I'm looking for a way to secure my "files" hard drive (not my primary OS hard drive). I want something that would allow me to decrypt it on boot, with a decryption password of some type. It would then need to also encrypt again when shutting down.
Could anyone recommend a program for this? It would also be preferred if the separate actions had their own executable or way to be run from command line so I could use it with another project of mine, but this isn't required.
Thanks to anyone that can point me in the right direction!