Here are some ways you can encrypt files on a linux system.
GPG
To encrypt a file with gpg, run
gpg --symmetric --cipher-algo AES256 -o FILE_NAME.secure FILE_NAME
You will be asked to enter password.
Example
boby@hon-pc-01:~$ gpg --symmetric --cipher-algo AES256 -o forums.txt.secure ~/work/MY_FILES/forums.txt boby@hon-pc-01:~$
To decrypt, run
gpg --output FILE_NAME -d FILE_NAME.secure
Example
boby@hon-pc-01:~$ gpg --output forums.txt -d forums.txt.secure gpg: AES256 encrypted data gpg: encrypted with 1 passphrase boby@hon-pc-01:~$
openssl
To encrypt with openssl, run
openssl enc -aes-256-cbc -in FILE_NAME -out FILE_NAME.secure
Example
boby@hon-pc-01:~$ openssl enc -aes-256-cbc -in ~/work/MY_FILES/forums.txt -out forums.txt.secure enter aes-256-cbc encryption password: Verifying - enter aes-256-cbc encryption password: boby@hon-pc-01:~$
To decrypt, run
openssl enc -d -aes-256-cbc -in FILE_NAME.secure -out FILE_NAME
Example
root@hon-vpn:~# openssl enc -d -aes-256-cbc -in forums.txt.secure -out forums.txt enter aes-256-cbc decryption password: root@hon-vpn:~#
