feat: add crypt4ghfs-rust

__fs/crypt4ghfs-rust/README.md

@@ -0,0 +1,75 @@
+> Copied from: https://github.com/EGA-archive/crypt4ghfs-rust
+
+# Crypt4GH File System (in Rust)
+
+[![Crates.io](https://img.shields.io/crates/v/crypt4ghfs)](https://crates.io/crates/crypt4ghfs)
+[![Docs.rs](https://docs.rs/crypt4ghfs/badge.svg)](https://docs.rs/crypt4ghfs/latest/crypt4ghfs)
+![GitHub](https://img.shields.io/github/license/EGA-archive/crypt4ghfs-rust)
+
+Crypt4GH FUSE File system in Rust. It allows to encrypt and decrypt crypt4gh files in a directory automatically.
+
+## Installation
+
+> Requirements: [Rust](https://www.rust-lang.org/tools/install)
+
+Supported platforms:
+
+-   **Linux** (tested on Ubuntu 20.04)
+-   **macOS** (up to Big Sur, Monterey does not support FUSE yet)
+
+```sh
+cargo install crypt4ghfs
+```
+
+## Usage
+
+The usage of the command is the following:
+
+```txt
+USAGE:
+    crypt4ghfs [FLAGS] <MOUNTPOINT> --conf <conf_path>
+
+ARGS:
+    <MOUNTPOINT>
+
+FLAGS:
+    -h, --help       Prints help information
+    -v, --verbose    Sets the level of verbosity
+    -V, --version    Prints version information
+
+OPTIONS:
+        --conf <conf_path>
+```
+
+## Configuration
+
+```toml
+[DEFAULT]
+# Extensions to be detected as encrypted
+extensions = ["c4gh"]
+
+[LOGGER]
+# Whether to use syslog or to output to stderr
+use_syslog = false
+# Level of the logger. Should be one of ["TRACE", "DEBUG", "INFO", "WARN", "CRITICAL"]
+log_level = "DEBUG"
+# Syslog facility
+log_facility = "local2"
+
+[FUSE]
+# The options that will be sent to fuse. The following are available:
+# "allow_other", "allow_root", "allow_unmount", "default_permissions", "dev", "no_dev", "suid", "no_suid", "ro", "rw", "exec", "no_exec", "atime", "no_atime", "dir_sync", "sync", "async"
+options= ["ro", "default_permissions", "allow_other", "auto_unmount"]
+# Path to the root directory of the filesystem
+rootdir="tests/rootdir"
+
+[CRYPT4GH]
+# Path to the public keys of the recipients to encrypt to
+recipients = ["tests/testfiles/bob.pub"]
+# Include log of the crypt4gh encryption / decryption
+include_crypt4gh_log = true
+# Include my public key to the recipients (so I can decrypt the file too)
+include_myself_as_recipient = true
+# Path to my private key
+seckey = "tests/configs/bob"
+```