Vim file encryption

Vim provides two file encryption methods: `cm=zip` (PkZip compatible, default method) and `cm=blowfish`. To encrypt a file, simply `:X` and you will be prompted for the key. If you have `key` set to a encryption key, then it will be used to encrypt and decrypt files. Note that setting `key` by hand isn't recommended by Vim help, so you may need to write a short script to load the key from a file without echoing out to screen. Like Chrome/Chromium's Incognito mode has warned us: Be wary of People standing behind you. I would recommend another method for encryption, if you have an entire directory to protect. EncFS is another way and it do not require special permission, but the system has to have FUSE. It mounts encrypted directory to where user can mount. Read more: * https://yjlv.blogspot.com/2013/11/vim-file-encryption.html * http://usevim.com/2013/11/01/vim-encryption/ * :help cryptmethod * :help :X * :help key