Transfered from Linux Config Disqus comments:
Is there a easy way to encrypt and decrypt a file on a Ubuntu Linux system?
If you are looking for a simple way to encrypt and decrypt files your should consider to use ccrypt. Use a following command to install ccrypt on a Ubuntu Linux system:
# apt-get install ccrypt
When ready you can use ccrypt to encrypt any file. Example:
$ ccrypt to-encrypt.txt Enter encryption key: Enter encryption key: (repeat) $ ls to-encrypt.txt.cpt to-encrypt.txt.cpt
In the above example we have encrypted a file to-encrypt.txt. Output of this operation is file to-encrypt.txt.cpt. To decrypt this file we need to use ccdecrypt and encryption key we used to encrypt it:
$ ccdecrypt to-encrypt.txt.cpt Enter decryption key: