Encrypting tar files using openssl

Encrypting:

tar cvzf - passwd_info.txt | openssl -aes-256-cbc -salt -k secretkey | dd of=encrypted_passwd_info.tgz.openssl

Decrypting:

dd if=encrypted_passwd_info.tgz.openssl |openssl -aes-256-cbc -d -k secretkey |tar xvzf -

Ref: http://unixfoo.blogspot.com/2008/06/encrypting-tar-file-using-openssl.html