Encryption

encryption

 Any procedure used in {cryptography} to convert {plaintext} into {ciphertext} in order to prevent any but the intended recipient from reading that data.

There are many types of data encryption, and they are the basis of network security. Common types include {Data Encryption Standard} and {public-key encryption}.

The Unix command crypt performs encryption.

--> PHP GPG

How to create encrypted file systems on Linux:

http://weigand.home.texas.net/efs.html

http://un.bewaff.net/

http://koeln.ccc.de/archiv/drt//crypto/linux-disk.html

General cryptography:

http://www.cryptographyworld.com