Alright so here’s the deal, you can use command line openssl to quickly (depending on the file size) encrypt a bunch of files or whatever you want.
openssl enc -aes-256-cbc -pass pass:PUTAPASSWORDHERE -e -in ENCRYPTTHIS.tgz -out TOTALLY_ENCRYPTED.secret
THE PASSWORD ABOVE IS IMPORTANT. You’ll need it if you intend on decrypting the data at some point:
TO DECRYPT:
openssl aes-256-cbc -d -in TOTALLY_ENCRYPTED.secret -out Decrypted.tgz -pass pass:PUTAPASSWORDHERE