One must be careful not to forget the password, Asthe if you forget, there's no way to get it.

Here other options truecrypt