# Vault > A simple CLI based document encryption/decryption using a only a password. ## Install ```bash $ cargo install vault-cli ``` ## Usage ```bash $ vault close --retain-source # Encrypts a file without removing it afterwards $ vault open --retain-source # Decrypts a file without removing it afterwards ``` You can verify that the file is indeed the same after encryption and subsequent decryption by running `shasum` on the original and the decrypted file. Check `vault --help` for more options.