Stronghold

GitHub npm crates.io

API Reference

Store secrets and keys using the IOTA Stronghold encrypted database and secure runtime.

Supported Platforms

• Windows
• Linux
• macOS

Setup

This plugin requires a Rust version of at least 1.75

Install the stronghold plugin to get started.

Automatic

Use your project’s package manager to add the dependency:

npm

npm run tauri add stronghold

Yarn

yarn run tauri add stronghold

pnpm

pnpm tauri add stronghold

Cargo

cargo tauri add stronghold

Manual

1. Install the stronghold plugin by adding the following to your Cargo.toml file:

   src-tauri/Cargo.toml

   [dependencies]
   tauri-plugin-stronghold = "2.0.0-beta"
   # alternatively with Git:
   tauri-plugin-stronghold = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v2" }

2. Modify lib.rs to initialize the plugin:

   src-tauri/src/lib.rs

   fn run() {
       tauri::Builder::default()
           .plugin(tauri_plugin_stronghold::Builder::new(|password| {}).build())
           .run(tauri::generate_context!())
           .expect("error while running tauri application");
   }

3. Install the JavaScript Guest bindings using your preferred JavaScript package manager:

   npm

   npm install @tauri-apps/plugin-stronghold

   Yarn

   yarn add @tauri-apps/plugin-stronghold

   pnpm

   pnpm add @tauri-apps/plugin-stronghold

Usage

Initialize with custom password hash function

src-tauri/src/lib.rs

pub fn run() {
    tauri::Builder::default()
        .plugin(
            tauri_plugin_stronghold::Builder::new(|password| {
                // Hash the password here with e.g. argon2, blake2b or any other secure algorithm
                // Here is an example implementation using the `rust-argon2` crate for hashing the password
                use argon2::{hash_raw, Config, Variant, Version};

                let config = Config {
                    lanes: 4,
                    mem_cost: 10_000,
                    time_cost: 10,
                    variant: Variant::Argon2id,
                    version: Version::Version13,
                    ..Default::default()
                };
                let salt = "your-salt".as_bytes();
                let key =
                    hash_raw(password.as_ref(), salt, &config).expect("failed to hash password");

                key.to_vec()
            })
            .build(),
        )
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

Initialize with argon2 password hash function

src-tauri/src/lib.rs

use tauri::Manager;

pub fn run() {
    tauri::Builder::default()
        .setup(|app| {
            let salt_path = app
                .path()
                .app_local_data_dir()
                .expect("could not resolve app local data path")
                .join("salt.txt");
            app.handle().plugin(tauri_plugin_stronghold::Builder::with_argon2(&salt_path).build())?;
            Ok(())
        })
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}

Usage from JavaScript

The stronghold plugin is available in JavaScript.

import { Client, Stronghold } from '@tauri-apps/plugin-stronghold';
import { appDataDir } from '@tauri-apps/api/path';

const initStronghold = async () => {
  const vaultPath = `${await appDataDir()}/vault.hold`;
  const vaultPassword = 'vault password';
  const stronghold = await Stronghold.load(vaultPath, vaultPassword);

  let client: Client;
  const clientName = 'name your client';
  try {
    client = await stronghold.loadClient(clientName);
  } catch {
    client = await stronghold.createClient(clientName);
  }

  return {
    stronghold,
    client,
  };
};

// Insert a record to the store
async function insertRecord(store: any, key: string, value: string) {
  const data = Array.from(new TextEncoder().encode(value));
  await store.insert(key, data);
}

// Read a record from store
async function getRecord(store: any, key: string): Promise<string> {
  const data = await store.get(key);
  return new TextDecoder().decode(new Uint8Array(data));
}

const { stronghold, client } = await initStronghold();

const store = client.getStore();
const key = 'my_key';

// Insert a record to the store
insertRecord(store, key, 'secret value');

// Read a record from store
const value = await getRecord(store, key);
console.log(value); // 'secret value'

// Save your updates
await stronghold.save();

// Remove a record from store
await store.remove(key);

Permissions

By default all plugin commands are blocked and cannot be accessed. You must define a list of permissions in your capabilities configuration.

See Access Control List for more information.

src-tauri/capabilities/main.json

{
  "$schema": "../gen/schemas/desktop-schema.json",
  "identifier": "main-capability",
  "description": "Capability for the main window",
  "windows": ["main"],
  "permissions": [
    "path:default",
    "stronghold:allow-initialize",
    "stronghold:allow-create-client",
    "stronghold:allow-load-client",
    "stronghold:allow-save",
    "stronghold:allow-save-store-record"
    "stronghold:allow-get-store-record",
    "stronghold:allow-remove-store-record",
  ]
}

Permission	Description
stronghold:allow-create-client	Enables the create_client command without any pre-configured scope.
stronghold:deny-create-client	Denies the create_client command without any pre-configured scope.
stronghold:allow-destroy	Enables the destroy command without any pre-configured scope.
stronghold:deny-destroy	Denies the destroy command without any pre-configured scope.
stronghold:allow-execute-procedure	Enables the execute_procedure command without any pre-configured scope.
stronghold:deny-execute-procedure	Denies the execute_procedure command without any pre-configured scope.
stronghold:allow-get-store-record	Enables the get_store_record command without any pre-configured scope.
stronghold:deny-get-store-record	Denies the get_store_record command without any pre-configured scope.
stronghold:allow-initialize	Enables the initialize command without any pre-configured scope.
stronghold:deny-initialize	Denies the initialize command without any pre-configured scope.
stronghold:allow-load-client	Enables the load_client command without any pre-configured scope.
stronghold:deny-load-client	Denies the load_client command without any pre-configured scope.
stronghold:allow-remove-secret	Enables the remove_secret command without any pre-configured scope.
stronghold:deny-remove-secret	Denies the remove_secret command without any pre-configured scope.
stronghold:allow-remove-store-record	Enables the remove_store_record command without any pre-configured scope.
stronghold:deny-remove-store-record	Denies the remove_store_record command without any pre-configured scope.
stronghold:allow-save	Enables the save command without any pre-configured scope.
stronghold:deny-save	Denies the save command without any pre-configured scope.
stronghold:allow-save-secret	Enables the save_secret command without any pre-configured scope.
stronghold:deny-save-secret	Denies the save_secret command without any pre-configured scope.
stronghold:allow-save-store-record	Enables the save_store_record command without any pre-configured scope.
stronghold:deny-save-store-record	Denies the save_store_record command without any pre-configured scope.