It’s tax season and I like to backup my tax files to Dropbox. That way I’ve got offsite storage. To mitigate the fear of putting sensitive information on the cloud I encrypt it using the OpenSSL software available on all OS X Macs via Terminal.
Archive All The Files
I’m old school and use tar to create an archive of all my files.
> tar -cvf taxes-2014.tar taxes-2014-dir/.
this creates a file named taxes-2014.tar that contains all files in the directory taxes-2014-dir
Use OpenSSL to Encrypt and Decrypt
> openssl des3 -salt -in taxes-2014.tar -out taxes-2014.tar.des3.pwh
> openssl des3 -d -salt -in taxes-2014.tar.des3.pwh -out taxes-2014.tar
I like to append a Password Hint (pwh) to these filenames. They only get accessed once a year so I add a 1 to 2 character suffix as a memory jogger.
OSX daily has a brief discussion of OpenSSL file encryption/decryption.